Difference between revisions of "Beam Test Jul 20 2012"
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Electron gun trigger and detector diode signal put into and logic. We want to put the annihilation target in and out, see how it affects the rate. | Electron gun trigger and detector diode signal put into and logic. We want to put the annihilation target in and out, see how it affects the rate. | ||
| − | Annihilation Target Slit width | + | Mode Annihilation Target Slit width D1(A) D2(A) Counts / Time(s) Rate(Hz) |
| − | in 1.00 cm | + | e+ in 1.00 cm 4.2 4.2 445 / 199.9 2.23 |
| − | out 1.00 cm | + | e+ out 1.00 cm 4.2 4.2 545 / 199.9 2.72 |
| − | in 1.00 cm | + | e+ in 1.00 cm 4.2 4.2 241 / 99.8 2.41 |
| − | out 1.00 cm | + | e+ out 1.00 cm 4.2 4.2 268 / 99.9 2.68 |
| − | out 0.20 cm | + | e+ out 0.20 cm 4.2 4.2 692 / 200 3.46 |
| − | in 0.20 cm | + | e+ in 0.20 cm 4.2 4.2 1178 / 199.9 5.89 |
| + | e+ in 0.20 cm 4.2 5.8 724 / 200 3.62 | ||
Revision as of 17:32, 20 July 2012
We started up the accelerator where we left from yesterday.
Detector tests
Beam Left Detector
Electron gun trigger and detector diode signal put into and logic. We want to put the annihilation target in and out, see how it affects the rate.
Mode Annihilation Target Slit width D1(A) D2(A) Counts / Time(s) Rate(Hz) e+ in 1.00 cm 4.2 4.2 445 / 199.9 2.23 e+ out 1.00 cm 4.2 4.2 545 / 199.9 2.72 e+ in 1.00 cm 4.2 4.2 241 / 99.8 2.41 e+ out 1.00 cm 4.2 4.2 268 / 99.9 2.68 e+ out 0.20 cm 4.2 4.2 692 / 200 3.46 e+ in 0.20 cm 4.2 4.2 1178 / 199.9 5.89 e+ in 0.20 cm 4.2 5.8 724 / 200 3.62