title: Monte Carlo simulation of a Bonner sphere spectrometer for application to the determination of neutron field in the Experimental Advanced Superconducting Tokamak experimental hall.
abstract: To assess the neutron energy spectra and the neutron dose for different positions around the Experimental Advanced Superconducting Tokamak (EAST) device, a Bonner Sphere Spectrometer (BSS) was developed at Peking University, with totally nine polyethylene spheres and a SP9 (3)He counter. The response functions of the BSS were calculated by the Monte Carlo codes MCNP and GEANT4 with dedicated models, and good agreement was found between these two codes. A feasibility study was carried out with a simulated neutron energy spectrum around EAST, and the simulated "experimental" result of each sphere was obtained by calculating the response with MCNP, which used the simulated neutron energy spectrum as the input spectrum. With the deconvolution of the "experimental" measurement, the neutron energy spectrum was retrieved and compared with the preset one. Good consistence was found which offers confidence for the application of the BSS system for dose and spectrum measurements around a fusion device.
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
authors.forename: Z M
authors.initials: ZM
authors.lastname: Hu
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
authors.forename: X F
authors.initials: XF
authors.lastname: Xie
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
authors.forename: Z J
authors.initials: ZJ
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
authors.forename: X Y
authors.initials: XY
authors.lastname: Peng
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
authors.forename: T F
authors.initials: TF
authors.lastname: Du
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
authors.forename: Z Q
authors.initials: ZQ
authors.lastname: Cui
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
authors.forename: L J
authors.initials: LJ
authors.lastname: Ge
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
authors.forename: T
authors.initials: T
authors.lastname: Li
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
authors.forename: X
authors.initials: X
authors.lastname: Yuan
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
authors.forename: X
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Institute of Plasma Physics, CAS, Hefei 230031, China.
authors.forename: L Q
authors.initials: LQ
authors.lastname: Hu
authors.affiliation: Institute of Plasma Physics, CAS, Hefei 230031, China.
authors.forename: G Q
authors.initials: GQ
authors.lastname: Zhong
authors.affiliation: Institute of Plasma Physics, CAS, Hefei 230031, China.
authors.forename: S Y
authors.initials: SY
authors.lastname: Lin
authors.affiliation: Institute of Plasma Physics, CAS, Hefei 230031, China.
authors.forename: B N
authors.initials: BN
authors.lastname: Wan
authors.affiliation: Dipartimento di Fisica, Università di Milano-Bicocca, Milano 20126, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Gorini
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
authors.forename: X Q
authors.initials: XQ
authors.lastname: Li
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
authors.forename: G H
authors.initials: GH
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
authors.forename: J X
authors.initials: JX
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
authors.forename: T S
authors.initials: TS
authors.lastname: Fan