Difference between revisions of "Positrons"

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http://www.8020.net/
 +
 +
= Liquid PbBi Target in Solenoid Magnetic Field =
 +
* [[Liquid PbBi Target in Solenoid Magnetic Field]]
 +
 
=Proposals=
 
=Proposals=
 
*[[Positrons_Using_The HRRL]]
 
*[[Positrons_Using_The HRRL]]
Line 18: Line 23:
 
* [[HRRL_Positron_Rotating_W_Target]]
 
* [[HRRL_Positron_Rotating_W_Target]]
 
* [[90 degree beamline extension]]
 
* [[90 degree beamline extension]]
 +
* [[Beamline design drawing]]
 +
* [[G4beamline_PbBi2015]]
  
 
==HRRL beam Line installation ==
 
==HRRL beam Line installation ==
Line 26: Line 33:
  
 
*[[HRRLPos_Timeline_Summary]]
 
*[[HRRLPos_Timeline_Summary]]
 +
 +
*[[HRRL_BeamLine_orders]]
 +
 +
*[[HRRL_Alignment_25Jun2012]]
  
 
==Experiments==
 
==Experiments==
Line 43: Line 54:
 
* [[Beam_Test_Apr_26_2012]]
 
* [[Beam_Test_Apr_26_2012]]
 
* [[Beam_Text_May_17_2012]]
 
* [[Beam_Text_May_17_2012]]
 +
* [[HRRL_July_2012Run]]
 +
* [[HRRL_Dec_2012Run]]
 
* [[PePPO_2011Run]]
 
* [[PePPO_2011Run]]
 
* [[PePPO_2012Run]]
 
* [[PePPO_2012Run]]
Line 49: Line 62:
 
* [[PePPO_03242012]]
 
* [[PePPO_03242012]]
 
* [[PePPO_05302012]]
 
* [[PePPO_05302012]]
 +
*[[12_10_2012_HRRL_DetectorTests]]
 +
*[[Positrons_Using_40Mev_Linac]]
  
 
[PEPPo_Software]]
 
[PEPPo_Software]]
Line 57: Line 72:
 
* [[HRRL Move_2010]]
 
* [[HRRL Move_2010]]
 
* [[Optimization of Positron Capturing]]
 
* [[Optimization of Positron Capturing]]
 +
* [[July2012PosSimulation]]
 +
* [[TF_G4Beamline]]
 +
* [[PePPO_Annih]]
 +
* [[G4Beamline_PbBi]]
  
 
=Equipment=
 
=Equipment=
Line 66: Line 85:
  
 
=References=
 
=References=
 +
*[[Jlab_Positro_Working_Group]]
 +
*[https://wiki.jlab.org/pwgwiki/index.php/Main_Page JLab Positron Working Group Wiki]
 +
*[https://wiki.iac.isu.edu/images/8/88/Sadiq_hesis_Latex.pdf Sadiq's Thesis]
 
* [https://positron.jlab.org/wiki/index.php/Main_Page JLab Positron Wiki]
 
* [https://positron.jlab.org/wiki/index.php/Main_Page JLab Positron Wiki]
 
* [[JPOS09]]
 
* [[JPOS09]]
Line 75: Line 97:
 
* Quad Scan Method [[File:Emit_Meas_DAFNE_Linac_e_Beam.pdf]]
 
* Quad Scan Method [[File:Emit_Meas_DAFNE_Linac_e_Beam.pdf]]
 
*[[IPAC_2012]]
 
*[[IPAC_2012]]
 +
 +
= Vendors =
 +
*[[HRRL_Positron_Vendors_Targets]]
  
 
= Calculations =
 
= Calculations =
 
[[ Positron_Yield_Estimate]]
 
[[ Positron_Yield_Estimate]]
 +
 +
[[511 keV photon attenuation in tungsten]]
  
