Difference between revisions of "CLAS12 R1"

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[[File:08172012_TheTeam.png| 100 px]]
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=CLAS12_R1_Progress_Reports=
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PR:
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A particle detector build by ISU was successfully commissioned last month at the Department of Energy's Jefferson Lab facility in Newport News, Va.
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 +
 +
 +
[[CLAS12_R1_Progress_Reports]]
 +
 
=Time line=
 
=Time line=
  
 
Time needed to train lead stringer at JLab = 4-6 weeks?
 
Time needed to train lead stringer at JLab = 4-6 weeks?
 +
 +
 +
{| border="1"  |cellpadding="20" cellspacing="0
 +
|-
 +
| Start Date || End Date || Actually End Date || Description
 +
|-
 +
|  5/17/10  || 9/30/10 || 8/6/10 ||Sign MOU
 +
|-
 +
|  5/17/10  ||9/30/11 ||  4/12/11 || Contract recieved
 +
|-
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| 8/3/2010  || 8/3/2010 || 8/18/2011 ||Readiness Review
 +
|-
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| 9/1/10  || 10/29/10 || 6/16/2011 ||Hire and train R1 Lead Stringer
 +
|-
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| 10/1/10  || 2/28/11 || ||Hire and train 2 R1 stringers
 +
|-
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| 11/16/09  || 11/30/10 || ||Build R1 Cleanroom
 +
|-
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| 11/5/2010  ||  11/12/2011 || 8/16/2011 ||Ship 1st R1 Box From JLab to ISU
 +
|-
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| 12/17/2010  ||  2/28/2011 || ||String First R1 Chambers
 +
|-
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|2/21/2011  ||  3/31/2011 || ||Ship remaining R1 Boxes From JLab to ISU
 +
|-
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|  ||  3/31/2011 ||1/25/2012 || Fixture and 2 chambers arrive at ISU
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|-
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|  ||  7/13/12 || ||Complete 6th R1 chamber
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|-
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|4/5/13  ||  9/30/13 || ||Ship chambers, fixtures, platforms and crane to JLab
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|}
  
−
 
  
 
{| border="1"  |cellpadding="20" cellspacing="0  
 
{| border="1"  |cellpadding="20" cellspacing="0  
 
|-
 
|-
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| Start Date || End Date || Description
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| Week ||  Expected Date || Actual Date || Description
 +
|-
 +
|  0 || April 4, 2011 || 4/12/11 || Issue Construction contract
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|-
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| 4 || May 2,2011||6/13/11 ||Hire lead stringer send to JLab for training
 +
|-
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| 14  || July 11, 2011 || August 18, 2011 ||Clean room installed at ISU, Readiness Review, Hire 1st stringing team
 +
|-
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|  || || Sept. 26, 2011 ||Begin stringing R1 chamber 2
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|-
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|  || Nov, 2011 || Dec. 2, 2011  ||[https://wiki.iac.isu.edu/index.php/201112_R1ProgressRep#12.2F2.2F11 Finish guard and field wires on Region 1 Chamber 2]
 +
|-
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| 36 || Dec. 12, 2011 || ||Hire and begin training 2nd stringing team
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|-
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| 40 || Jan. 9, 2012 ||March 20, 2012 ||[https://wiki.iac.isu.edu/index.php/201203_R1ProgressRep#3.2F20.2F12 Begin stringing R1 Chamber 3 S6]
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|-
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|  ||  March 2, 2012|| Jan. 23, 2012 || [https://wiki.iac.isu.edu/index.php/201201_R1ProgressRep#1.2F23.2F12 Complete stringing  R1 C2 Sector 1]
 +
|-
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|  ||  March 14, 2012|| April 30, 2012  ||[https://wiki.iac.isu.edu/index.php/201204_R1ProgressRep#4.2F30.2F12 Begin stringing  R1 C4 Sector 5]
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|-
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| 45 ||  March 20, 2012|| March 6, 2012 ||[https://wiki.iac.isu.edu/index.php/201203_R1ProgressRep#3.2F6.2F2012 Complete stringing  and wire tests R1 C2]
 
|-
 
|-
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|  5/17/10 || 9/30/10 || Sign MOU, Contract
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|  || || March 31, 2012 ||[https://wiki.iac.isu.edu/index.php/201203_R1ProgressRep#3.2F31.2F12 First Signals from R1 C2]
 
|-
 
|-
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| 8/3/2010 || 8/3/2010 || Readiness Review
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|66 ||Aug 13, 2012 || Oct. 29, 2012 || [https://wiki.iac.isu.edu/index.php/201210_R1ProgressRep#10.2F29.2F12 Complete Stringing and wire tests R1 C3 S6] dealys due to glue in feedthroughs and more complete measurements of all wire tensions
 
|-
 
|-
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| 9/1/10 || 10/29/10 || Hire and train R1 Lead Stringer
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| 71 || Sept 16, 2012 || Jan 7, 2013 ||[https://wiki.iac.isu.edu/index.php/201301_R1ProgressRep#01.2F07.2F13 Complete Stringing and wire tests R1 C4 S5]
 
|-
 
|-
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| 11/1/10 || 2/1/11 || Hire and train 2 R1 stringers
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| || || Feb 19, 2013||[https://wiki.iac.isu.edu/index.php/201302_R1ProgressRep#2.2F21.2F13 Begin Stringing R1 C5 S2]
 
|-
 
|-
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| 11/16/09 || 11/30/10 || Build R1 Cleanroom
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| ||  ||Feb. 21, 2013||[https://wiki.iac.isu.edu/index.php/201302_R1ProgressRep#2.2F21.2F13 Begin Stringing  R1 C6 S3]
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|-
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|94 || Feb 25, 2013 || ||Complete Stringing and wire tests R1 C5
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|-
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| 97 || March 18, 2013|| ||Complete Stringing and wire tests R1 C6
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|-
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| 104  ||  April 27, 2013 || November, 2014 ||Ship chambers, fixtures, platforms and crane to JLab
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|}
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 +
 
