Difference between revisions of "03-30-2015"
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|4510 || ||1/12||1/4|| 1/9||1/13 || 1/387 || 1/371 ||1/409 || 1/228|| unplugged gun pulse around event 300k | |4510 || ||1/12||1/4|| 1/9||1/13 || 1/387 || 1/371 ||1/409 || 1/228|| unplugged gun pulse around event 300k | ||
|- | |- | ||
| − | |4511 || 1/14 || || |||| || || | + | |4511 || 1/14 || || 1/3.8|||| || ||1/437 |||| ||Photon peak at 323 ns for [8] |
|- | |- | ||
|4512 || 1/ || || 1/3.8|||| || || 1/437 |||| || | |4512 || 1/ || || 1/3.8|||| || || 1/437 |||| || | ||
Revision as of 21:39, 30 March 2015
| Run # (multihit data) | Description |
| 4504 | Al radiator in, DU cyl. target in, Current = 800 mA width = 100 ps, Ee = 10.5 MeV, rep. rate = 200Hz, slits are at 351. LED = 10 mV (all), LED pulse width = 40 ns (all)
N(gamma/pulse, TDC[1][8]) = 1/13, N(n/pulse, TDC[1][8]) = 1/391 = 0.00255 N(gamma/pulse, TDC[1][10]) = 1/10, N(n/pulse, TDC[1][10]) = 1/378 = 0.00266 |
| 4505 | Al radiator in, DU cyl. target in, Current = 800 mA width = 100 ps, Ee = 10.5 MeV, rep. rate = 200Hz, slits are at 351. LED = 20 mV (all), LED pulse width = 40 ns (all)
N(gamma/pulse, TDC[1][8]) = 1/18, N(n/pulse, TDC[1][8]) = 1/1158 = 0.00086 N(gamma/pulse, TDC[1][10]) = 1/14, N(n/pulse, TDC[1][10]) = 1/922 = 0.0011 |
| 4506 | Al radiator in, DU cyl. target in, Current = 800 mA width = 100 ps, Ee = 10.5 MeV, rep. rate = 200Hz, slits are at 351. LED = 5 mV (all), LED pulse width = 40 ns (all)
N(gamma/pulse, TDC[1][8]) = 1/13, N(n/pulse, TDC[1][8]) = 1/259 = 0.0039 N(gamma/pulse, TDC[1][10]) = 1/9, N(n/pulse, TDC[1][10]) = 1/245 = 0.0041 |
| 4507 | Al radiator in, DU cyl. target in, Current = 800 mA, LINAC pulse width = 100 ps, Ee = 10.5 MeV, rep. rate = 200Hz, slits are at 351. Back to LED threshold = 10 mV (all), LED pulse width = 40 ns (all). LED is in updating mode. Pair spectrometer Det @ 15 mV threshold. Production run.
Positron rate by visual scaler = 120 e+/min N(gamma/pulse, TDC[1][8], Det #1 top) = 1/15, N(n/pulse, TDC[1][8], Det #1 top) = 0.0023 N(gamma/pulse, TDC[1][10], Det #3 top) = 1/11 N(n/pulse, TDC[1][3], Det #4 bottom) = 0.0037 N(n/pulse, TDC[1][9], Det #1 bottom) = 0.0021 N(n/pulse, TDC[1][0], Det #2 top) = 0.0021 N(n/pulse, TDC[1][10], Det #3 top) = 0.0022 N(n/pulse, TDC[1][4], Det #5 upstream) = 0.0005 N(n/pulse, TDC[1][14], Det #6 upstream) = 0.0012 |
| 4508 | Al radiator in, DU cyl. target in, Current = 800 mA, LINAC pulse width = 100 ps, Ee = 10.5 MeV, rep. rate = 200Hz, slits are at 351. Back to LED threshold = 10 mV (all), LED pulse width = 40 ns (all). LED is in updating mode. Pair spectrometer Det @ 15 mV threshold. Production run.
