A neutron diagnostic based on Gas Electron Multiplier is proposed for the MITICA beam injector test facility. The detection system is called Close-contact Neutron Emission Surface Mapping (CNESM) and aims at providing the beam intensity profile on the horizontal direction by measuring the neutron emission from the beam dump surface by placing a detector right behind the dump. CNESM uses Gas Electron Multiplier detectors equipped with a cathode that also serves as neutron-proton converter foil, named nGEM. The cathode, made of a thin polythene film and an aluminium film, is designed for detection of neutrons emitted with and angle between 30 and 70 degrees with respect to the deuterium beam axis. Neutron scattering in the dump and neutron detection with the nGEM were simulated with the MCNP6.1.1 code.

Rebai, M., Croci, G., Grosso, G., Muraro, A., Cippo, E., Tardocchi, M., et al. (2017). Conceptual design of a neutron diagnostic for 2-D deuterium power density map reconstruction in MITICA. JOURNAL OF INSTRUMENTATION, 12(1), C01007-C01007 [10.1088/1748-0221/12/01/C01007].

Conceptual design of a neutron diagnostic for 2-D deuterium power density map reconstruction in MITICA

REBAI, MARICA
Primo
;
CROCI, GABRIELE
Secondo
;
GROSSO, GIORGIA;MURARO, ANDREA;TARDOCCHI, MARCO;GORINI, GIUSEPPE
Ultimo
2017

Abstract

A neutron diagnostic based on Gas Electron Multiplier is proposed for the MITICA beam injector test facility. The detection system is called Close-contact Neutron Emission Surface Mapping (CNESM) and aims at providing the beam intensity profile on the horizontal direction by measuring the neutron emission from the beam dump surface by placing a detector right behind the dump. CNESM uses Gas Electron Multiplier detectors equipped with a cathode that also serves as neutron-proton converter foil, named nGEM. The cathode, made of a thin polythene film and an aluminium film, is designed for detection of neutrons emitted with and angle between 30 and 70 degrees with respect to the deuterium beam axis. Neutron scattering in the dump and neutron detection with the nGEM were simulated with the MCNP6.1.1 code.
Articolo in rivista - Articolo scientifico
Scientifica
Neutral Beam Injector for ITER
English
Rebai, M., Croci, G., Grosso, G., Muraro, A., Cippo, E., Tardocchi, M., et al. (2017). Conceptual design of a neutron diagnostic for 2-D deuterium power density map reconstruction in MITICA. JOURNAL OF INSTRUMENTATION, 12(1), C01007-C01007 [10.1088/1748-0221/12/01/C01007].
Rebai, M; Croci, G; Grosso, G; Muraro, A; Cippo, E; Tardocchi, M; Palma, M; Pasqualotto, R; Tollin, M; Murtas, F; Cavenago, M; Gorini, G
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/146378
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