Positrons

Proposals

• Positrons_Using_The HRRL
• DOE_EPSCoR Proposal
• JLAB_Positron_Source_DOE_Award_DE-SC0002600

Collaboration

• The Cebaf High Intensity Positron Source

Work

• HRRL_CHIPS_Logbook

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

• HRRL_BeamLine_2011

• HRRL_Alignment_2011

• HRRLPos_Timeline_Summary

Experiments

• 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
• PePPO_2011Run
• PePPO_2012Run
• PePPO_02222012

Simulations

• HRRL radiation footprint simulations
• HRRL Move_2010
• Optimization of Positron Capturing

Equipment

• Instruments and Equipments
• Turning on HRRL
• Images
• Beamline Parts
• Rotating Tungsten Target System

References

• JLab Positron Wiki
• JPOS09
• Positron_References
• Python
• File:SadiqTalkPePPO 4-26-2011.pdf
• e+ Gun Beam Line Construction

Neutron production

File:Huang NIMB229 2005.pdf

MDC Parts list

4-6way cross for 45 degree line

5 cross for the 45 degree beam line flag.

Parts	Quantity	Link
5-way cross	1	5-way cross

5-6 way cross for 90 degree line

We have one 3-way cross for this. But it is preferred to use 5-6 way cross, since we attach NaI detectors to it like we did in JLab PEPPo.

Parts	Quantity	Link
5-way cross	either one 6-way or 5-way cross.	5-way cross
6-way cross	either one 6-way or 5-way cross.	6-way cross

Double side Flange for Jlab Flag 3

I need to check if we have it or not.

1. Flanges for 90 degree beam line

450-250

100021 - Flng, 4.5"x2.5"Rotatable

1. MODEL REFERENCE: REF# F450250R

1. PART NUMBER: 100021

1. PART NAME: Flng, 4.5"x2.5"Rotatable

Quantity needed: 2

Parts	Quantity	Link
Flng, 4.5"x2.5"Rotatable	2	Flange 450-250

3 Ion pump parts

Ion pump parts

Parts	Parts Label	Quantity	Link
Reduced 3-way Cross (T)	ReducingTee, 4.5"x2.75"	1	Reduced T

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

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