 +
 
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{| border="1"  |cellpadding="20" cellspacing="0
 
|-
 
|-
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| 11/5/2010  ||  11/12/2011 || Ship 1st R1 Box From JLab to ISU
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| Items From JLab
 
|-
 
|-
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| 12/17/2010  ||  2/28/2011 || String First R1 Chambers
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|$2,500 Crane to mount DC (use grant to buy)
 
|-
 
|-
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|2/21/2011 ||  3/31/2011 || Ship remaining R1 Boxes From JLab to ISU
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|(Done) comes with stringing fixtures!. platform to take chamber from upper level to lower
 
|-
 
|-
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|   ||  7/13/12 || Complete 6th R1 chamber
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|JLab will order 2 Man Lifts to reach 15'
 
|-
 
|-
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|7/16/12  ||  10/1/13 || Ship chambers, fixtures, platforms and crane to JLab
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|Primary magnets for wire tension measurements will be sent by JLab (We have budgeted for power supply get one that is 15 V, 100 amp Analog better than switching)
 
|}
 
|}
  
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4 ingredients to contract
 
  
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1.) MOU: Memorandum of Understanding,
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==Task list ==
 +
 
 +
 
 +
#<s>Secure strip door</s>
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#<s>Drill holes and Mount braces for seismic....geo....something requirements</s>
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#Make door for storage area under stairs
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#<s>Get 480 V outlets installed - Currently in progress.  Estimated completion date: September 23, 2011.</s>
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#Order changing room items (bench, storage rack for clothes)
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#<s>Fix vinyl wall around fixture (need to install snaps)</s>
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#<s>Mount power supply under fixture.  Attach coil wires to power supplies (terminal ends for 1 gauge wire?  maybe from an automotive store for battery cables) </s>
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#Find/build tray for manlift (1-2 feet wide , 6 inches deep) - Grainger part number: 2NXN5.
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#<s>Test stringing machine</s>
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#Door for entrance to clean room
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#<s>Cordless phone for cleanroom (call telecommunications 4541, 4900) Beam lab #2631</s>
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#<s>Build adjustable pulley for bottom stringer</s>
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#<s>Build chain weights for stringing</s>
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#<s>Build tension weights</s>
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#Order torque wrench (in*lbs) – contact Steve Christo for part number.  More than likely this is an expensive item, might cost $200-300 from Snap-On...maybe
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#<s>Order several power strips (min 3) - may need extension cords also</s>
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#Hard door for changing room
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 +
Order
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#<s>Scale - prefer digital that can measure to 1/10th gram.  I put a link on the wiki page but I'm sure we can find this locally</s>
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#<s>Dremel engraving bit</s>
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# Order snap fasteners ~100
 +
 
 +
=Purchasing=
 +
 
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Things we need to buy and when they need to be here
  
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2.) SOW: Statement of Work
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==Equipment==
  
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3.) Detailed Schedule
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{| border="1"  |cellpadding="20" cellspacing="0
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|-
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| Arrival Date || Item to Purchase ||Sample Item || Lead Time || Budget || Cost || Done
 +
|-
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| 6/10/11 || Get Shipping Company for Clean room (??? Weight and Dimensions) ||[https://wiki.iac.isu.edu/images/a/ab/Freight_cost_Q31765_scan.pdf quote from CleanAir][https://wiki.iac.isu.edu/images/1/17/Shipper_freight_quote.pdf Quote from shipper] || || || 1925 || Yes
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|-
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| 6/13/11 || Get Mobile Crane Company for Clean room Unloading || || 1-2 days|| || ? || Yes
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|-
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| 6/20/11 || $2,500 Crane to mount DC (use grant to buy) ||[https://wiki.iac.isu.edu/images/f/f4/VestilGantry.txt Arnold Machinery] ||7-10 days || || 2882 || Yes
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|-
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| 6/20/11 || Crane chain and chain hoists (use grant to buy) ||[https://wiki.iac.isu.edu/index.php/File:Harrrington_Chainfall_Quote.pdf Empire Machinery] ||7-10 days || ||1155 || Yes
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|-
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| 8/1/11 || Clean room Quality worktable ( ?? Quantity & Size)||[http://www.terrauniversal.com/cleanroom-benches-tables/stainless-steel-benches.php Stainless Steel Top Item 1521-55] || || 1530|| 1198 || Yes
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|-
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| 8/1/11 || 2 Clean room Quality Storage Cabinet|| [http://www.terrauniversal.com/cleanroom-storage-cabinets/plastic-cabinets.php Acrylic Storage Cabinets 9011-07] || || 2800|| 911x2 || Yes
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|-
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| 8/1/11 || 2 Clean room Quality Utility carts|| [http://www.terrauniversal.com/laboratory-clean-room-carts/utility-carts.php Utility Carts 1401-46]  || || 1200|| 599x2 || Yes
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|-
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| 8/1/11 || 4  Clean room Quality chairs|| [http://www.terrauniversal.com/cleanroom-chairs/biofit-ergonomic-chairs.php Ergonomic Lab Chairs 2801-02]|| 1 week || 1000|| 366x4 || Yes
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|-
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| 8/1/11 || 1  Clean room Quality tool chest || [http://www.craftsman.com/shc/s/p_10155_12602_00910600000P Craftsman 41" 11-Drawer SS Toolbox] || || 1000|| 600|| Yes
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|-
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| 8/1/11 || 1  Clean room Quality and fire safe trash containers and bags ||[http://www.terrauniversal.com/cleanroom-equipment/clean-rooms-waste-receptacles.php Stainless Steel 24Gallon 1456-03] ||1 week || 1000|| 550 || Yes (need more bags)
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|-
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|  8/1/11 || Primary magnets power suppllies 40 V, 100 amp Analog better than switching || [http://www.matsusada.com/dc/magnetizing.html  Model REK 45-78] [http://www.testequity.com/products/2128/  $8k] || ||3000 || || Yes
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|-
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|  8/1/11 || Clean room Particle Counter  || Kanomax 3887 Handheld Laser Particle Counter. 0.3 - 5.0 microns, 3 Channels, 0.1 CFM.
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|| 3 days||2000 || 1875 || Yes
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|-
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|  8/1/11 || CAEN N1471  ||http://www.caen.it/csite/CaenProd.jsp?showLicence=false&parent=1&idmod=622 || ||6000 || 5,932|| Yes
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|-
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| 8/27/11 || Bench Scale || http://www.gramscales.com/product_info.php?cPath=25&products_id=338 || 1 week || ? || 45 || Yes
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|-
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| 1/6/12 || [http://www.aceglass.com/page.php?page=8762] Bubbler [http://www.sigmaaldrich.com/labware/labware-products.html?TablePage=12873310] or [http://www.prismresearchglass.com/magento/index.php/pilot-plant-products/gas-apparatus/prg-1365-bubbler-mineral-oil.html] or [http://www.safetyemporium.com/ILPI_Site/WebPagesUS/detail.htm?AF-0513-20]  || 10 days ||  ||  ||  ||ordered Jan 4
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|-
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| 1/6/12 ||  [http://www.ckgas.com/html/FM-1050-Series-Flowmeter.html Gas Flow Meter Tube E406 and HA valve] or [http://www.mathesongas.com/pdfs/products/Model-7300-&-7400-Proportioners-&-Mixers.pdf mixer  AL end block Buna seals E401,E201,E910 tubes] order part # MF3-6D201-E406-E201-E910  || <math>6' \times 6' \times 1 ft^3</math>||  ||  ||  ||No
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|-
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| 10/15/12 || Chain Bag [[http://www.bairstow.com/product/1-chain-hoist-bag-8x8x12-937.cfm chain bag]] || Jett chain hoist JT-101706  Call Eric at 232-8302 (Industrial Tool & Supply) || || || ||
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|}
 +
 