Positron rate by visual scaler = 125, 133, 147, 119, 110, 125 e+/min N(gamma/pulse, TDC[1][0], Det #2 top) = 1/4, N(n/pulse, TDC[1][0], Det #2 top) = 0.0025 N(gamma/pulse, TDC[1][1], Det #2 bottom) = 1/4, N(n/pulse, TDC[1][1], Det #2 bottom) = 0.0015 N(gamma/pulse, TDC[1][8], Det #1 top) = 1/15, N(n/pulse, TDC[1][8], Det #1 top) = 0.0023 N(gamma/pulse, TDC[1][10], Det #3 top) = 1/11 N(n/pulse, TDC[1][3], Det #4 bottom) = 0.0043, N(n/pulse, TDC[1][2], Det #4 top) = 0.004 N(n/pulse, TDC[1][9], Det #1 bottom) = 0.0024 N(n/pulse, TDC[1][0], Det #2 top) = 0.0024 N(n/pulse, TDC[1][10], Det #3 top) = 0.0024 N(n/pulse, TDC[1][4], Det #5 upstream) = 0.0005 N(n/pulse, TDC[1][14], Det #6 upstream) = 0.0013 |
| 4509 | Al radiator in, DU cyl. target in, Current = 800 mA, LINAC pulse width = 100 ps, Ee = 10.5 MeV, rep. rate = 200Hz, slits are at 351. Back to LED threshold = 10 mV (all), LED pulse width = 40 ns (all). LED is in updating mode. Pair spectrometer Det @ 15 mV threshold. Production run.
Positron rate by visual scaler = e+/min N(gamma/pulse, TDC[1][0], Det #2 top) = 1/3.8, N(n/pulse, TDC[1][0], Det #2 top) = 0.0022 N(gamma/pulse, TDC[1][1], Det #2 bottom) = 1/4.2, N(n/pulse, TDC[1][1], Det #2 bottom) = 0.0014 N(gamma/pulse, TDC[1][8], Det #1 top) = 1/14.7, N(n/pulse, TDC[1][8], Det #1 top) = 0.0022 N(gamma/pulse, TDC[1][10], Det #3 top) = 1/10.4 N(n/pulse, TDC[1][3], Det #4 bottom) = , N(n/pulse, TDC[1][2], Det #4 top) = N(n/pulse, TDC[1][9], Det #1 bottom) = N(n/pulse, TDC[1][0], Det #2 top) = N(n/pulse, TDC[1][10], Det #3 top) = N(n/pulse, TDC[1][4], Det #5 upstream) = N(n/pulse, TDC[1][14], Det #6 upstream) = |
| 4510 | Al radiator in, DU cyl. target in, Current = 800 mA, LINAC pulse width = 100 ps, Ee = 10.5 MeV, rep. rate = 200Hz, slits are at 351. Back to LED threshold = 10 mV (all), LED pulse width = 40 ns (all). LED is in updating mode. Pair spectrometer Det @ 15 mV threshold. Production run.
Positron rate by visual scaler = e+/min N(gamma/pulse, TDC[1][0], Det #2 top) = , N(n/pulse, TDC[1][0], Det #2 top) = N(gamma/pulse, TDC[1][1], Det #2 bottom) = , N(n/pulse, TDC[1][1], Det #2 bottom) = N(gamma/pulse, TDC[1][8], Det #1 top) = , N(n/pulse, TDC[1][8], Det #1 top) = N(gamma/pulse, TDC[1][10], Det #3 top) = N(n/pulse, TDC[1][3], Det #4 bottom) = , N(n/pulse, TDC[1][2], Det #4 top) = N(n/pulse, TDC[1][9], Det #1 bottom) = N(n/pulse, TDC[1][0], Det #2 top) = N(n/pulse, TDC[1][10], Det #3 top) = N(n/pulse, TDC[1][4], Det #5 upstream) = N(n/pulse, TDC[1][14], Det #6 upstream) = Unplugged Beam pulse/trigger/TDC start during run |
| 4511 | Al radiator in, DU cyl. target in, Current = 800 mA, LINAC pulse width = 100 ps, Ee = 10.5 MeV, rep. rate = 200Hz, slits are at 351. Back to LED threshold = 10 mV (all), LED pulse width = 40 ns (all). LED is in updating mode. Pair spectrometer Det @ 15 mV threshold. Production run.
