title: Conceptual design of a fast-ion D-alpha diagnostic on experimental advanced superconducting tokamak.
abstract: To investigate the fast ion behavior, a fast ion D-alpha (FIDA) diagnostic system has been planned and is presently under development on Experimental Advanced Superconducting Tokamak. The greatest challenges for the design of a FIDA diagnostic are its extremely low intensity levels, which are usually significantly below the continuum radiation level and several orders of magnitude below the bulk-ion thermal charge-exchange feature. Moreover, an overlaying Motional Stark Effect (MSE) feature in exactly the same wavelength range can interfere. The simulation of spectra code is used here to guide the design and evaluate the diagnostic performance. The details for the parameters of design and hardware are presented.
authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, P.O. 1126, 230031 Hefei, Anhui, China.
authors.forename: J
authors.initials: J
authors.lastname: Huang
authors.affiliation: Department of Physics and Astronomy, University of California, Irvine, California 92697, USA.
authors.forename: W W
authors.initials: WW
authors.lastname: Heidbrink
authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, P.O. 1126, 230031 Hefei, Anhui, China.
authors.forename: B
authors.initials: B
authors.lastname: Wan
authors.affiliation: FOM Institute DIFFER, P.O. BOX 1207, Nieuwegein 3430 BE, The Netherlands.
authors.forename: M G
authors.initials: MG
authors.lastname: von Hellermann
authors.affiliation: Department of Physics and Astronomy, University of California, Irvine, California 92697, USA.
authors.forename: Y
authors.initials: Y
authors.lastname: Zhu
authors.affiliation: School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China.
authors.forename: W
authors.initials: W
authors.lastname: Gao
authors.affiliation: School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China.
authors.forename: C
authors.initials: C
authors.lastname: Wu
authors.affiliation: School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Li
authors.affiliation: School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China.
authors.forename: J
authors.initials: J
authors.lastname: Fu
authors.affiliation: School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China.
authors.forename: B
authors.initials: B
authors.lastname: Lyu
authors.affiliation: School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Yu
authors.affiliation: School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Shi
authors.affiliation: School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China.
authors.forename: M
authors.initials: M
authors.lastname: Ye
authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, P.O. 1126, 230031 Hefei, Anhui, China.
authors.forename: L
authors.initials: L
authors.lastname: Hu
authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, P.O. 1126, 230031 Hefei, Anhui, China.
authors.forename: C
authors.initials: C
authors.lastname: Hu