CLAS12 R1
The Field wires look like Idaho icicles when you turn off the lights to the clean room and shine a light through the entrance window
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 | |
| 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 | 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 | Begin stringing R1 Chamber 3 | |
| 45 | March 20, 2012 | Complete stringing and wire tests R1 C2 | |
| 66 | Aug 13, 2012 | Complete Stringing and wire tests R1 C3 | |
| 71 | Sept 16, 2012 | Complete Stringing and wire tests R1 C4 | |
| 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 | Ship chambers, fixtures, platforms and crane to JLab |
4 ingredients to contract
1.) MOU: Memorandum of Understanding,
2.) SOW: Statement of Work
3.) Detailed Schedule
4.) Sole Source Justification
5.) Contact person: Pre Award Dave Harris? Approve Terms and conditions
University gets a Purchase Req: covers SOW, Terms & Condition, & Schedule.
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.
Then they respond with contract.
"Cost Reimbursable" contract, University not liable if we go over budget
Can we survey to 50 microns? No. 200 microns.
| 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
Secure strip doorDrill holes and Mount braces for seismic....geo....something requirements- Make door for storage area under stairs
Get 480 V outlets installed - Currently in progress. Estimated completion date: September 23, 2011.- Order changing room items (bench, storage rack for clothes)
Fix vinyl wall around fixture (need to install snaps)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)- Find/build tray for manlift (1-2 feet wide , 6 inches deep) - Grainger part number: 2NXN5.
Test stringing machine- Door for entrance to clean room
Cordless phone for cleanroom (call telecommunications 4541, 4900) Beam lab #2631Build adjustable pulley for bottom stringerBuild chain weights for stringingBuild tension weights- 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
Order several power strips (min 3) - may need extension cords also- Hard door for changing room
Order
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 locallyDremel engraving bit- 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 | Bubbler | No | ||||
| 1/6/12 | Gas Flow Meter http://www.ckgas.com/html/FMC%20P22_23_24.htm | No |
Consumables
| Need to Order? | Item to Purchase | Budget | Cost | Vendor | |
| No | Frocks | 3000 | |||
| 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 | ||
| Yes (5 bags) | Lint free clean room wipes | 4000 | http://www.valutek.com/Cleanroom-Wipers/Cleanroom-Non-Woven-Wipers_2 | ||
| Yes (get 20 pack with 30) | tacky mats | 1800 | http://www.pro-tect.com/Pro-Tect-Catalog/Surface-Protection/Tacky-Mats.html | ||
| 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 | http://www.hobbylinc.com/htm/hca/hcahcar3785.htm | ||
| 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 |
ISU Clean Room Facility
- The chamber's longest wire should be lifted 4 ft off the floor.
- Need a hand rail system so people don't fall off the ledge because they mistake the clean room wall for a solid structure.
File:BasementRenovationDrawing 6-16-10.pdf
File:BasementRenovationDrawing 6-28-10.pdf Changes to machine shop door
File:BasementRenovationDrawing 7-26-10.pdf Maybe the Final design with 8' hallways and 8' doors to the clean room
Media:Series575_CleanRoom_InstallManual.pdf
Ed cash : 242-8192 (manages electricians, call to be sure work order is in place for )
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
Construction Quotes
We are currently waiting on quotes from the following companies on the construction of the Clean Room (both specs) at ISU. They are Modular Clean Rooms and Clean Air Products. Once quotes are received, pdf's of the quotes will be uploaded online.
2010 July 14
Quote from Clean Air Products for the ISU Basement:
Latest quote
File:Clean Air Quote 4-27-11.pdf
File:Clean Air Quote 10-15-10.pdfFile:Clean Air FilterQuote 10-15-10.pdf
File:Clean Air FilterDescript 10-15-10.pdf
File:Clean Air Quote No Filters.pdf
Dimensions of door from loading dock to clean room 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.
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.
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.
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.
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.
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.
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.
Overhead lighting will be suspended from the frame in order to provide sufficient lighting for the room occupants to work within.
Floor paint
File:ArmoSeal1000epoxypaint.pdf
Pictures of Path from Dock to clean room
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.
Below are pictures showing how our R1 mock up, an equilateral triangle 8' on the side, passes from the loading dock to the clean room area.
 |
|
| The 8' wide mock up is a few inches larger than the loading dock door. | The mock up is just able to pass through the door when standing up. |
The R1 chambers will pass through 2 newly cut doorways to the clean room
 |
|
| The 8' wide mock has several inches to spare going through the first doorway. | The second doorway is the same width as the first. |
- Photos courtesy of Dr. Philip Cole
Pictures of the ISU Squash Court
6/18/09
The clean room needs space for instrumenting. The DC will be layed horizontal so PC cards can be mounted and tested.
6/24/10
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.
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.
No Halogen lighting.
Think about air conditioning. People are space heaters.
Have shoes specific for clean room instead of booties.