 +
==Consumables==
 +
 
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{| border="1"  |cellpadding="20" cellspacing="0
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|-
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| Need to Order? || Item to Purchase || Budget || Cost ||Vendor
 +
|-
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| No|| Frocks ||3000 || ||  www.wenvy.com, part number 21-639-S,M,L,XL
 +
|-
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| No || Shoe cover ||1000 || || [http://www.grainger.com/Grainger/CELLUCAP-SHOE-COVER-SKIDRES-BULK-POLYPROPYLENE-9YR58?Pid=search Grainger]  From Norco its part #ENVV3100-UNIV (1 case of 150 , $0.19 each) (LDS account Z8342)
 +
|-
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| No|| head covers  ||1000 || || [http://www.terrauniversal.com/cleanroom-equipment/vidaro-head-and-shoe-covers.php 4953-85 ]
 +
|-
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|Yes|| nitrile gloves (L, M)  ||27000 || || [http://www.grainger.com/Grainger/BEST-Disposable-Glove-2EWW9?Pid=search XLarge] [http://www.grainger.com/Grainger/BEST-Disposable-Glove-2EWW8?Pid=search Large] [http://www.grainger.com/Grainger/BEST-Disposable-Glove-2EWW7?Pid=search Medium] [http://www.grainger.com/Grainger/BEST-Disposable-Glove-2EWW6?Pid=search small]||
 +
|-
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| Ordered 2 bags 4"x4" || Lint free clean room wipes  ||4000 || || http://www.valutek.com/Cleanroom-Wipers/Cleanroom-Non-Woven-Wipers_2
 +
|-
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| Yes || tacky mats 18" x 36" ||1800 || ||  https://www.americanfloormats.com/clean-room-sticky-mats/
 +
|-
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| Yes(5) || get handle and head 18" tacky roller with replacement heads (3" core) ||500 || || http://www.cleanroomworld.com/category/index.cfm?cid=153&lvl=3 (no 3" replacement heads?)
 +
|-
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| Yes || glue applicator syringe ||400 || ||  Weller A10LL Air Operated Luer Lok Tip Syringes, 10CC, 15/Pkg
 +
|-
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| Yes || glue applicator needle || || ||  Grainger 18 and 20 GA with 1 inch cannula (Item #15VZV5 and #5FVH8)
 +
|-
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| Yes || 1mm box chain || ? || ||  http://www.walmart.com/ip/1mm-Sterling-Silver-Diagonal-Box-Cut-Italian-Chain-Necklace-16/14892573
  
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4.) Sole Source Justification
+
|-
 +
| Yes || Epon 829 Resin (3 year shelf life) || 1300 || || E.V. Roberts, 18027 Bishop Avenue, Carson, CA 90746-4019, United States, Phone +1 310-204-6159, Toll Free: +1 800-374-3872, Fax: +1 310-202-7247, http://www.evroberts.com/
 +
|-
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| Yes || Versamid 140 Hardener (?? shelf life) || 800 || ||
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|-
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| Yes || Staticide - anti-static cleaner || ? || || http://www.aclstaticide.com/01/index.html
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|-
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| Yes || 0.001" Aluminized Mylar || 2640 || || 150 ft Sheldahl Inc at 1-507-663-8000, part# 146468 (width of 48")
 +
|-
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| Yes || Foam Rubber Gasket || ? || || http://www.mcmaster.com/#93625k54/=eqcihp
 +
|-
 +
| yes || plastic plugs for feedthrough crimppin boots || ? || || Value Plastics, part #PIP210-2, http://www.valueplastics.com, 970-267-5200
 +
|-
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| ? || HVTB -> ADB Round-to-Flat Signal Cable || ? || 252.23 + S&H || Mouser
 +
<br /> http://www.mouser.com/ProductDetail/Amphenol-Spectra-Strip/169-2832-034/?qs=sGAEpiMZZMsJiFh04Lj2rryUPLqBgDClQGXI9Q%252bWsaI%3d
 +
<br /> Mouser Part #: 523-169-2832-034
 +
<br /> Manufacturer Part #: 169-2832-034
 +
<br /> Manufacturer: Amphenol Spectra-Strip
 +
|-
 +
| Yes || Stringing needles (44 thousands or 1.1 mm in diameter) ||  || ||
 +
|-
 +
| 2/28/13 || Scissor lift replacement battery (90 Ah, (L:W:H=30.5:16.5:19.5 cm)[http://global.rakuten.com/en/store/aida-sangyo/item/10002454/?s-id=borderless_recommend_item_en]
 +
||  || || || ||
 +
|}
  
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5.) Contact person:  Pre Award Dave Harris? Approve Terms and conditions
+
=CLAS 10,000=
 +
Definition
  
 +
{| class="wikitable"
 +
|-
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! rowspan="2" | Class
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| colspan="6" align="center" | '''maximum particles/m³'''
 +
! rowspan="2" | FED STD 209E<br>equivalent
 +
|-
 +
! ≥0.1&nbsp;µm
 +
! ≥0.2&nbsp;µm
 +
! ≥0.3&nbsp;µm
 +
! ≥0.5&nbsp;µm
 +
! ≥1&nbsp;µm
 +
! ≥5&nbsp;µm
 +
|-
 +
! ISO 7
 +
| align="right" | &nbsp;
 +
| align="right" | &nbsp;
 +
| align="right" | &nbsp;
 +
| align="right" | 352,000
 +
| align="right" | 83,200
 +
| align="right" | 2,930
 +
| align="center"| Class 10,000
 +
|-
 +
! ISO 9
 +
| align="right" | &nbsp;
 +
| align="right" | &nbsp;
 +
| align="right" | &nbsp;
 +
| align="right" | 35,200,000
 +
| align="right" | 8,320,000
 +
| align="right" | 293,000
 +
| align="center"| Room air
 +
|}
  
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University gets a Purchase Req: covers SOW, Terms & Condition, & Schedule.
+
==ISU Clean room Environment monitors==
  
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We respond with proposal containing exceptions and work plan.  1 team of 2 stringers can do a wire in 6 minutes.  Stringers spend 1/2 of their time stringing the rest of time preparing , Q&A, ...  JLab expects a crew of 5 people.  If we think we can't make the schedule we need to ask for more people.  Stringers hourly rate ($30-$35/hr with overhead and benefits). Lead stringer is +$5/hr more.
+
Temperature
  
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Then they respond with contract.
+
Temp1 == Top of clean room middle.
  
