A new GEM based neutron diagnostic concept for high flux neutron beams

Journal Article · Tue Jun 19 00:00:00 EDT 2012 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4706883· OSTI ID:22068955

Croci, G; Rebai, M; Palma, M Dalla; Gervasini, G; Ghezzi, F; Grosso, G; Murtas, F; Claps, G; Pasqualotto, R; Cippo, E Perelli; Nocente, M; Tardocchi, M; Tollin, M; Cavenago, M; Gorini, G ^[1]

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1. Istituto di Fisica del Plasma, Associazione EURATOM-ENEA-CNR, Milano (Italy)

Fusion-fission hybrid reactors will need high flux neutron detectors to diagnose the deuterium-tritium fusion plasmas as well as the fission reactions. A candidate detection technique is the Gas Electron Multiplier (GEM). New GEM based detectors are being developed for application to a neutral deuterium beam test facility. The proposed detection system is called Close-contact Neutron Emission Surface Mapping (CNESM). The diagnostic aims at providing the map of the neutron emission due to interaction of the deterium beam with the deuterons implanted in the beam dump surface. This is done by placing a detector in close contact, right behind the dump. CNESM uses nGEM detectors, i.e. GEM detectors equipped with a cathode that also serves as neutron-proton converter foil. A small size prototype of nGEM detector has been built and is ready to be tested.

• OSTI ID: 22068955
• Journal Information: AIP Conference Proceedings, Vol. 1442, Issue 1; Conference: International conference on fusion for neutrons and subcritical nuclear fission, Varenna (Italy), 12-15 Sep 2011; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CATHODES
D-T OPERATION
ELECTRON MULTIPLIER DETECTORS
ELECTRON MULTIPLIERS
FISSION
HYBRID REACTORS
MAPPING
NEUTRON BEAMS
NEUTRON DETECTION
NEUTRON DETECTORS
NEUTRON EMISSION
PLASMA
PLASMA DIAGNOSTICS
PROTONS