1. Dan Dale Idaho State University February 19, 2012
Status of PrimEx Flux
Dan Dale
Idaho State University
February 19, 2012

2. Comments on flux paper
Flux analysis
-TAC runs
-electron counting
-pair spectrometer

3. Flux paper Initial NIM draft done 12 ½ pages without references
Currently in the process of cutting material
Should be about 10 pages
Draft ready for general review March 23.

4. TAC runs When I was RC, we didn’t have analysis of TAC runs.
Damage to TAC.
We have good experience on analysis from PrimEx I
Key plot from PrimEx I to reproduce….

5. TAC-tagger timing
Fig 5

6. TAC runs intensity study
Probably don’t have
this for PrimEx II

7. TAC long term stability
We have this for PrimEx II

8. TAC - collimator position effect
Don’t have this for PrimEx II

9. TAC – collimator size effects
Fig 11

10. Two methods – out of time method and clock trigger
Electron counting
Two methods – out of time method and clock trigger

11. Out of Time Method 13

12. Clock triggers

13. Pair spectrometer

14. PS- tagger backgrounds15

17. Conclusions on flux We have good experience from PrimEx I
TAC runs – probably not all tests reproduced in PrimEx II, but this is probably not a problem
Electron counting – similar analysis
Pair spectrometer – similar analysis