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"Cost Reimbursable" contract, University not liable if we go over budget
+
Temp2 == South wall bottom
  
 +
Temp3 == South wall top
  
−
Can we survey to 50 microns? No. 200 microns.
 
  
−
=ISU Clean Room Facility=
+
http://hal.iac.isu.edu/cacti-graphs/graph_6.html
  
−
[[File:BasementRenovationDrawing_6-16-10.pdf]]
+
The ISU clean rooom is 20' x 21' x 15'  = 6300 ft^3 = 178 m^3
  
−
==6/18/09 ==
+
[[PhysicsCleanRoomParticleCountLog]]
  
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The clean room needs space for instrumenting.  The DC will be layed horizontal so PC cards can be mounted and tested.
+
[[Clean_Room_Particle_Counter_User_Directions]]
  
−
==6/24/10==
 
  
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11' = hook height in stringing clean room
 
  
−
There are 2 stringing strong back and 6 shipping strong backs.  They bolt on separate sides of the chambers.
+
==Environmental control needed==
−
<pre>
 
−
Idea:  Instrument the chamber on the ledge above the squash court. 
 
−
Put a lift on the pole which we can use to turn the DC from its standing (stringing) position to
 
−
its horizontal (instrumentation) position then "swing" it over onto the squash court ledge.
 
−
</pre>
 
  
−
No Halogen lighting.
+
Temperature control constraint is <math>\pm 2\% :\frac{7\% \;\;change\;\;in \;\;tension}{6 \;\;Degree \;\; Farenheit}</math>
  
−
Think about air conditioning.  People are space heaters.
+
The wire tension can fluctuate no more than 5% from the mean wire tension specification.
  
−
Have shoes specific for clean room instead of booties.
+
This means that the temperature should be controlled to within +/- 2 Degrees Ferenheit
  
−
Electron microscope may need to be used to inspect wire quality. Peel off 3 feet off each spool , mount 6  wire samples on holder, look at wire with microscope measure diameter.  Can ISU do this testing?
+
Humidity control: 55 % or less
  
  
−
Below is a preliminary schematic of the floor design of ISU's clean room that will be built at the IAC.
+
[[File:KashyHallBTempReport_2-09.doc]][[File:KashyHallBTempReport_2-09.pdf]]
  
−
[[Image:Clean_Room_V3.jpg | 400 px]]
 
  
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The dimensions of the clean room itself will be:
+
Online Room Temp monitors
  
−
13 high
+
http://hal.iac.isu.edu/cacti-graphs/graph_6.html
−
26' deep
 
−
20' wide
 
  
 +
IP address of the above nagios monitor server known as hal  is :
 +
:134.50.3.3
  
 +
From daq3 you can get to the hal VPN server using the SSH command
  
−
Dimensions of door from loading dock to clean room
+
ssh -Y -L 5900:localhost:5900 foretony@134.50.3.3
−
65" wide
 
−
90" high
 
  
−
The doors into and out of the different areas will be 9'8" high in order to help facilitate the transport of equipment into and out of the different areas of the clean room.
+
===Sept 11 power outage recovery===
  
−
The desks in the clean room will act as a table top area to place tools and other equipment currently in use during the construction of the wire chambers.  Also, they will serve as a place to perform any calculations or other miscellaneous work that may come up while construction is ongoing.
+
[[File:HVAC_TempLog_9-11-11.png | 200 px]]
  
−
The cabinets on the other side of the room will be a permanent storage area for all tools and equipment not currently in use at the two work stations.
+
==Cleaning Procedures==
  
−
The path in between the workstations and the cabinets will be kept clear of all obstructions in order facilitate the movement of equipment into and out of the room as needed.
+
=R1 Construction preparations=
  
−
The two workstations will be where the wire chambers are constructed.  The workstations will have a standing/sitting apparatus built around them in order to help those who are stringing the wire chambers to have better access to the chambers from above.  Schematics for these will be uploaded as they are designed.
+
== Wire Tension==
  
−
The heavy equipment storage area will be where all the heavier equipment (i.e. dollies, fabrication materials, etc...) that will not fit, or does not need to be stored in the individual work station cabinets will be kept.
+
A Helmholtz coil is used to test the wire tension
  
−
===Staging & Dressing Area===
+
CLAS6 R1 wire tension measurement technique NIM article
  
−
Attached to the clean room, and also kept in a class 10,000 environment, will be the staging area that will be used to transport the wire chambers and other materials into and out of the clean room environment, and will also help facilitate entrance into the dressing and prep area that people will use before entering the clean room itself.
+
[[File:CLAS6_DCWireTensMeasTech_1996.pdf]]
  
−
[[Image:Staging_Area_&_Dressing_Area_V3.jpg | 400 px]]
+
Below is a write up from BaBar
  
−
Staging Area  Dressing Area
+
[[File:Device2MeasureWireTension_Covery_BaBarReportTNDC-96-39_1996.pdf]]
−
 
−
15.5' high    15.5' high
 
−
  08' deep      06' deep
 
−
  11' wide      09' wide
 
  
−
The dressing area will be where the cleaning supply cabinet will be kept.  This is because when cleaning the clean room one will start at the back and work their way forward.  This is to prevent cross contamination in the cleaning process from a person treading upon previously cleaned area.
+
[[File:ODU_WireTensionMeasurements_10-2009.pdf]]
  
−
Inside the cleaning supply cabinet will be where the cleaning chemicals and other supplies are stored for cleaning of the clean room.  A list of supplies and cleaning schedule will be uploaded in the near future.
+
An excel spreadsheet to calculate fields for such coils is given at
  
−
==Ceiling Support, HEPA Filters, & Lighting==
+
http://clasweb.jlab.org/drawings/CLAS12/DRIFT_CHAMBERS/Helmholz_calculator.xls
  
−
[[Image:Clean_Room_Aerial.jpg | 400 px]]
+
The formula is from Physics 10X but more importantly it contains wire parameters useful for the calculation
  
−
The clean room will be suspended from ceiling at the supports shown above.  The ceiling tiles will fit snugly, but will be removable if need be so that an overhead crane can be lowered into the room to pick up and move heavy equipment if need be.
+
==Construction First R1 Chamber at JLab==
  
−
The HEPA filters will cover roughly ~10-12% of the ceiling in order to maintain a Class 10,000 environment.  The filters will move approximately 35-40 air volumes per hour.
+
As measured on the spit in the JLab clean room on April 28, 2011.  The narrowest part of the R1 detector was 78".  A door should accomodate 78" + box.
  
