title: 2D profile of poloidal magnetic field diagnosed by a laser-driven ion-beam trace probe (LITP).
abstract: Based on large energy spread of laser-driven ion beam (LIB), a new method, the Laser-driven Ion-beam Trace Probe (LITP), was suggested recently to diagnose the poloidal magnetic field (Bp) and radial electric field (Er) in toroidal devices. Based on another property of LIB, a wide angular distribution, here we suggested that LITP could be extended to get 2D Bpprofile or 1D profile of both poloidal and radial magnetic fields at the same time. In this paper, we show the basic principle, some preliminary simulation results, and experimental preparation to test the basic principle of LITP.
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China.
authors.forename: Xiaoyi
authors.initials: X
authors.lastname: Yang
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China.
authors.forename: Chijie
authors.initials: C
authors.lastname: Xiao
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China.
authors.forename: Yihang
authors.initials: Y
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China.
authors.forename: Tianchao
authors.initials: T
authors.lastname: Xu
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China.
authors.forename: Chen
authors.initials: C
authors.lastname: Lin
authors.affiliation: Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100190, China.
authors.forename: Long
authors.initials: L
authors.lastname: Wang
authors.affiliation: Center for Fusion Science of Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China.
authors.forename: Min
authors.initials: M
authors.lastname: Xu
authors.affiliation: School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230026, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Yu