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| 内充气电离室相对测氡标准装置 | |
| 引用本文： | 张怀钦,邢雨,敬凡兰,郝秀红. 内充气电离室相对测氡标准装置[J]. 原子能科学技术, 1998, 0(4) |
| 作者姓名： | 张怀钦 邢雨 敬凡兰 郝秀红 |
| 作者单位： | 中国原子能科学研究院放射性计量测试部 |
| 摘 要： | 本标准装置包括有效体积为１．９４Ｌ和１．５４Ｌ的电离室、可编程静电计、高压电源以及可进行数据获取及处理的微机系统。采用标准液体镭源进行刻度，通过一系列实验对各种因素的影响作了测量。测得的电离室刻度系数分别为２４．６２、２３．９０Ｂｑ／ｐＡ，电离室电离电流测量不确定度（２σ）＜２％。 |
| 关 键 词： | 刻度 内充气电离室 活度测量 氡及其子体 标准装置 |
THE RELATIVE STANDARD SYSTEM FOR RADON MEASUREMENT BY INTERNAL GAS IONIZATION CHAMBER |
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| Zhang Huaiqin Xing Yu Jing Fanlan Hao Xiuhong. THE RELATIVE STANDARD SYSTEM FOR RADON MEASUREMENT BY INTERNAL GAS IONIZATION CHAMBER[J]. Atomic Energy Science and Technology, 1998, 0(4) | |
| Authors: | Zhang Huaiqin Xing Yu Jing Fanlan Hao Xiuhong |
| Abstract: | This system consists of internal gas ionization chambers(IC 1 #(volume 1 94 L), IC 2 #(volume 1 54 L)), the Keithley 617 programmable electrometer, a computer with an interface to control it and some programmes for data acquiring and processing in different conditions. The system is calibrated with a standard liquid 226 Ra source. The influence factors are tested through a series of experiments, and the uncertainties are also considered. The calibration factors are 24 62 Bq/pA(IC 1 #) and 23 90 Bq/pA(IC 2 #), respectively. |
| Keywords: | Calibration Internal gas ionization chamber Activity measurement Radon and its decay products Standard system |
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