CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Dose rate distribution of photoneutrons in an ID beamline of SSRF: simulations and measurements
Xu, JQ; Xia, XB; Sheng, YXZ; Shen, WZ; Xu, XJ; xiaxiaobin@sinap.ac.cn
2014
Source PublicationNUCLEAR SCIENCE AND TECHNIQUES
ISSN1001-8042
Volume25Issue:5
AbstractPhotoneutrons, emitted by means of photonuclear interactions when gas bremsstrahlung interacts with beamline components, can be another potential radiation source needed to be considered for shielding design and dose assessment of beamline. In this paper, simulations and measurements of photoneutrons dose rate at beamline BL09U are carried out when Shanghai Synchrotron Radiation Facility (SSRF) running at Top-up mode (3.5 GeV, 235 mA). A geometry model is constructed for the beamline BL09U with considerations of the scattering process of the major optical components. The model is compiled into Monte Carlo simulation code FLUKA to calculate photoneutron dose, distribution. Measurements of the photoneutrons dose rate were performed by using Environmental Neutron Monitor (ENM): Observation points were arranged uniformly along the inside and outside of the optical enclosure (OE) of BL09U. The calculation results agree with experiments within the measurements uncertainties. It is verified that photoneutrons dose simulation is reliable. The simulation and measurement methods can be applied to evaluate the neutron dose level of other beamline stations, and provide references for the shielding design of the beamlines at SSRF in the near future.
KeywordElectron Storage-rings Gas Bremsstrahlung Code
Indexed BySCI
Language英语
WOS IDWOS:000344447300001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/14091
Collection中科院上海应用物理研究所2011-2019年
Corresponding Authorxiaxiaobin@sinap.ac.cn
Recommended Citation
GB/T 7714
Xu, JQ,Xia, XB,Sheng, YXZ,et al. Dose rate distribution of photoneutrons in an ID beamline of SSRF: simulations and measurements[J]. NUCLEAR SCIENCE AND TECHNIQUES,2014,25(5).
APA Xu, JQ,Xia, XB,Sheng, YXZ,Shen, WZ,Xu, XJ,&xiaxiaobin@sinap.ac.cn.(2014).Dose rate distribution of photoneutrons in an ID beamline of SSRF: simulations and measurements.NUCLEAR SCIENCE AND TECHNIQUES,25(5).
MLA Xu, JQ,et al."Dose rate distribution of photoneutrons in an ID beamline of SSRF: simulations and measurements".NUCLEAR SCIENCE AND TECHNIQUES 25.5(2014).
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