 
==Neutron production==
 
==Neutron production==
Line 108: Line 135:
 
| || check camera pulse trigger synchronization
 
| || check camera pulse trigger synchronization
 
|-
 
|-
−
| || check beam line alignment
+
| || check beam line alignment , are energy slits centered, is 90degree line going straight through wall
 
|-
 
|-
 
| || bolt last flange to girder after last set of quads
 
| || bolt last flange to girder after last set of quads
 
|-
 
|-
−
| ||
+
| || tungsten target holder for rotating target
−
|}
 
−
 
 
−
=MDC Parts list=
 
−
 
 
−
== Parts received ==
 
−
 
 
−
===Mar 10th 2012 ===
 
−
 
 
−
{| border="1"  |cellpadding="20" cellspacing="0
 
−
|-
 
−
|  Part#  || Quantity ||  Discription || Link
 
−
|-
 
−
|  450005  ||    1    ||  view port    || [http://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&p=450005 big viewport for corosses]
 
−
|-
 
−
|  110022  ||    1    || Blank off      || [http://www.mdcvacuum.com/Search.aspx?q=110022 Blank off]
 
−
|-
 
−
|  611005  ||    2    || feedthrough for cooling  || [http://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&p=611005 feedthrough for cooling]
 
−
|-
 
−
|  404048  ||    1    || Reduced T || [http://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&p=404048 reduec T for ion pump]
 
−
|-
 
−
|}
 
−
 
 
−
=== Apr 17th 2012 ===
 
−
 
 
−
{| border="1"  |cellpadding="20" cellspacing="0
 
−
|-
 
−
|  Part#  || Quantity ||  Discription || Link
 
−
|-
 
−
|  450005  ||    1    ||  view port    || [http://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&p=450005 big viewport for corosses]
 
−
|-
 
−
|  100021  ||    2    ||  Flng, 4.5"x2.5"Rotatable    || [http://www.mdcvacuum.com/Search.aspx?q=100021 long beam pipe flanges]
 
−
|}
 
−
 
 
−
=== Apr 23 2012 ===
 
−
 
 
−
Long beam pipe through the wall is ready.
 
−
 
 
−
 
 
−
=== Apr 30th 2012 ===
 
−
 
 
−
{| border="1"  |cellpadding="20" cellspacing="0
 
−
|-
 
−
|  Part#  || Quantity ||  Discription
 
−
|-
 
−
|    ||    1    ||  Installation kit for chaber vacuum window   
 
−
|}
 
−
 
 
−
 
 
−
 
 
−
=== May 14th 2012 ===
 
−
 
 
−
 
 
−
{| border="1"  |cellpadding="20" cellspacing="0
 
−
|-
 
−
|  Part#  || Quantity ||  Discription || Link
 
 
|-
 
|-
−
| 9712007  ||    1     || Viewport for vaccum chamber    || [http://www.mdcvacuum.com/displayproductcontent.aspx?d=MDC&p=i.7.1.1.1 viewport]
+
| 1
−
|}
+
| | Ta or W re-conversion target for Flag 3
−
 
 
−
=== May 18th 2012 ===
 
  
−
{| border="1"  |cellpadding="20" cellspacing="0
 
 
|-
 
|-
−
| Part#  || Quantity ||  Discription || Link
+
|
 +
| | check flag 2 yag optics & setup, need way to switch internet between cameras so one computer can record images from each separately
 
|-
 
|-
−
| 407005    ||   1    ||  6-way cross for Flag 3  || [http://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&p=407005 6-way cross]
+
|
 +
| | two sets of steering magnets for 90 degree line
 
|-
 
|-
−
| 9132004  ||   1    ||  10 pin electric feed through    || [http://www.mdcvacuum.com/displayproductcontent.aspx?d=MDC&p=i.1.1.2.1 feed through]
+
| || pull cable for FCC signals and fan out to control room and DAQ room
−
|}
 
  
−
=== May 26th 2012 ===
 
−
2 Faraday cups
 
  
−
== Parts expecting ==
 
−
 
−
1) One 5 way cross;
 
−
 
−
==1. 4-6way cross for 45 degree line ==
 
−
 
−
1) 5 way cross for 45 degree.
 
−
 
−
2) Blank-off or view port. (If we borrow the view port 0 degree, we need to buy a blank-off for 0 degree.)
 