Positron rate by visual scaler = e+/min N(gamma/pulse, TDC[1][0], Det #2 top) = , N(n/pulse, TDC[1][0], Det #2 top) = N(gamma/pulse, TDC[1][1], Det #2 bottom) = , N(n/pulse, TDC[1][1], Det #2 bottom) = N(gamma/pulse, TDC[1][8], Det #1 top) = , N(n/pulse, TDC[1][8], Det #1 top) = N(gamma/pulse, TDC[1][10], Det #3 top) = N(n/pulse, TDC[1][3], Det #4 bottom) = , N(n/pulse, TDC[1][2], Det #4 top) = N(n/pulse, TDC[1][9], Det #1 bottom) = N(n/pulse, TDC[1][0], Det #2 top) = N(n/pulse, TDC[1][10], Det #3 top) = N(n/pulse, TDC[1][4], Det #5 upstream) = N(n/pulse, TDC[1][14], Det #6 upstream) = Did not observe a time shift in Detector 1 top compared to run 4508, continuing to take data |
| 4512 | Al radiator in, DU cyl. target in, Current = 800 mA, LINAC pulse width = 100 ps, Ee = 10.5 MeV, rep. rate = 200Hz, slits are at 351. Back to LED threshold = 10 mV (all), LED pulse width = 40 ns (all). LED is in updating mode. Pair spectrometer Det @ 15 mV threshold. Production run.
Positron rate by visual scaler = e+/min N(gamma/pulse, TDC[1][0], Det #2 top) = , N(n/pulse, TDC[1][0], Det #2 top) = N(gamma/pulse, TDC[1][1], Det #2 bottom) = , N(n/pulse, TDC[1][1], Det #2 bottom) = N(gamma/pulse, TDC[1][8], Det #1 top) = , N(n/pulse, TDC[1][8], Det #1 top) = N(gamma/pulse, TDC[1][10], Det #3 top) = N(n/pulse, TDC[1][3], Det #4 bottom) = , N(n/pulse, TDC[1][2], Det #4 top) = N(n/pulse, TDC[1][9], Det #1 bottom) = N(n/pulse, TDC[1][0], Det #2 top) = N(n/pulse, TDC[1][10], Det #3 top) = N(n/pulse, TDC[1][4], Det #5 upstream) = N(n/pulse, TDC[1][14], Det #6 upstream) = ' |
Discriminator Threshold study
Al radiator in Current = 800 mA width = 100 ps, Ee = 10.5 MeV, rep. rate = 200Hz, slits are at 351. LED = 10 mV (all), LED pulse width = 40 ns (all) Target = DU rod
| Run # | LED (mv) | Gammas/pulse | Neutrons/Pulse | ||||||
| 1 top [8] | 2 top [0] | 3 top [10] | 4 top [2] | 1 top [8] | 2 top [0] | 3 top [10] | 4 top [2] | ||
| 4504 | 10 | 1/13 | 1/10 | 1/391 | 1/378 | ||||
| 4505 | 20 | 1/18 | 1/14 | 1/1158 | 1/922 | ||||
| 4506 | 5 mV | 1/13 | 1/9 | 1/259 | 1/245 | ||||
Production running on Du rod
Al radiator in Current = 800 mA width = 100 ps, Ee = 10.5 MeV, rep. rate = 200Hz, slits are at 351. LED = 10 mV (all), LED pulse width = 40 ns (all) Target = DU rod 10 mV updating mode. Pair spectrometer Det @ 15 mV threshold. Production run.
| Run # | e^+/min | Gammas/pulse | Neutrons/Pulse | |||||||
| 1 top [8] | 2 top [0] | 3 top [10] | 4 top [2] | 1 top [8] | 2 top [0] | 3 top [10] | 4 top [2] | |||
| 4507 | 120 | 1/15 | 1/11 | 1/434 | 1/476 | 1/454 | ||||
| 4508 | 125 | 1/15 | 1/4 | 1/11 | Photon peak at 323.3 ns for [8] | |||||
| 4509 | 1/15 | 1/4 | 1/11 | |||||||
| 4510 | 1/12 | 1/4 | 1/9 | 1/13 | 1/387 | 1/371 | 1/409 | 1/228 | unplugged gun pulse around event 300k | |
| 4511 | 1/14 | 1/3.8 | 1/437 | Photon peak at 323 ns for [8] | ||||||
| 4512 | 1/ | 1/3.8 | 1/437 | |||||||