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	Analysis of radiation environmental safety for china's spallation neutron source (csns)
	Wang Qing-Bin; Wu Qing-Biao; Ma Zhong-Jian; Zhang Qing-Jiang; Li Nan; Wu Jing-Min; Liu Jian; Zhang Gang
刊名	Chinese physics c
	2010-07-01
卷号	34期号:7页码:1029-1036
关键词	China spallation neutron source Environmental safety Effective dose Specific activity
ISSN号	1674-1137
通讯作者	Wang qing-bin(qbwang@ihep.ac.cn)
英文摘要	The china spallation neutron source (csns) is going to be located in dalang town, dongguan city in the guangdong province. in this paper we report the results of the parameters related with environment safety based on experiential calculations and monte carlo simulations. the main project of the accelerator is an under ground construction. on top there is a 0.5 m concrete and 5.0 m soil covering for shielding, which can reduce the dose out of the tunnel's top down to 0.2 mu sv/h. for the residents on the boundary of the csns; the dose produced by skyshine, which is caused by the penetrated radiation leaking from the top of the accelerator; is no more than 0.68 mu sv/a. when csns is operating normally, the maximal annual effective dose due to the emission of gas from the tunnel is 2.40 x 10(-3) msv/a to the public adult, arid 2.29 x 10(-3) msv/a to a child; both values are two orders of magnitude less than the limiting value for control and management. csns may give rise to an activation of the soil and groundwater in the nearest tunnels, where the main productions are (3)h, (7)be, (22)na, (54)mn, etc. but the specific activity is less than the exempt specific activity in the national standard gb13376-92. so it is safe to say that the environmental impact caused by the activation of soil and groundwater is insignificant. to sum up, for csns, as a powerful neutron source device, driven by a high-energy high-current proton accelerator, a lot of potential factors affecting the environment exist. however, as long as effective shieldings for protection are adopted and strict rules are drafted, the environmental impact can be kept under control within the limits of the national standard.
WOS研究方向	Physics
WOS类目	Physics, Nuclear ; Physics, Particles & Fields
语种	英语
出版者	CHINESE PHYSICAL SOC
WOS记录号	WOS:000279462900019
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2175970
专题	高能物理研究所
通讯作者	Wang Qing-Bin
作者单位	CAS, Inst High Energy Phys, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang Qing-Bin,Wu Qing-Biao,Ma Zhong-Jian,et al. Analysis of radiation environmental safety for china's spallation neutron source (csns)[J]. Chinese physics c,2010,34(7):1029-1036.
APA	Wang Qing-Bin.,Wu Qing-Biao.,Ma Zhong-Jian.,Zhang Qing-Jiang.,Li Nan.,...&Zhang Gang.(2010).Analysis of radiation environmental safety for china's spallation neutron source (csns).Chinese physics c,34(7),1029-1036.
MLA	Wang Qing-Bin,et al."Analysis of radiation environmental safety for china's spallation neutron source (csns)".Chinese physics c 34.7(2010):1029-1036.

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