Positrons
Proposals
Collaboration
Work
Designs
- IAC positron beamline
- OptiM32_HRRL_PositronDesign
- Beamline design (G. Stancari)
- Beamline design (Y. Kim)
- Beamline_Drawing_2011_J.Ellis
- HRRL_Positron_Rotating_W_Target
- 90 degree beamline extension
HRRL beam Line installation
Experiments
- HRRL_Experiment_Readiness_Chek_List
- CHIPS_Run_Feb-2008
- CHIPS_Run_May-2008
- HRRL radiation tests
- Emittance Test
- HRRL OTR Test Feb 16th 2011
- HRRL OTR Test Mar 3rd 2011
- HRRL_Emittance_Measurements_March14-18-2011
- Emittance Measurement with Optical transition Radiation (OTR)
- PePPO_NaI_PositronDetector_4_JLab
- IAC_NaI_Detectors
- Coincidence_with_NaI_Detectors
- Beam_Test_Apr_24_2012
- Beam_Test_Apr_26_2012
- Beam_Text_May_17_2012
- PePPO_2011Run
- PePPO_2012Run
- PePPO_02222012
- PePPO_03132012
- PePPO_03242012
- PePPO_05302012
[PEPPo_Software]]
Simulations
Equipment
References
- JLab Positron Wiki
- JPOS09
- Positron_References
- Python
- File:SadiqTalkPePPO 4-26-2011.pdf
- e+ Gun Beam Line Construction
- Positron Annihilation
- Quad Scan Method File:Emit Meas DAFNE Linac e Beam.pdf
- IPAC_2012
Calculations
Neutron production
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 | |
MDC Parts list
Parts received
Mar 10th 2012
| Part# | Quantity | Discription | Link |
| 450005 | 1 | view port | big viewport for corosses |
| 110022 | 1 | Blank off | Blank off |
| 611005 | 2 | feedthrough for cooling | feedthrough for cooling |
| 404048 | 1 | Reduced T | reduec T for ion pump |
Apr 17th 2012
| Part# | Quantity | Discription | Link |
| 450005 | 1 | view port | big viewport for corosses |
| 100021 | 2 | Flng, 4.5"x2.5"Rotatable | long beam pipe flanges |
Apr 23 2012
Long beam pipe through the wall is ready.
Apr 30th 2012
| Part# | Quantity | Discription |
| 1 | Installation kit for chaber vacuum window |
May 14th 2012
| Part# | Quantity | Discription | Link |
| 9712007 | 1 | Viewport for vaccum chamber | viewport |
May 18th 2012
| Part# | Quantity | Discription | Link |
| 407005 | 1 | 6-way cross for Flag 3 | 6-way cross |
| 9132004 | 1 | 10 pin electric feed through | feed through |
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.)
| Parts | Quantity | Link | Delevary status |
| 5-way cross | 1 | 5-way cross | |
| View Port | 1 | VPQ-300, quote from last time File:Hrrl-view-port-quote.pdf This item chaged to [MDC viewport for corosses] | Delevered |
| Blank off | 1 | Blank off | Delevered |
2. 5-6 way cross for 90 degree line
Do we need Faraday Cup at the end of 90 degree?
| Parts | Quantity | Link | Delevary status |
| 6-way cross | 1 | 6-way cross | |
| Faraday Cup | 2 (1 for 45 degree and 1 for 90 degree) | Faraday Cup, Buy this one Faraday Cup | |
| View Port | 1 | VPQ-300, quote from last time File:Hrrl-view-port-quote.pdf This item chaged to [MDC viewport for corosses] | Delevered |
4. Flanges for 90 degree beam line
| Parts | Quantity | Link | Deleveray status |
| Flng, 4.5"x2.5"Rotatable | 2 | Flange 450-250 | Delevered |
5. Ion pump parts
Ion pump parts
| Parts | Parts Label | Quantity | Link | Delevaray status |
| Reduced 3-way Cross (T) | ReducingTee, 4.5"x2.75" | 1 | Reduced T | Delevared. |
6. Target chamber parts
Target chamber parts (HV = 10^{-8} Torr)
a.) 10- pin wiring feedthrough
http://www.mdcvacuum.com/displayproductcontent.aspx?d=MDC&p=i.1.1.2.1
b.) 4 flexible hoses for cooling lines (at least nitrogen gas hopefully liquid nitrogen)
http://www.mdcvacuum.com/displayproductcontent.aspx?d=MDC&p=m.6.2.4.1
c.) IR optical window for target temperature measurement
http://www.mdcvacuum.com/displayproductcontent.aspx?d=MDC&p=i.7.1.1.1
| Parts | Quantity | Link | Delevary status |
| 10 - pin wiring feedthrough | 1 | Pin Through | |
| 4 flexible hoses for cooling lines | 2 | Cooling Hoses | deleraved |
| IR optical window | 1 | Optical Window | delevared |