Clean room floor plan for Basement and Airport
Here is a preliminary floor plan for the Updated clean room in the ISU Basement
File:Clean Room Squash Court.eps
replace the above with a PNG or JPG file so we can see it in the wiki
Pros and Cons of Locations
- Physics Basement
- Pros
1.) similar size to ODU just 5 feet shorter.
20x39x15' -vs- 20x40x20;
2.) more quality control: 4 Physics professors more likely to look in on construction in between classes
3.)established record of temperature control
4.) closer to other facilities; machine shops, electronics, ...
- Cons
1.) must move detector standing up to get through 6' hallway
2.) more heavy lifting when bringing in and out of basement (this is only 2 day out of the months involved in construction)
- Airport
- Pros
1.) Plenty of Room
- Cons
1.)adds > $10k to cost of clean room
2.) far away from professors eyes (could be a pro)
ODU's Clean Room
ODU's current clean room size:
20 ' high 20 ' Width 40 ' Length
CLAS 10,00 clean rooms
Environmental control needed
Temperature control constraint is
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
HVAC performance June 2011
The HVAC system has been repaired. It was set to a temperature of 66 +/- 2 degree F. I saw the cooling light turn on at least once. On June 21,2011 the set point was changed from 66 to 72.
Below is a snapshot after I turned the set point from 66 to 72. It looks like the cycle time was about 20 minutes when set to 66 degrees and 2 degree stability.
The temperatures measured after changing the temperature set point to 72.
Temperature Oscillations observed before adding a tarp over the large doorway
Some IAC personnel moved the tarp for a little while at time index 18:40. Fortunately there will be 2 doors put in. One where the tarp is now and another 5 feet towards the basement exit. Otherwise, I would worry about the impact of opening the large door on stringing.
The temperature seems to be more stable now with the tarp over the doorway, allowing the HVAC to control the temperature in only the clean room area. Below is a graph of the temperature in the room over a 6 hour period starting at 8 am until 2 pm on June 24, 2011.
Below is a plot of the temperatures recorded over the last 7 days (4/18 - 24 / 11) when all the changes were happening to try and bring the temperature up to 72 degrees.
Below is a plot of the temperatures recorded over the last 7 days (4/21 - 27 / 11) . There appears to be a slow rise?
- 6/28/11
I went down to the clean room and and saw that the Duct work was started. There are open holes into the adjacent room right now which need to be closed up.
- I also saw that the set point has been raise to 73 degrees. This explains the temperature rise above.
- 8/11/11
Began moving the temperature sensors to new locations in the clean room. We plan on mounting them at locations which will measure the stringing temperature at the top and bottom of a chamber while we are stringing the chamber
- 8/24/11
Installed an air deflector on the 5th vent furthest from the HVAC unit at approximately 11:30 AM, fourth vent furthest at ~3:00 PM, and 3rd vent at 3:15 PM.
July 2011 HVAC performance
6/6/11
Construction begins in the clean room. I opened the tarp over our big door a little bit and now I see temperature oscillations again.
6/7/11
The first few days of July were stable but there was a positive temperature gradient slowly increasing the temperature about +1/3 degree F per day. Then on July 4 something caused temperatures to fluctuate at least 1 degree within a day. Could it be that the university turned off the AC over the weekend and there was a delay seeing the building aclimate?
Sept 11 power outage recovery
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
Discussion items
1.) Budget
- JLab to ISU travel for JLab personnel to inspect operations
- shipping container for R1 chambers
2.) Clean room
cost =
assume we copy the ODU clean room
Using IAC conference room space, need to remove carpet and paint floor.
3.) hiring timeline
9/08 NSF proposal submission
4.) stringing platform and DC stringing support arm
5.) Manpower
6.) MOU to support post doc request or faculty release time
7.) Stringing equipment
a.) crimping tool
b.) glue
c.) wire or feedthroughs?
d.) wire tension measurement (PC, Magnets, associated electronics
A few pictures ff the R1 full size proto type from my JLab visit on 9/16/07. It is about 6 feet tall. CLAS12_R1_Prototype_9-16-07
The air actuated crimping tool:
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.
 |
|
 |
|
 |
|
R1 Proceedures
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
CLAS12 R1 SOW
Readiness Review
CLAS12_R1_Progress_Reports
Vendors
http://www.cleanairproducts.com/
References
Stringing Manual
Media:R1_CLAS12_StringingManual_2008.doc Media:R1_CLAS12_StringingManual_2008.pdf
Media:R1_CLAS12_StringingManual_2011_V1.2.pdf
JLab job posting for lead stringer
add should be available at
https://isujobs.net/applicants/jsp/shared/Welcome_css.jsp
CLAS Wire Chamber Technician
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)
DUTIES: 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: - 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.
During interview have them try to crimp a wire.
Master rigger, to manipulate the chamber onto the stringing platform.
Master rigger class at JLab on November 2-4, 2010. Overhead training class pre-req. contact kelley
Overhead crane class,