Calibration methodology for proportional counters applied to yield measurements of a neutron burst

15th Latin American Workshop on Plasma Physics; 21st IAEA TM on Research Using Small Fusion Devices

Tarifeño-Saldivia, Ariel^1,2,4 ; Mayer, Roberto E.^3,4 ; Pavez, Cristian^1,2 ; Soto, Leopoldo^1,2

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

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

Comisión Nacional de Energía Atómica, Univ. N. de Cuyo, Argentina^3

PLADEMA, Argentina^4

关键词: Accumulated charge;    Calibration method;    Calibration methodologies;    Neutron bursts;    Pulse modes;    Statistical modeling;    Yield measurement;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/591/1/012025/pdf
DOI  :  10.1088/1742-6596/591/1/012025

来源: IOP

【 摘 要 】

This work introduces a methodology for the yield measurement of a neutron burst using neutron proportional counters. The methodology is based on the calibration of the counter in pulse mode, and the use of a statistical model to estimate the number of detected events from the accumulated charge resulting from detection of the burst of neutrons. An improvement of more than one order of magnitude in the accuracy of a paraffin wax moderated3He-filled tube is obtained by using this methodology with respect to previous calibration methods.