−
Overhead lighting will be suspended from the frame in order to provide sufficient lighting for the room occupants to work within.
+
The Tip of the stringing fixture was 13' 5" high from the floor.
  
−
===HEPA Filters===
 
  
−
Due to the cost of HEPA filters, a multistage filtration system will be used with the HEPA filters at the end of the system in order to insure the longevity of the HEPA filters.
+
{| border="1"  |cellpadding="20" cellspacing="0
 +
|-
 +
|[[File:R1CH1_4-28-2011_1.jpg | 200 px]] || [[File:R1CH1_4-28-2011_2.jpg | 200 px]]
 +
|-
 +
|[[File:R1CH1_4-28-2011_3.jpg | 200 px]] || [[File:R1CH1_4-28-2011_4.jpg | 200 px]]
 +
|-
 +
|[[File:R1CH1_4-28-2011_5.jpg | 200 px]] || [[File:R1CH1_4-28-2011_6.jpg | 200 px]]
 +
|}
  
−
More information will be forthcoming on this in the future.
+
=CLAS12 R1 SOW=
  
−
==ODU's Clean Room==
+
[[CLAS12_R1_SOW]]
  
−
ODU's current clean room size:
 
  
−
20 ' high
+
=Readiness Review=
−
20 ' Width
 
−
40 ' Length
 
  
−
CLAS 10,00 clean rooms
+
[[CLAS12R1ReadinessReview2011]]
  
 +
=Region 1 Q &A =
  
−
[[File:ODU_CleanRoomDesign.pdf]]
+
The voltage ratio should be S:F:G=2:1:5/7 (1500:-750:535).
  
−
==Environmental control needed==
+
==Wire quality==
  
−
Temperature control constraint is <math>\pm 2\% :\frac{7\% \;\;change\;\;in \;\;tension}{6 \;\;Degree \;\; Farenheit}</math>
+
The visual inspection of the drift chamber wires after stringing led to the discovery of a variation of the wire appearance.  There isn't a clear indication if this variation has an impact on the wire quality
  
−
The wire tension can fluctuate no more than 5% from the mean wire tension specification.
+
[[CLAS12R1_WireQualPic]]
  
−
This means that the temperature should be controlled to within +/- 2 Degrees Ferenheit
+
==Particle Counter==
  
−
Humidity control: 55 % or less
+
[[File:PartCounter_Cert_112912.pdf]]
  
 +
==Cosmic Test Stand==
  
−
[[File:KashyHallBTempReport_2-09.doc]][[File:KashyHallBTempReport_2-09.pdf]]
+
[[CLAS12R1_CosmicTestStand]]
  
−
==Cleaning Procedures==
 
  
−
=R1 Construction preparations=
+
==ADB crate==
  
−
== Wire Tension==
+
[[ADBcrate_CLAS12]]
  
−
A Helmholtz coil is used to test the wire tension
+
==R1S1==
  
−
Below is a write up from BaBar
+
[[CLAS12_R1_S1_QA]]
  
−
[[File:Device2MeasureWireTension_Covery_BaBarReportTNDC-96-39_1996.pdf]]
+
==R1S2==
  
−
[[File:ODU_WireTensionMeasurements_10-2009.pdf]]
+
[[CLAS12_R1_S2_QA]]
  
−
An excel spreadsheet to calculate fields for such coils is given at
+
==R1S3==
  
−
http://clasweb.jlab.org/drawings/CLAS12/DRIFT_CHAMBERS/Helmholz_calculator.xls
+
[[CLAS12_R1_S3_QA]]
  
−
The formula is from Physics 10X but more importantly it contains wire parameters useful for the calculation
+
==R1S5==
  
−
==Discussion items==
+
[[CLAS12_R1_S5_QA]]
  
 +
==R1S6==
  
 +
[[CLAS12_R1_S6_QA]]
  
−
1.) Budget
+
= Vendors=
  
−
*JLab to ISU travel for JLab personnel to inspect operations
+
http://www.cleanairproducts.com/
−
* shipping container for R1 chambers
 
  
−
2.) Clean room
+
==Shipping==
  
−
cost =
+
Navis
  
−
assume we copy the ODU clean room
+
http://www.gonavis.com/about/ut1032
  
−
Using IAC conference room space,  need to remove carpet and paint floor.
+
Artech
  
 +
http://artechseattle.com
  
−
3.) hiring timeline
+
Artex
  
−
9/08  NSF proposal submission
+
http://www.artexfas.com/services/
  
−
4.) stringing platform and DC stringing support arm
+
Fed Ex white glove
  
−
5.) Manpower
+
http://customcritical.fedex.com/us/services/white-glove/default.shtml
  
−
6.) MOU to support post doc request or faculty release time
+
US art
  
−
7.) Stringing equipment
+
http://www.usart.com/Pages/Home.html
  
−
a.) crimping tool
+
Atelier 4 (trucks are 92" wide x 120 " long x 98")
  
−
b.) glue
+
climate controlled trailer exclusive shipping
  
−
c.) wire or feedthroughs?
+
http://www.atelier4.com
  
−
d.) wire tension measurement (PC, Magnets, associated electronics
+
http://www.atelier4.com
  
 +
=References=
  
  
 +
==CLAS6 NIM Drift Chamber paper==
  
 +
[[File:NIM_A_449_2000_pg81.pdf]]
  
−
A few pictures ff the R1 fullo size proto type from my JLab visit on 9/16/07.  It is about 6 feet tall.
+
==[[CLAS12_R1_Prototype_2-20-08]]==
−
[[CLAS12_R1_Prototype_9-16-07]]
 
  
−
The air actuated crimping tool:
 
  
−
[[Image:Air_Actuated_R1_CrimpingTool.jpg | 200 px]]
+
==JLab Drawing repository==
  
 +
https://userweb.jlab.org/~aellis/R1_Fixture/
  
−
=CLAS12_R1_Progress_Reports=
+
==R1 Fixture Procedures==
−
[[CLAS12_R1_Progress_Reports]]
 