−
 
−
[[File:HRRL_order_45deg.png | 300 px]]
 
−
 
−
{| border="1"  |cellpadding="20" cellspacing="0
 
 
|-
 
|-
−
| Parts        || Quantity || Link || Delevary status
+
| in progress || Check the alignment.
 
|-
 
|-
−
| 5-way cross  ||    1    || [http://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&p=406005 5-way cross] ||
+
| done || Find DAQ hard-wares from Dr. McNalty's lab.
−
|-
 
−
| View Port  ||    1    || [http://www.huntvac.com/products.php?t=series&id=616 VPQ-300], quote from last time  [[File:hrrl-view-port-quote.pdf]] This item chaged to [[http://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&p=450005 MDC viewport for corosses]] || Delevered
 
−
|-
 
−
|  Blank off ||    1    || [http://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&p=110022 Blank off] || Delevered
 
−
|-
 
−
|}
 
−
 
 
−
==2. 5-6 way cross for 90 degree line ==
 
−
 
 
−
[[File:HRRL_order_90deg.png | 500 px]]
 
−
 
 
−
 
 
−
Do we need Faraday Cup at the end of 90 degree?
 
−
 
 
−
 
 
−
{| border="1"  |cellpadding="20" cellspacing="0
 
 
|-
 
|-
−
| Parts        || Quantity || Link || Delevary status
+
| done ||  Ask Chad to make FC cooler.
−
|-
 
−
|  6-way cross ||  1    || [http://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&p=407005 6-way cross] ||
 
 
|-
 
|-
−
| Faraday Cup ||   2 (1 for 45 degree and 1 for 90 degree)    ||[http://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&p=9452000 Faraday Cup, Buy this one] [http://www.mdcvacuum.com/DisplayProductContent.aspx?d=MDC&p=i.4.5.2.1 Faraday Cup] ||
+
| in progres|| Work on Table design.
 
|-
 
|-
−
| View Port  ||   1    || [http://www.huntvac.com/products.php?t=series&id=616 VPQ-300], quote from last time [[File:hrrl-view-port-quote.pdf]] This item chaged to [[http://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&p=450005 MDC viewport for corosses]] || Delevered
+
| in progres||  Align YAG at the center of the 5-way cross.
 
|-
 
|-
−
|}
+
| || Check the JAI camera trigger and trig it synchronously with LED.
−
 
 
−
==4. Flanges for 90 degree beam line ==
 
−
 
 
−
 
 
−
{| border="1" |cellpadding="20" cellspacing="0
 
 
|-
 
|-
−
| Parts                    || Quantity || Link || Deleveray status
+
| in progres|| Order W-targets -- Just order them online.
 
|-
 
|-
−
| Flng, 4.5"x2.5"Rotatable ||   2    || [http://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&p=100021 Flange 450-250] || Delevered
+
| done || Order Prosilica camera cable -- Waiting for the confirmation.
 
|-
 
|-
−
|}
+
| in progres||  Install beam parts. (Ens, Flag2 Dipole2, Long beampipe, FC2, Flag2 gas.)
−
 
 
−
==5. Ion pump parts ==
 
−
 
 
−
Ion pump parts
 
−
 
 
−
{| border="1" |cellpadding="20" cellspacing="0
 
 
|-
 
|-
−
| Parts    ||  Parts Label || Quantity || Link || Delevaray status
+
|  || Find W-Target and target holder.
 
|-
 
|-
−
| Reduced 3-way Cross (T) ||  ReducingTee, 4.5"x2.75" || 1 || [http://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&p=404048 Reduced T] || Delevared.
+
| || Find a pipe (or 3-way cross) to replace 5-way cross.
 
|-
 
|-
 +
|  || Install 45-deg Flag to W-target position.
 
|}
 
|}
  
−
==6. Target chamber parts ==
+
= Things to do for the next run =
  
−
Target chamber parts (HV = 10^{-8} Torr)
+
1. W target holder and W target desinge
  
−
a.) 10- pin wiring feedthrough
+
2. hose from copper cooling lines to feedtrough. (swagelok, simlar with target cooling).
  
−
http://www.mdcvacuum.com/displayproductcontent.aspx?d=MDC&p=i.1.1.2.1
+
3. chamber: 6 week lead time.
  
