Nuclear Engineering and Technology
- Volume 10 Issue 3
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- Pages.137-144
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- 1978
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- 1738-5733(pISSN)
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- 2234-358X(eISSN)
A Study on the Method of Nonlinearity Correction in a GM Counter
- Ha, Chung-Woo (Korea Atomic Energy Research Institute and Department of Nuclear Engineering, Han Yang University) ;
- Yook, Chong-Chul (Korea Atomic Energy Research Institute and Department of Nuclear Engineering, Han Yang University) ;
- Philip S. Moon (Korea Atomic Energy Research Institute and Department of Nuclear Engineering, Han Yang University)
- Published : 1978.09.01
Abstract
A method is presented here in order to determine a nonlinearity correction of observed counter rates in a GM counter. An expression, which is developed under the assumption of dead time dependence on counting rates, gives good agreement with the results obtained from the experimental work. The variation of pulse voltages from a GM counter with counting rates was measured with the aid of pulse height analyzer. This method gives accurate values for the dead time over a wide range of counting. The technique as outlined allows tile exact correction of the nonlinearity caused by dead time loss. It was observed that the dead time decreases as the counting rate increases.
계측장치에서 관측한 계수율에 대한 비직선성 교정을 결정하는 한 방법을 제시하였다. 불감시간은 계수율이 의존성을 가지고 있다는 가정하에서 발전시킨 한 표현식은 실험결과와 잘 일치하였다. 계측장치의 펄스전압의 계수율에 따른 ,변화량을 파고분석장치를 이용하여 측정 하였다. 이 방법은 광범한 계수율 범위에 걸치어 불감시간에 대한 정착찬 값을 주었다. 개요한 이 측정기술로 불감손실로 인한 비직선성의 정확한 교정할 수 있었다. 불감시간은 계수율이 증가함에 따라 감소하는 것이 관측되었다.
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