  
 +
[[File:CLAS12_R1_FixturProcedures.doc]]
  
−
[[CLAS12_R1_Prototype_2-20-08]]
+
Referenced drawings
  
 +
[[File:Sheet1_B00000-07-04-3200.pdf]][[File:Sheet2_B00000-07-04-3200.pdf]][[File:Sheet3_B00000-07-04-3200.pdf]]
  
−
= Vendors=
+
[[File:B00000-07-04-4400.pdf]]
  
−
http://www.cleanairproducts.com/
+
==Stringing Manual==
  
−
=References=
 
  
 
Stringing Manual
 
Stringing Manual
  
 
[[Media:R1_CLAS12_StringingManual_2008.doc]] [[Media:R1_CLAS12_StringingManual_2008.pdf]]
 
[[Media:R1_CLAS12_StringingManual_2008.doc]] [[Media:R1_CLAS12_StringingManual_2008.pdf]]
 +
 +
 +
[[File:2012CLAS12R1AmmendedStringingManual.pdf]]
  
 
http://www.jlab.org/~jacobsg/
 
http://www.jlab.org/~jacobsg/
  
−
= JLab job posting for lead stringer=
+
==Gas flow operation==
 +
 
 +
Standard operating pressure is 0.05" inches of water.
 +
 
 +
the bubbler exhaust tip should barely touch the oil enough to cause bubbles.
 +
 
 +
 
 +
 
 +
http://clasweb.jlab.org/drawings/CLAS12/DRIFT_CHAMBERS/R1_Chamber_Assembly_Procedure.doc
  
−
CLAS Wire Chamber Technician
+
http://clasweb.jlab.org/drawings/CLAS12/DRIFT_CHAMBERS/R1_End_Plate_Assembly_Procedure_RevA.doc
−
Requisition Number 10534
 
−
Job Category Technician/Drafter
 
−
Percentage of Travel No Travel
 
−
Job Responsibilities (TERM POSITION ENDING TWO YEARS FROM HIRE DATE)
 
  
−
DATE POSTED: FEBRUARY 11, 2010
 
  
−
SALARY RANGE: $45,500 - $61,900 (TD II)
+
==Project factoids==
  
−
DUTIES:
+
[[CLAS12DC_ProjFactoids]]
−
Technician will be responsible for the fabrication of very large and very precise particle detection units called "wire chambers" in support of the CLAS 12 GEV project. These "wire chambers" will be built in a clean room by teams. Incumbent is expected to lead these fabrication teams. Specifically, individual will be responsible for leading a team in building these detectors and maintaining strict quality controls. Will be required to learn all aspects of detector fabrication, stringing and testing. Will fabricate and string the detectors maintaining high precision and quality. Will receive, clean and inspect parts for compliance with technical specifications.
 
−
Experience/Education Required MINIMUM QUALIFICATIONS:
 
−
Associates Degree plus 3 years of applicable experience or equivalent combination of education and relevant experience. Knowledge of basic electricity and/or electronics required. Knowledge and experience in the proper use of hand and power tools as well as ability to follow written procedures in operating and technical manuals also required. Basic computer skills such as Excel and/or CAD experience is a plus. Ability to work in a team environment. A background in quality control as well as experience supervising and motivating others in a team setting preferred.
 
  
−
Physical Requirements:
+
[[Old_CLAS12]]
−
- Pass all medical requirements for the following qualifications: Rad Worker, ODH, Crane Operator, Forklift Operator, Aerial Platform Operator, etc.
 
−
- Cannot have a fear of heights or confined spaces.
 
−
- Must be able to climb stairs, ladders, vertical escape ladders and work in close quarters with others.
 
−
- Steady hands and eyes for delicate close-up work.
 
  
 
[http://wiki.iac.isu.edu/index.php/Hall_B] Go Back to [[Hall_B]]
 
[http://wiki.iac.isu.edu/index.php/Hall_B] Go Back to [[Hall_B]]

Latest revision as of 22:29, 27 February 2017

08172012 TheTeam.png



CLAS12_R1_Progress_Reports

PR:

A particle detector build by ISU was successfully commissioned last month at the Department of Energy's Jefferson Lab facility in Newport News, Va.


CLAS12_R1_Progress_Reports

Time line

Time needed to train lead stringer at JLab = 4-6 weeks?


Start Date End Date Actually End Date Description
5/17/10 9/30/10 8/6/10 Sign MOU
5/17/10 9/30/11 4/12/11 Contract recieved
8/3/2010 8/3/2010 8/18/2011 Readiness Review
9/1/10 10/29/10 6/16/2011 Hire and train R1 Lead Stringer
10/1/10 2/28/11 Hire and train 2 R1 stringers
11/16/09 11/30/10 Build R1 Cleanroom
11/5/2010 11/12/2011 8/16/2011 Ship 1st R1 Box From JLab to ISU
12/17/2010 2/28/2011 String First R1 Chambers
2/21/2011 3/31/2011 Ship remaining R1 Boxes From JLab to ISU
3/31/2011 1/25/2012 Fixture and 2 chambers arrive at ISU
7/13/12 Complete 6th R1 chamber
4/5/13 9/30/13 Ship chambers, fixtures, platforms and crane to JLab


Week Expected Date Actual Date Description
0 April 4, 2011 4/12/11 Issue Construction contract
4 May 2,2011 6/13/11 Hire lead stringer send to JLab for training
14 July 11, 2011 August 18, 2011 Clean room installed at ISU, Readiness Review, Hire 1st stringing team
Sept. 26, 2011 Begin stringing R1 chamber 2
Nov, 2011 Dec. 2, 2011 Finish guard and field wires on Region 1 Chamber 2
36 Dec. 12, 2011 Hire and begin training 2nd stringing team
40 Jan. 9, 2012 March 20, 2012 Begin stringing R1 Chamber 3 S6
March 2, 2012 Jan. 23, 2012 Complete stringing R1 C2 Sector 1
March 14, 2012 April 30, 2012 Begin stringing R1 C4 Sector 5
45 March 20, 2012 March 6, 2012 Complete stringing and wire tests R1 C2
March 31, 2012 First Signals from R1 C2
66 Aug 13, 2012 Oct. 29, 2012 Complete Stringing and wire tests R1 C3 S6 dealys due to glue in feedthroughs and more complete measurements of all wire tensions
71 Sept 16, 2012 Jan 7, 2013 Complete Stringing and wire tests R1 C4 S5
Feb 19, 2013 Begin Stringing R1 C5 S2
Feb. 21, 2013 Begin Stringing R1 C6 S3
94 Feb 25, 2013 Complete Stringing and wire tests R1 C5
97 March 18, 2013 Complete Stringing and wire tests R1 C6
104 April 27, 2013 November, 2014 Ship chambers, fixtures, platforms and crane to JLab


