The temperature dependence of adsorption coefficients of (222)Rn on activated charcoal: an experimental study.

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Abstract

The radon adsorption coefficient of activated charcoal (K) has exponential relationship with temperature theoretically, but few experiment results of K at temperature below 0 ℃ were given. In this study, K were measured using a flow-through system with activated charcoal in cylindrical adsorption beds at temperature adjusted from room temperature to -48°C using liquid nitrogen. Results are consistent with theory and show that the adsorption coefficient at -48°C is nearly 25 times higher than that at 23 ℃.

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Author and article information

Journal

Journal ID (iso-abbrev): Appl Radiat Isot

Title: Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

Publisher: Elsevier BV

ISSN (Electronic): 1872-9800

ISSN (Print): 0969-8043

Publication date (Electronic): Jul 2017

Volume: 125

Affiliations

[1 ] State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China.

[2 ] State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China; State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China. Electronic address: swofely@pku.edu.cn.

[3 ] Key Laboratory of Particle and Radiation Imaging, Department of Engineer Physics, Tsinghua University, Beijing 100084, China.

[4 ] Dalian Naval Academy, Dalian 116018, China.

Article

Publisher Item ID: S0969-8043(16)31046-6

DOI: 10.1016/j.apradiso.2017.04.023

PubMed ID: 28472745

SO-VID: 69d4d7b9-fa9a-4d4b-a0c1-f0f4b2a8b2ff

History

Keywords: Activated charcoal,Adsorption coefficient,Radon,Temperature dependence

Data availability:

Keywords: Activated charcoal, Adsorption coefficient, Radon, Temperature dependence

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