Absolute Calibration of Proportional Counter Based Fast Pulsed Neutron Detectors with Resolution Below 105 neutron/pulse

15th International Congress on Plasma Physics; 13th Latin American Workshop on Plasma Physics

Tarifeño-Saldivia, A.^2,5 ; Mayer, R.E.^3,4 ; Pavez, C.^1,2 ; Soto, L.^1,2

Comisión Chilena de Energfa Nuclear, Casilla 188-D, Santiago, Chile^1

Center for Research and Applications in Plasma Physics, Pulsed Power P4, Chile^2

Centro Atómico Bariloche, Comisión National de Energfa Atómic, Argentina^3

PLADEMA, Argentina^4

Universidad de Concepción, Chile^5

关键词: Absolute calibration;    Background noise;    Counting statistics;    Fast neutrons;    Low emission;    Neutron pulse;    Plasma focus devices;    Standard sources;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/511/1/012087/pdf
DOI  :  10.1088/1742-6596/511/1/012087

来源: IOP

【 摘 要 】

A method for absolute calibration of proportional counters for pulsed fast neutrons is presented. The method is based on the use of an isotopic standard source and development of a model for counting detected events from area of a signal compounded by single piled up neutron pulses. Effects of detection counting statistics and electrical background noise are also considered. The method is applied in detectors used for D-D neutron yield measurements in low emission plasma focus devices.