Difference between revisions of "2n BKG data"
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| + | BKG effect investigated with the paddle detector: | ||
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<math>I_{e^-} = 30 mA</math>, <math>Pw=20 ns</math>, <math>R=300Hz</math>, <math>E_{e^-}=10.5 MeV</math> | <math>I_{e^-} = 30 mA</math>, <math>Pw=20 ns</math>, <math>R=300Hz</math>, <math>E_{e^-}=10.5 MeV</math> | ||
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Detector G: HV(G1) = -1700 V, HV(G2) = -1650 V. | Detector G: HV(G1) = -1700 V, HV(G2) = -1650 V. | ||
| − | There was 2" of lead in front of the Det G. Det G was on the floor. | + | There was 2" of lead in front of the Det G. Det G was placed on the floor. |
Case A: Target out, radiator in - Counting rate (G1) = 1/168 (gammas/pulse) | Case A: Target out, radiator in - Counting rate (G1) = 1/168 (gammas/pulse) | ||
Case B: Target out, radiator in, downstream collimator blocked - Counting rate (G1) = 1/485 (gammas/pulse) | Case B: Target out, radiator in, downstream collimator blocked - Counting rate (G1) = 1/485 (gammas/pulse) | ||
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| + | ---- | ||
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| + | The BKG measured with "Ilyusha" | ||
| + | |||
| + | [[File:HRRL_BKG_study.jpeg | 600 px]] | ||
Latest revision as of 23:12, 7 December 2012
BKG effect investigated with the paddle detector:
, , ,
Upstream collimator diamater = 0.25"
Downstream collimator diamater = 2.0"
2 Al sheets as bremsstrahlung radiator;
Detector G: HV(G1) = -1700 V, HV(G2) = -1650 V.
There was 2" of lead in front of the Det G. Det G was placed on the floor.
Case A: Target out, radiator in - Counting rate (G1) = 1/168 (gammas/pulse)
Case B: Target out, radiator in, downstream collimator blocked - Counting rate (G1) = 1/485 (gammas/pulse)
The BKG measured with "Ilyusha"
