Progress on the realization of a new GEM based neutron diagnostic concept for high flux neutron beams

Journal Article · Thu Aug 21 00:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4894052· OSTI ID:22308290

Croci, G.; Tardocchi, M. ^[1]; Rebai, M.; Cippo, E. Perelli; Gorini, G. ^[2]; Cazzaniga, C. ^[3]; Palma, M. Dalla; Pasqualotto, R.; Tollin, M. ^[4]; Grosso, G.; Muraro, A. ^[5]; Murtas, F.; Claps, G. ^[6]; Cavenago, M. ^[7]

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1. Istituto di Fisica del Plasma, Associazione EURATOM-ENEA-CNR, Milano, Italy and INFN, Sez. di Milano-Bicocca, Milano (Italy)
2. Dipartimento di Fisica, Università degli Studi di Milano-Bicocca, Milano, Italy and INFN, Sez. di Milano-Bicocca, Milano (Italy)
3. Dipartimento di Fisica, Università degli Studi di Milano-Bicocca, Milano (Italy)
4. Consorzio RFX - Associazione Euratom-Enea sulla Fusione, Padova (Italy)
5. Istituto di Fisica del Plasma, Associazione EURATOM-ENEA-CNR, Milano (Italy)
6. INFN, Laboratori Nazionali di Frascati, Frascati (Roma) (Italy)
7. INFN, Laboratori Nazionali di Legnaro, Legnaro (Padova) (Italy)

Fusion reactors will need high flux neutron detectors to diagnose the deuterium-deuterium and deuterium-tritium. 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 deuterium 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. After the realization and test of several small area prototypes, a full size prototype has been realized and tested with laboratory sources. Test on neutron beams are foreseen for the next months.

• OSTI ID: 22308290
• Journal Information: AIP Conference Proceedings, Vol. 1612, Issue 1; Conference: International conference on fusion reactor diagnostics, Varenna (Italy), 9-13 Sep 2013; Other Information: (c) 2014 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

07 ISOTOPES AND RADIATION SOURCES
DEUTERIUM
DEUTERONS
ELECTRON MULTIPLIER DETECTORS
ELECTRON MULTIPLIERS
NEUTRON BEAMS
NEUTRON EMISSION
NEUTRON FLUX
THERMONUCLEAR REACTORS
TRITIUM