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

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.
Authors:
;  [1] ; ; ;  [2] ;  [3] ; ; ;  [4] ; ;  [5] ; ;  [6] ;  [7]
  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)
Publication Date:
OSTI Identifier:
22308290
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1612; Journal 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)
Country of Publication:
United States
Language:
English
Subject:
07 ISOTOPES AND RADIATION SOURCES; DEUTERIUM; DEUTERONS; ELECTRON MULTIPLIER DETECTORS; ELECTRON MULTIPLIERS; NEUTRON BEAMS; NEUTRON EMISSION; NEUTRON FLUX; THERMONUCLEAR REACTORS; TRITIUM