Sahagia M, Wätjen A C, Luca A, Ivan C
Horia Hulubei National Institute of R&D for Physics and Nuclear Engineering, IFIN-HH, Bucharest, Romania.
Appl Radiat Isot. 2010 Jul-Aug;68(7-8):1266-9. doi: 10.1016/j.apradiso.2009.11.009. Epub 2009 Nov 13.
The paper presents the results obtained in the calibration of the CENTRONIC IG12/20A ionization chamber for 18 gamma ray emitters, and its improvement with a Keithley 6517A electrometer. The calibration figures were determined either directly in pA MBq(-1) units, or calculated from old units, by using the system capacity value. The calibration figures, determined with RML's standards, are compared with those deduced from the KCRV or the mean of the comparisons, and the values determined at PTB-Germany.
本文介绍了CENTRONIC IG12/20A电离室针对18种伽马射线源校准所获得的结果，以及使用吉时利6517A型静电计对其进行的改进。校准系数要么直接以pA MBq(-1)为单位确定，要么通过使用系统电容值从旧单位计算得出。将用RML标准确定的校准系数与从KCRV推导得出的系数或比较均值，以及在德国物理技术研究院（PTB）确定的值进行比较。
