Nuclear design of a shielded cabinet for electronics: The ITER radial neutron camera case study

被引：0

作者：

Moro, F. ^{[1
]}

Marocco, D. ^{[1
]}

Belli, F. ^{[1
]}

Bocian, D. ^{[2
]}

Brolatti, G. ^{[1
]}

Centioli, C. ^{[1
]}

Colangeli, A. ^{[1
]}

Mambro, G. Di ^{[3
]}

Flammini, D. ^{[1
]}

Fonnesu, N. ^{[1
]}

Gandolfo, G. ^{[1
]}

Kantor, R. ^{[4
]}

Kotula, J. ^{[2
]}

Maffucci, A. ^{[3
]}

Mariano, G. ^{[1
]}

Marzullo, D. ^{[5
]}

Ortwein, R. ^{[2
]}

Podda, S. ^{[1
]}

Pompili, F. ^{[1
]}

Riva, M. ^{[1
]}

Sancristobal, D. ^{[6
]}

Villari, R. ^{[1
]}

Esposito, B. ^{[1
]}

机构：

[1] ENEA, Dept Fus & Nucl Safety Technol, I-00044 Frascati, Rome, Italy

[2] Polish Acad Sci, Inst Nucl Phys, Ul Radzikowskiego 152, PL-31342 Krakow, Poland

[3] Univ Cassino & Southern Lazio, Elect & Informat Engn Dept, I-03043 Cassino, Fr, Italy

[4] Cracow Univ Technol, Ul Warszawska 24, PL-31155 Krakow, Poland

[5] Trieste Univ, Dept Engn & Architecture, I-34127 Trieste, Italy

[6] IDOM Sa, Ave Fama 11-15, Cornellade Llobregat 08940, Barcelona, Spain

来源：

FUSION ENGINEERING AND DESIGN | 2023年 / 191卷

关键词：

Neutron diagnostics; Radial neutron camera; ITER; Neutronics; Electronics; MCNP;

D O I：

10.1016/j.fusengdes.2023.113542

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 Radial Neutron Camera (RNC) is a diagnostic system located in ITER Equatorial Port #1 providing several spatial and time-resolved parameters for the fusion power estimation, plasma control and physics studies. The RNC measures the uncollided 14 MeV and 2.5 MeV neutrons from deuterium-tritium (DT) and deuterium -deuterium (DD) fusion reactions through an array of neutron flux detectors located in collimated Lines of Sight. Signals from RNC detectors (fission chambers, single Crystal Diamonds and scintillators) need pre -amplification because of their low amplitude. These preamplifiers have to be as close as possible to the detectors in order to minimize signal degradation and must be protected against fast and thermal neutrons, gamma ra-diation and electromagnetic fields. The solution adopted is to host the preamplifiers in a shielded cabinet located in a dedicated area of the Port Cell, behind the Bioshield Plug. The overall design of the cabinet must ensure the necessary magnetic, thermal and nuclear shielding and, at the same, satisfy weight and allocated volume con-straints and maintain its structural integrity. The present paper describes the nuclear design of the shielded cabinet, performed by means of 3D particle transport calculations (MCNP), taking into account the radiation streaming through the Bioshield penetrations and the cross-talk effect from the neighboring Lower and Upper Ports. We present the assessment of its nuclear shielding performances and analyze the compliancy with the alert thresholds for commercial electronics in terms of neutron flux and cumulated ionizing dose.

引用

页数：6

共 13 条

[1]

[Anonymous], 2018, FENDL 3 1D FUSION EV

[2]

Dentan M., 2000, P 6 WORKSH EL LHC EX, P270, DOI [10.5170/CERN-2000-010.270, DOI 10.5170/CERN-2000-010.270]

[3] Progress of Design and Development for the ITER Radial Neutron Camera [J].

Esposito, B. ;

Marocco, D. ;

Gandolfo, G. ;

Belli, F. ;

Bertalot, L. ;

Blocki, J. ;

Bocian, D. ;

Brolatti, G. ;

Cecconello, M. ;

Centioli, C. ;

Pereira, R. C. ;

Conroy, S. ;

Crescenzi, F. ;

Cruz, N. ;

de Bilbao, L. ;

Domenicone, A. ;

Ducasse, Q. ;

Di Mambro, G. ;

Dongiovanni, D. ;

Eletxigerra, I ;

Etxeita, B. ;

Fernandez, A. ;

Ficker, O. ;

Gallina, P. ;

Giacomin, T. ;

Ginoulhiac, G. ;

Godlewski, J. ;

Hjalmarsson, A. ;

Imrisek, M. ;

Kantor, R. ;

Kasprzak, K. ;

Kotula, J. ;

Krasilnikov, V ;

Lewandowska, M. ;

Maffucci, A. ;

Marotta, U. ;

Marzullo, D. ;

Mazzitelli, G. ;

Mazzone, G. ;

Miklaszewski, R. ;

Mikszuta-Michalik, K. ;

Maciocha, W. ;

Magagnino, S. ;

Misano, M. ;

Mlynar, J. ;

Monti, C. ;

Moro, F. ;

Ortwein, R. ;

Passeri, M. ;

Pinna, T. .

JOURNAL OF FUSION ENERGY, 2022, 41 (02)

[4]

Fabbri M., IWW GVR TOOL MANIPUL

[5] The ITER tokamak neutronics reference model C-Model [J].

Leichtle, Dieter ;

Colling, Bethany ;

Fabbri, Marco ;

Juarez, Rafael ;

Loughlin, Michael ;

Pampin, Raul ;

Polunovskiy, Eduard ;

Serikov, Arkady ;

Turner, Andrew ;

Bertalot, Luciano .

FUSION ENGINEERING AND DESIGN, 2018, 136 :742-746

[6] Neutron measurements in ITER using the Radial Neutron Camera [J].

Marocco, D. ;

Esposito, B. ;

Moro, F. .

JOURNAL OF INSTRUMENTATION, 2012, 7

[7] Combined unfolding and spatial inversion of neutron camera measurements for ion temperature profile determination in ITER [J].

Marocco, D. ;

Esposito, B. ;

Moro, F. .

NUCLEAR FUSION, 2011, 51 (05)

[8]

Marocco D., 2016, P 26 IAEA FUS EN C K

[9] Nuclear Analyses for the Assessment of the Loads on the ITER Radial Neutron Camera In-Port System and Evaluation of Its Measurement Performances [J].

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

[10] The ITER radial neutron camera in-port system: Nuclear analyses in support of its design development [J].

Moro, Fabio ;

Esposito, Basilio ;

Marocco, Daniele ;

Podda, Salvatore ;

Pompili, Fulvio ;

Riva, Marco ;

Flammini, Davide ;

Colangeli, Andrea ;

Kantor, Ryszard .

FUSION ENGINEERING AND DESIGN, 2019, 146 :236-241

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