PosRun 12 10 2013: Difference between revisions
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PICAP coincidence detector is compared of two silicon disks 1cm in radius separated by two cm | |||
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Latest revision as of 21:35, 10 December 2013
120 Hz , 39 MeV electrons on 2 mm thick tungsten
Electron coincidence rate was always 80 Hz
PICAP coincidence detector is compared of two silicon disks 1cm in radius separated by two cm
| [math]\displaystyle{ \theta }[/math] | E (MeV) | I beam for e- pVs 50 ohms | I beam for e+ | e+ Rate | mag - det dist ( cm) |
| 50 | 9.7 | . | |||
| 57 | 8.8 | . | 65 | ||
| 68 | 6.8 | 197 | 5820 | 23 | 77 |
| 78 | 5.5 | 968 | 60 | ||
| 90 | 4.5 | 23 |