Neutronic analysis and measurement performance assessment of ITER neutron flux monitor system

被引：0
|
作者：
Wen, Zuowei [1 ]
Yuan, Guoliang [1 ]
Li, Yong [1 ]
Yang, Qingwei [1 ]
Li, Jun [1 ]
Zhao, Li [1 ]
Wei, Lingfeng [1 ]
Zhang, Jinwen [1 ]
机构：
[1] Southwestern Inst Phys, Chengdu 610041, Sichuan, Peoples R China
来源：
FUSION ENGINEERING AND DESIGN | 2023年 / 187卷
关键词：
ITER; Neutron flux monitor; Fission chamber; MCNP; CALIBRATION; DETECTORS;
D O I：
10.1016/j.fusengdes.2022.113364
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The ITER Neutron Flux Monitor (NFM) system consists of four subsystems located at ITER Equatorial Ports 1#, 7#, 8#, and 17#. NFM system carries out the measurement of total neutron yield and fusion power by employing 235U fission chambers. The total neutron yield to be measured spans a range of 7 orders of magnitude - from 1014 to 3.2 x 1020 n/s. Suitable moderator and detectors were selected to cover such a wide range of neutron yield and meet the requirements of time resolution and accuracy. Moderators and detectors' sensitivities of NFM system are reasonably designed. The detectors' sensitivities of the NFM#01 system under different moderators have been calculated with MCNP code, and graphite serves as the optimal moderator. The detectors' sensitivities of the other three NFM subsystems have also been simulated simultaneously. Based on the required sensitivities of detector, the appropriate mass of 235U was selected for each fission chamber. According to the analysis of the measurement range of each NFM subsystem, it is finally confirmed that the measurement performance of the NFM system can meet the requirements well.
引用
收藏
页数：5
相关论文
共 50 条
  • [41] The system of compact diamond spectrometers and neutron flux monitors for vertical neutron camera of international thermonuclear,experimentalreactor ITER
    Amosov, V.N.
    Meshchaninov, S.A.
    Rodionov, N.B.
    Applied Physics, 2011, (04): : 104 - 108
  • [42] BETA/L' MEASUREMENT BY NEUTRON FLUX NOISE ANALYSIS
    OSNAGHI, S
    POSSA, G
    RIMINI, A
    ENERGIA NUCLEARE, 1968, 15 (09): : 578 - &
  • [43] Nuclear Analyses for the Assessment of the Loads on the ITER Radial Neutron Camera In-Port System and Evaluation of Its Measurement Performances
    Moro, Fabio
    Marocco, Daniele
    Belli, Francesco
    Brolatti, Giorgio
    Colangeli, Andrea
    Crescenzi, Fabio
    Flammini, Davide
    Fonnesu, Nicola
    Gandolfo, Giada
    Kantor, Ryszard
    Mariano, Giovanni
    Marzullo, Domenico
    Podda, Salvatore
    Sancristobal, Dustin
    Villari, Rosaria
    Esposito, Basilio
    IEEE TRANSACTIONS ON PLASMA SCIENCE, 2022, 50 (11) : 4150 - 4156
  • [44] Ni-Cr alloy as neutron flux monitor:: Composition and homogeneity assessment by NAA
    França, EJ
    Fernandes, EAD
    Bacchi, MA
    JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2003, 257 (01) : 113 - 115
  • [45] Ni-Cr Alloy as Neutron Flux Monitor: Composition and Homogeneity Assessment by NAA
    E.J. França
    E.A. De Nadai Fernandes
    M.A. Bacchi
    Journal of Radioanalytical and Nuclear Chemistry, 2003, 257 : 113 - 115
  • [46] Acceptance plan and performance measurement methodology for the ITER cryoline system
    Badgujar, S.
    Bonneton, M.
    Shah, N.
    Chalifour, M.
    Chang, H. -S.
    Fauve, E.
    Forgeas, A.
    Navion-Maillot, N.
    Sarkar, B.
    PROCEEDINGS OF THE 25TH INTERNATIONAL CRYOGENIC ENGINEERING CONFERENCE AND INTERNATIONAL CRYOGENIC MATERIALS CONFERENCE 2014, 2015, 67 : 48 - 53
  • [47] Impact of the layout of the ITER Radial Neutron Camera in-port system on the measurement of the neutron emissivity profile
    Marocco, D.
    Moro, F.
    Esposito, B.
    Brolatti, G.
    Villari, R.
    Salasca, S.
    Cantone, B.
    FUSION ENGINEERING AND DESIGN, 2013, 88 (6-8) : 1371 - 1376
  • [48] THE USE OF KNOWN FE CONTENT AS A FLUX MONITOR IN NEUTRON-ACTIVATION ANALYSIS
    CHAPPELL, BW
    HERGT, JM
    CHEMICAL GEOLOGY, 1989, 78 (02) : 151 - 158
  • [49] Absolute measurement of D-T neutron flux with a monitor using activation of flowing water
    Uno, Y
    Kaneko, J
    Nishitani, T
    Maekawa, F
    Tanaka, T
    Shibata, S
    Ikeda, Y
    Khripunov, V
    Walker, C
    Ebisawa, K
    Takeuchi, H
    FUSION ENGINEERING AND DESIGN, 2001, 56-57 (56-57) : 895 - 898
  • [50] Neutron Transport Analysis of the Processes Affecting the in situ Calibration of ITER In-Vessel Neutron Flux Monitors Equipped with a Micro-Fission Chamber System
    Ishikawa, Masao
    Kondoh, Takashi
    Takeda, Keigo
    Itami, Kiyoshi
    PLASMA AND FUSION RESEARCH, 2016, 11
12345