Wednesday July 24, 2013

We will meet in TED 2561B on Wednesday July 24 at 3:00 pm EST.

For those calling in we'll use the ReadyTalk audio conference system.

1. Dial Toll-Free Number: 866-740-1260 (U.S. & Canada)
2. Enter 7-digit access code 4402297, followed by “#”

Agenda:

 media:Meeting_24July_2013.pdf
 media:Meeting_24July_2013.pptx  

1- Schedule

2- Design of beamline, radiator and dump

• Experiment beam line today is presently decommissioned, ready for modification:

3- Bubble Chamber work at Argonne

4- Background and simulation

5- Absolute beam energy

• One slide on beam momentum Media:130724_Bubble_Grames.pdf

6- Safety

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Notes from this meeting:

- The power deposited in the radiator for 200 uA and 8.5 MeV electron beam:
  For 0.02 mm radiator, average energy loss is 24 keV, P = 4.8 W
  For 0.10 mm radiator, average energy loss is 120 keV, P = 24 W
- What is the temperature of the LCW that will be used to cool the radiator?
- Need a HARP in the new Bubble Chamber line to measure the size of the beam impinging on the radiator
- On the radiator ladder, we should have a viewer and preferable a YAG viewer to check the beam size
- Need a camera to look at the OTR coming from the radiator
- Safety:
  The sweep dipole must be in FSD to protect the exit window
  There will be about 500 ml of mercury used a buffer liquid in the chamber