DOI: 10.1016/j.atmosenv.2017.09.048
Scopus记录号: 2-s2.0-85027702888
论文题名: Exploring atmospheric radon with airborne gamma-ray spectroscopy
作者: Baldoncini M ; , Albéri M ; , Bottardi C ; , Minty B ; , Raptis K ; G ; C ; , Strati V ; , Mantovani F
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 170 起始页码: 259
结束页码: 268
语种: 英语
英文关键词: Airborne gamma-ray spectroscopy
; Atmospheric radon vertical profile
; Count rate theoretical modeling
; Lower atmosphere
; χ2 minimization analysis
Scopus关键词: Atmospheric chemistry
; Cosmology
; Gamma ray spectrometers
; Ionizing radiation
; Radiation
; Radioactivity
; Radon
; Spectrum analysis
; Background radioactivity
; Constant components
; Dependent contributions
; Gamma-ray spectroscopy
; Lower atmosphere
; Natural backgrounds
; Theoretical modeling
; Vertical profile
; Gamma rays
; radon
; radon 222
; uranium 238
; airborne survey
; atmospheric modeling
; atmospheric pollution
; gamma ray radiation
; gamma ray spectrometry
; irradiation
; radioactivity
; radon
; vertical profile
; airborne particle
; aircraft
; altitude
; Article
; boundary layer
; cosmic radiation
; electromagnetic radiation
; gamma radiation
; gamma spectrometry
; helicopter
; ionizing radiation
; precipitation
; priority journal
; radiofrequency
; spectroscopy
; theoretical model
; thermodynamics
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: 222Rn is a noble radioactive gas produced along the 238U decay chain, which is present in the majority of soils and rocks. As 222Rn is the most relevant source of natural background radiation, understanding its distribution in the environment is of great concern for investigating the health impacts of low-level radioactivity and for supporting regulation of human exposure to ionizing radiation in modern society. At the same time, 222Rn is a widespread atmospheric tracer whose spatial distribution is generally used as a proxy for climate and pollution studies. Airborne gamma-ray spectroscopy (AGRS) always treated 222Rn as a source of background since it affects the indirect estimate of equivalent 238U concentration. In this work the AGRS method is used for the first time for quantifying the presence of 222Rn in the atmosphere and assessing its vertical profile. High statistics radiometric data acquired during an offshore survey are fitted as a superposition of a constant component due to the experimental setup background radioactivity plus a height dependent contribution due to cosmic radiation and atmospheric 222Rn. The refined statistical analysis provides not only a conclusive evidence of AGRS 222Rn detection but also a (0.96 ± 0.07) Bq/m3 222Rn concentration and a (1318 ± 22) m atmospheric layer depth fully compatible with literature data. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82675
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Physics and Earth Sciences, University of Ferrara, Via Saragat 1, Ferrara, Italy; INFN, Ferrara Section, Via Saragat 1, Ferrara, Italy; Minty Geophysics, PO Box 3299, Weston Creek, ACT, Australia; INFN, Legnaro National Laboratories, Viale dell'Universitá, 2, Legnaro, Padua, Italy
Recommended Citation:
Baldoncini M,, Albéri M,, Bottardi C,et al. Exploring atmospheric radon with airborne gamma-ray spectroscopy[J]. Atmospheric Environment,2017-01-01,170