Items From JLab
$2,500 Crane to mount DC (use grant to buy)
(Done) comes with stringing fixtures!. platform to take chamber from upper level to lower
JLab will order 2 Man Lifts to reach 15'
Primary magnets for wire tension measurements will be sent by JLab (We have budgeted for power supply get one that is 15 V, 100 amp Analog better than switching)


Task list

  1. Secure strip door
  2. Drill holes and Mount braces for seismic....geo....something requirements
  3. Make door for storage area under stairs
  4. Get 480 V outlets installed - Currently in progress. Estimated completion date: September 23, 2011.
  5. Order changing room items (bench, storage rack for clothes)
  6. Fix vinyl wall around fixture (need to install snaps)
  7. Mount power supply under fixture. Attach coil wires to power supplies (terminal ends for 1 gauge wire? maybe from an automotive store for battery cables)
  8. Find/build tray for manlift (1-2 feet wide , 6 inches deep) - Grainger part number: 2NXN5.
  9. Test stringing machine
  10. Door for entrance to clean room
  11. Cordless phone for cleanroom (call telecommunications 4541, 4900) Beam lab #2631
  12. Build adjustable pulley for bottom stringer
  13. Build chain weights for stringing
  14. Build tension weights
  15. Order torque wrench (in*lbs) – contact Steve Christo for part number. More than likely this is an expensive item, might cost $200-300 from Snap-On...maybe
  16. Order several power strips (min 3) - may need extension cords also
  17. Hard door for changing room

Order

  1. Scale - prefer digital that can measure to 1/10th gram. I put a link on the wiki page but I'm sure we can find this locally
  2. Dremel engraving bit
  3. Order snap fasteners ~100

Purchasing

Things we need to buy and when they need to be here

Equipment

Arrival Date Item to Purchase Sample Item Lead Time Budget Cost Done
6/10/11 Get Shipping Company for Clean room (??? Weight and Dimensions) quote from CleanAirQuote from shipper 1925 Yes
6/13/11 Get Mobile Crane Company for Clean room Unloading 1-2 days ? Yes
6/20/11 $2,500 Crane to mount DC (use grant to buy) Arnold Machinery 7-10 days 2882 Yes
6/20/11 Crane chain and chain hoists (use grant to buy) Empire Machinery 7-10 days 1155 Yes
8/1/11 Clean room Quality worktable ( ?? Quantity & Size) Stainless Steel Top Item 1521-55 1530 1198 Yes
8/1/11 2 Clean room Quality Storage Cabinet Acrylic Storage Cabinets 9011-07 2800 911x2 Yes
8/1/11 2 Clean room Quality Utility carts Utility Carts 1401-46 1200 599x2 Yes
8/1/11 4 Clean room Quality chairs Ergonomic Lab Chairs 2801-02 1 week 1000 366x4 Yes
8/1/11 1 Clean room Quality tool chest Craftsman 41" 11-Drawer SS Toolbox 1000 600 Yes
8/1/11 1 Clean room Quality and fire safe trash containers and bags Stainless Steel 24Gallon 1456-03 1 week 1000 550 Yes (need more bags)
8/1/11 Primary magnets power suppllies 40 V, 100 amp Analog better than switching Model REK 45-78 $8k 3000 Yes
8/1/11 Clean room Particle Counter Kanomax 3887 Handheld Laser Particle Counter. 0.3 - 5.0 microns, 3 Channels, 0.1 CFM. 3 days 2000 1875 Yes
8/1/11 CAEN N1471 http://www.caen.it/csite/CaenProd.jsp?showLicence=false&parent=1&idmod=622 6000 5,932 Yes
8/27/11 Bench Scale http://www.gramscales.com/product_info.php?cPath=25&products_id=338 1 week ? 45 Yes
1/6/12 [1] Bubbler [2] or [3] or [4] 10 days ordered Jan 4
1/6/12 Gas Flow Meter Tube E406 and HA valve or mixer AL end block Buna seals E401,E201,E910 tubes order part # MF3-6D201-E406-E201-E910 [math]6' \times 6' \times 1 ft^3[/math] No
10/15/12 Chain Bag [chain bag] Jett chain hoist JT-101706 Call Eric at 232-8302 (Industrial Tool & Supply)

Consumables

Need to Order? Item to Purchase Budget Cost Vendor
No Frocks 3000 www.wenvy.com, part number 21-639-S,M,L,XL
No Shoe cover 1000 Grainger From Norco its part #ENVV3100-UNIV (1 case of 150 , $0.19 each) (LDS account Z8342)
No head covers 1000 4953-85
Yes nitrile gloves (L, M) 27000 XLarge Large Medium small
Ordered 2 bags 4"x4" Lint free clean room wipes 4000 http://www.valutek.com/Cleanroom-Wipers/Cleanroom-Non-Woven-Wipers_2
Yes tacky mats 18" x 36" 1800 https://www.americanfloormats.com/clean-room-sticky-mats/
Yes(5) get handle and head 18" tacky roller with replacement heads (3" core) 500 http://www.cleanroomworld.com/category/index.cfm?cid=153&lvl=3 (no 3" replacement heads?)
Yes glue applicator syringe 400 Weller A10LL Air Operated Luer Lok Tip Syringes, 10CC, 15/Pkg
Yes glue applicator needle Grainger 18 and 20 GA with 1 inch cannula (Item #15VZV5 and #5FVH8)
Yes 1mm box chain ? http://www.walmart.com/ip/1mm-Sterling-Silver-Diagonal-Box-Cut-Italian-Chain-Necklace-16/14892573
Yes Epon 829 Resin (3 year shelf life) 1300 E.V. Roberts, 18027 Bishop Avenue, Carson, CA 90746-4019, United States, Phone +1 310-204-6159, Toll Free: +1 800-374-3872, Fax: +1 310-202-7247, http://www.evroberts.com/
Yes Versamid 140 Hardener (?? shelf life) 800
Yes Staticide - anti-static cleaner ? http://www.aclstaticide.com/01/index.html
Yes 0.001" Aluminized Mylar 2640 150 ft Sheldahl Inc at 1-507-663-8000, part# 146468 (width of 48")
Yes Foam Rubber Gasket ? http://www.mcmaster.com/#93625k54/=eqcihp
yes plastic plugs for feedthrough crimppin boots ? Value Plastics, part #PIP210-2, http://www.valueplastics.com, 970-267-5200
? HVTB -> ADB Round-to-Flat Signal Cable ? 252.23 + S&H Mouser


http://www.mouser.com/ProductDetail/Amphenol-Spectra-Strip/169-2832-034/?qs=sGAEpiMZZMsJiFh04Lj2rryUPLqBgDClQGXI9Q%252bWsaI%3d
Mouser Part #: 523-169-2832-034
Manufacturer Part #: 169-2832-034
Manufacturer: Amphenol Spectra-Strip

