干旱区生态环境知识资源中心(Arid): 就地HPGe谱仪测量分析长白山土壤中的~(137)Cs等gamma核素

Arid

	就地HPGe谱仪测量分析长白山土壤中的~(137)Cs等gamma核素
其他题名	In Situ Measurement and Analysis of ~(137)Cs and Other gamma-emitting Radionuclides in Soil of Changbai Mountain by HPGe Spectrometer
	吴永乐; 吴彩霞; 柳加成; 邱学军; 谭彬; 杨斌; 岳会国; 刘巧凤
来源期刊	原子能科学技术
ISSN	1000-6931
出版年	2018
卷号	52 期号:10 页码:1861-1866
中文摘要	长白山是欧亚大陆东缘的最高山系,是首批国家级自然保护区,自然环境受人类扰动较少,能较好地反映全球大气核试验、前苏联切尔诺贝利核事故在长白山地区沉降的~(137)Cs量。为调查~(137)Cs经多年衰变和迁移后在长白山土壤中的分布规律,本文利用就地HPGe gamma谱仪测量分析了长白山主峰北坡、南坡及西坡的高山荒漠带、苔原带、岳桦林带、针叶林带等土壤中~(238)U、~(232)Th、~(40)K和~(137)Cs的活度浓度。结果表明,火山灰覆盖的区域,土壤中的~(238)U和~(232)Th等天然放射性核素含量较高,最高值分别为112 Bq/kg和154 Bq/kg;植被茂盛、地势平坦区域~(137)Cs活度浓度较高,最高为1.07*10~4 Bq/m~2。
英文摘要	Changbai Mountain, which is the highest mountain located on the eastern edge of Eurasia, was set up as the first National Nature Reserve. Due to little interferences of human activities, the soil of the Changbai Mountain could reflect the artifical nuclides of ~(137)Cs deposited on the ground from global atmospheric nuclear tests and Chernobyl nuclear accident. To investigate the distribution pattern of ~(137)Cs in Changbai Mountain soil after years of decay and migration, in situ gamma-ray spectrometer was applied to measure the gamma-emitting radionuclides in soil of the desert regions, tundra regions, birch forest regions and conifer forest regions of northern slope, southern slope and western slope. The results show that the contents of ~(238)U and ~(232)Th maintain a relative high level in the region covered by volcanic ash. The maximum values reach 112 Bq/kg and 154 Bq/kg for ~(238)U and ~(232)Th, respectively. The activity concentration of ~(137)Cs maintains a relative high level in the flat and lush vegetative terrain. The maximum value of activity concentration is up to 1.07*10~4 Bq/m~2.
中文关键词	就地gamma谱仪 ; 长白山 ; 活度浓度
英文关键词	~(137)Cs in situ gamma-ray spectrometer Changbai Mountain ~(137)Cs radioactivity concentration
语种	中文
国家	中国
收录类别	CSCD
WOS类目	NUCLEAR SCIENCE TECHNOLOGY
WOS研究方向	Nuclear Science & Technology
CSCD记录号	CSCD:6349898
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238601
作者单位	环境保护部核与辐射安全中心, 北京 100082, 中国
推荐引用方式 GB/T 7714	吴永乐,吴彩霞,柳加成,等. 就地HPGe谱仪测量分析长白山土壤中的~(137)Cs等gamma核素[J],2018,52(10):1861-1866.
APA	吴永乐.,吴彩霞.,柳加成.,邱学军.,谭彬.,...&刘巧凤.(2018).就地HPGe谱仪测量分析长白山土壤中的~(137)Cs等gamma核素.原子能科学技术,52(10),1861-1866.
MLA	吴永乐,et al."就地HPGe谱仪测量分析长白山土壤中的~(137)Cs等gamma核素".原子能科学技术 52.10(2018):1861-1866.