铑自给能中子探测器的灵敏度

Sensitivities of Rhodium Self-powered Neutron Detector

本文给出了铑自给能探测器的热中子灵敏度和中子灵敏度的理论计算公式、燃耗修正公式以及不同中子温度下的换算公式。运用这些公式对ZTRh 123型铑自给能探测器的热中子灵敏度和中子灵敏度进行了理论计算,并在反应堆中对其进行了实验验证。其结果表明,理论计算值和实验标定值是相吻合的。其偏差:热中子灵敏度为8.5％,中子灵敏度为3.9％。

In this paper the theoretical calculation formulas for thermal neutron sensitivity and neutron sensitivity, the burn-up correction equations, and reduction formulas at different neutron temperature of rhodium self-powered in-core neutron detector are given. These formulas have been used in theoretical calculation for thermal neutron sensitivity and neutron sensitivity of type ZTRh123 rhodium self-powered detector, and experimentally verified in reactor. The results have indicated that the theoretical velues agreed with the experimental values: the deviation is 8.5% for thermal neutron sensitivity and 3.9% for neutron sensitivity.