Share Email Print
cover

Proceedings Paper

Uncertainty evaluation of calibration radon chamber
Author(s): Shumin Zhou; Bin Tang
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The uncertainty evaluation of calibration instrument is an important step to evaluate the performance of instrument. The radon chamber is a standard instrument used to calibrate the radon monitors. Because the radioactivity decay and statistical fluctuation of radioactivity measurement, the uncertainty evaluation of radioactivity measurement instrument is different from the general instrument, the uncertainty evaluation of radon chamber should trace to the national reference radium source. In this paper, the two different uncertainty evaluation model of radon concentration based the radon source and radon monitor is described. The uncertainty of different input variables include radon concentration, radioactivity statistical fluctuation, the temperature and humidity is evaluated in evaluation standard Type A or Type B. According to the contribution of different factor to the uncertainty of radon concentration, the expanded and relativity expanded uncertainty of radon chamber is calculated and discussed in detail. Through comparison, the uncertainty evaluation of radon concentration based on radon monitor is better than the model based on radon source.

Paper Details

Date Published: 13 October 2008
PDF: 6 pages
Proc. SPIE 7128, Seventh International Symposium on Instrumentation and Control Technology: Measurement Theory and Systems and Aeronautical Equipment, 712810 (13 October 2008); doi: 10.1117/12.806623
Show Author Affiliations
Shumin Zhou, East China Institute of Technology (China)
Bin Tang, East China Institute of Technology (China)


Published in SPIE Proceedings Vol. 7128:
Seventh International Symposium on Instrumentation and Control Technology: Measurement Theory and Systems and Aeronautical Equipment
Jiancheng Fang; Zhongyu Wang, Editor(s)

© SPIE. Terms of Use
Back to Top