−
b.) 4 flexible hoses for cooling lines (at least nitrogen gas hopefully liquid nitrogen)
+
4. cooling connection, check valve, nitrogen bottles, plastic pipes.
  
−
http://www.mdcvacuum.com/displayproductcontent.aspx?d=MDC&p=m.6.2.4.1
+
5. light emitting diode and detecting photo diode.
  
−
c.) IR optical window for target temperature measurement
+
6. theromo-copler to on the things to monitor temperture. (thermestors glue on copper line, stanless steel line). thermestors need to be in the range of the parts they are on. Check the document of the motor for its temperature range.
  
−
http://www.mdcvacuum.com/displayproductcontent.aspx?d=MDC&p=i.7.1.1.1
 
  
−
{| border="1"  |cellpadding="20" cellspacing="0
+
=[[Positron_Emon_Paper]]=
−
|-
 
−
| Parts    || Quantity || Link || Delevary status
 
−
|-
 
−
|  10 - pin wiring feedthrough || 1 || [http://www.mdcvacuum.com/displayproductcontent.aspx?d=MDC&p=i.1.1.2.1 Pin Through] ||
 
  
−
|-
+
=[[LBE_Paper]]=
−
| 4 flexible hoses for cooling lines  ||  2 || [http://www.mdcvacuum.com/displayproductcontent.aspx?d=MDC&p=m.6.2.4.1 Cooling Hoses] || deleraved
 
−
|-
 
−
| IR optical window  || 1  || [http://www.mdcvacuum.com/displayproductcontent.aspx?d=MDC&p=i.7.1.1.1 Optical Window] || delevared
 
−
|-
 
−
|}
 
  
 
[[User_talk:foretony]]
 
[[User_talk:foretony]]

Latest revision as of 19:41, 16 December 2016

http://www.8020.net/

Liquid PbBi Target in Solenoid Magnetic Field

Proposals

Collaboration

Work

Designs

HRRL beam Line installation

Experiments

[PEPPo_Software]]

Simulations

Equipment

References

Vendors

Calculations

Positron_Yield_Estimate

511 keV photon attenuation in tungsten

Neutron production

File:Huang NIMB229 2005.pdf

Task list

Priority task
1 Order target chamber
1 Order 8 tungsten targets, 2 mm thick
1 Order cooling lines for target chamber
1 Order 8 tungsten targets, 2 mm thick
2 Build box to hold target motor controls, pull cables
3 enclose HRRL cavity with 1/4" lead
check all connectors are in hand for target control
check camera pulse trigger synchronization
check beam line alignment , are energy slits centered, is 90degree line going straight through wall
bolt last flange to girder after last set of quads
tungsten target holder for rotating target
1 Ta or W re-conversion target for Flag 3
check flag 2 yag optics & setup, need way to switch internet between cameras so one computer can record images from each separately
two sets of steering magnets for 90 degree line
pull cable for FCC signals and fan out to control room and DAQ room


in progress Check the alignment.
done Find DAQ hard-wares from Dr. McNalty's lab.
done Ask Chad to make FC cooler.
in progres Work on Table design.
in progres Align YAG at the center of the 5-way cross.
Check the JAI camera trigger and trig it synchronously with LED.
in progres Order W-targets -- Just order them online.
done Order Prosilica camera cable -- Waiting for the confirmation.
in progres Install beam parts. (Ens, Flag2 Dipole2, Long beampipe, FC2, Flag2 gas.)
Find W-Target and target holder.
Find a pipe (or 3-way cross) to replace 5-way cross.
Install 45-deg Flag to W-target position.

Things to do for the next run

1. W target holder and W target desinge

2. hose from copper cooling lines to feedtrough. (swagelok, simlar with target cooling).

3. chamber: 6 week lead time.

4. cooling connection, check valve, nitrogen bottles, plastic pipes.

5. light emitting diode and detecting photo diode.

6. theromo-copler to on the things to monitor temperture. (thermestors glue on copper line, stanless steel line). thermestors need to be in the range of the parts they are on. Check the document of the motor for its temperature range.


Positron_Emon_Paper

LBE_Paper

User_talk:foretony


User:Setisadi

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