Research on the perturbation phenomenon while tracing the radon concentration in real time
Research on the perturbation phenomenon while tracing the radon concentration in real time
复制标题
实时追踪氡浓度时的摄动现象研究
DOI:
10.1007/s00477-014-0900-9
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发表时间:
2015-03
影响因子:
4.2
通讯作者:
单健
中科院分区:
文献类型:
--
作者:
谭延亮;肖德涛;唐泉;单健
Generally, researchers are interested in time averaged radon concentration levels. However when we study the migration and adsorption characteristics of radon, the measurement of radon concentration in real time is important. Radon monitors based on electrostatic collection method cannot follow the rapid changes in radon concentration. The main reason for this is that a sufficient decay time is needed in order for the radon concentration in the internal cell of radon monitor to come to equilibrium with the218Po. We propose a novel algorithm for determining the actual radon concentration versus time, derived from the data provided by the radon monitor. However there is a distinct ‘perturbation’ phenomenon associated with this procedure when the measurement cycle time is short. In this paper we will also analyze the source of this perturbation phenomenon and provide an improved process model, based upon a faster convergence method that enables reduction of this perturbation to acceptable limits. This model can be used to improve the measurements for any radon monitor like Rad7 based on electrostatic collection for tracing the radon concentration on short measurement cycles.
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DOI:
10.1016/j.apradiso.2009.07.023
发表时间:
2009-11
期刊:
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine
影响因子:
--
作者:
P. Kolarž;D. Filipović;B. Marinković
通讯作者:
P. Kolarž;D. Filipović;B. Marinković
DOI:
10.1063/1.1136214
发表时间:
1980-03
期刊:
The Review of scientific instruments
影响因子:
--
作者:
S. Schery;D. Gaeddert;M. Wilkening
通讯作者:
S. Schery;D. Gaeddert;M. Wilkening
DOI:
10.1007/s00477-007-0148-8
发表时间:
2007-05
影响因子:
4.2
作者:
M. Tiefelsdorf
通讯作者:
M. Tiefelsdorf
DOI:
10.1007/s00477-010-0367-2
发表时间:
2010-02
影响因子:
4.2
作者:
J. Shen;M. Biglari;Changbo Jiang;Honghai Wu
通讯作者:
J. Shen;M. Biglari;Changbo Jiang;Honghai Wu
DOI:
10.1063/1.3572271
发表时间:
2011-04
期刊:
The Review of scientific instruments
影响因子:
--
作者:
Y. Tan;D. Xiao
通讯作者:
Y. Tan;D. Xiao