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Measurement of Dead Zone Characteristics of Gas Counter with Gamma-Ray |
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| Abstract: | An evaluation method with uncollimated γ-rays has been proposed for the dead zone of gas counters without entrance windows. The obtained dead zone characteristics for the proportional, SQS and GM modes are almost consistent with those obtained with β-rays. Some difference in the dead zones obtained with γ-rays and β-rays has been discussed. This new method is effective to confirm and improve the operation mode of counters. |
| Keywords: | gas counter self-quenching streamer mode GM counter proportional counter dead zone |