Yes Stringing needles (44 thousands or 1.1 mm in diameter)
2/28/13 Scissor lift replacement battery (90 Ah, (L:W:H=30.5:16.5:19.5 cm)[5]

CLAS 10,000

Definition

Class maximum particles/m³ FED STD 209E
equivalent
≥0.1 µm ≥0.2 µm ≥0.3 µm ≥0.5 µm ≥1 µm ≥5 µm
ISO 7       352,000 83,200 2,930 Class 10,000
ISO 9       35,200,000 8,320,000 293,000 Room air

ISU Clean room Environment monitors

Temperature

Temp1 == Top of clean room middle.

Temp2 == South wall bottom

Temp3 == South wall top


http://hal.iac.isu.edu/cacti-graphs/graph_6.html

The ISU clean rooom is 20' x 21' x 15' = 6300 ft^3 = 178 m^3

PhysicsCleanRoomParticleCountLog

Clean_Room_Particle_Counter_User_Directions


Environmental control needed

Temperature control constraint is [math]\pm 2\% :\frac{7\% \;\;change\;\;in \;\;tension}{6 \;\;Degree \;\; Farenheit}[/math]

The wire tension can fluctuate no more than 5% from the mean wire tension specification.

This means that the temperature should be controlled to within +/- 2 Degrees Ferenheit

Humidity control: 55 % or less


File:KashyHallBTempReport 2-09.docFile:KashyHallBTempReport 2-09.pdf


Online Room Temp monitors

http://hal.iac.isu.edu/cacti-graphs/graph_6.html

IP address of the above nagios monitor server known as hal is :

134.50.3.3

From daq3 you can get to the hal VPN server using the SSH command

ssh -Y -L 5900:localhost:5900 foretony@134.50.3.3

Sept 11 power outage recovery

HVAC TempLog 9-11-11.png

Cleaning Procedures

R1 Construction preparations

Wire Tension

A Helmholtz coil is used to test the wire tension

CLAS6 R1 wire tension measurement technique NIM article

File:CLAS6 DCWireTensMeasTech 1996.pdf

Below is a write up from BaBar

File:Device2MeasureWireTension Covery BaBarReportTNDC-96-39 1996.pdf

File:ODU WireTensionMeasurements 10-2009.pdf

An excel spreadsheet to calculate fields for such coils is given at

http://clasweb.jlab.org/drawings/CLAS12/DRIFT_CHAMBERS/Helmholz_calculator.xls

The formula is from Physics 10X but more importantly it contains wire parameters useful for the calculation

Construction First R1 Chamber at JLab

As measured on the spit in the JLab clean room on April 28, 2011. The narrowest part of the R1 detector was 78". A door should accomodate 78" + box.

The Tip of the stringing fixture was 13' 5" high from the floor.


R1CH1 4-28-2011 1.jpg R1CH1 4-28-2011 2.jpg
R1CH1 4-28-2011 3.jpg R1CH1 4-28-2011 4.jpg
R1CH1 4-28-2011 5.jpg R1CH1 4-28-2011 6.jpg

CLAS12 R1 SOW

CLAS12_R1_SOW


Readiness Review

CLAS12R1ReadinessReview2011

Region 1 Q &A

The voltage ratio should be S:F:G=2:1:5/7 (1500:-750:535).

Wire quality

The visual inspection of the drift chamber wires after stringing led to the discovery of a variation of the wire appearance. There isn't a clear indication if this variation has an impact on the wire quality

CLAS12R1_WireQualPic

Particle Counter

File:PartCounter Cert 112912.pdf

Cosmic Test Stand

CLAS12R1_CosmicTestStand


ADB crate

ADBcrate_CLAS12

R1S1

CLAS12_R1_S1_QA

R1S2

CLAS12_R1_S2_QA

R1S3

CLAS12_R1_S3_QA

R1S5

CLAS12_R1_S5_QA

R1S6

CLAS12_R1_S6_QA

Vendors

http://www.cleanairproducts.com/

Shipping

Navis

http://www.gonavis.com/about/ut1032

Artech

http://artechseattle.com

Artex

http://www.artexfas.com/services/

Fed Ex white glove

http://customcritical.fedex.com/us/services/white-glove/default.shtml

US art

http://www.usart.com/Pages/Home.html

Atelier 4 (trucks are 92" wide x 120 " long x 98")

climate controlled trailer exclusive shipping

http://www.atelier4.com

http://www.atelier4.com

References

CLAS6 NIM Drift Chamber paper

File:NIM A 449 2000 pg81.pdf

CLAS12_R1_Prototype_2-20-08

JLab Drawing repository

https://userweb.jlab.org/~aellis/R1_Fixture/

R1 Fixture Procedures

File:CLAS12 R1 FixturProcedures.doc

Referenced drawings

File:Sheet1 B00000-07-04-3200.pdfFile:Sheet2 B00000-07-04-3200.pdfFile:Sheet3 B00000-07-04-3200.pdf

File:B00000-07-04-4400.pdf

Stringing Manual

Stringing Manual

Media:R1_CLAS12_StringingManual_2008.doc Media:R1_CLAS12_StringingManual_2008.pdf


File:2012CLAS12R1AmmendedStringingManual.pdf

http://www.jlab.org/~jacobsg/

Gas flow operation

Standard operating pressure is 0.05" inches of water.

the bubbler exhaust tip should barely touch the oil enough to cause bubbles.


http://clasweb.jlab.org/drawings/CLAS12/DRIFT_CHAMBERS/R1_Chamber_Assembly_Procedure.doc

http://clasweb.jlab.org/drawings/CLAS12/DRIFT_CHAMBERS/R1_End_Plate_Assembly_Procedure_RevA.doc


Project factoids

CLAS12DC_ProjFactoids

Old_CLAS12

[6] Go Back to Hall_B

Retrieved from "https://wiki.iac.isu.edu/index.php?title=CLAS12_R1&oldid=112977"