Gamma ray spectroscopy at high energy and time resolution at JET (Articolo in rivista)

Type
Label
  • Gamma ray spectroscopy at high energy and time resolution at JET (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.2964205 (literal)
Alternative label
  • M. Tardocchi,1,? L. I. Proverbio,1 G. Gorini,1 G. Grosso,1 M. Locatelli,1 I. N. Chugonov,2 D. B. Gin,2 A. E. Shevelev,2 A. Murari,3 V. G. Kiptily,3 B. Syme,3 A. M. Fernandes,4 R. C. Pereira,4 J. Sousa,4 and JET-EFDA Contributors5,c?,d? (2008)
    Gamma ray spectroscopy at high energy and time resolution at JET
    in Review of scientific instruments
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • M. Tardocchi,1,? L. I. Proverbio,1 G. Gorini,1 G. Grosso,1 M. Locatelli,1 I. N. Chugonov,2 D. B. Gin,2 A. E. Shevelev,2 A. Murari,3 V. G. Kiptily,3 B. Syme,3 A. M. Fernandes,4 R. C. Pereira,4 J. Sousa,4 and JET-EFDA Contributors5,c?,d? (literal)
Pagina inizio
  • 10E524-1 (literal)
Pagina fine
  • 10E524-4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://rsi.aip.org/resource/1/RSINAK/v79/i10 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 79 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 10 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1Università degli Studi di Milano-Bicocca e Istituto di Fisica del Plasma, EURATOM-ENEA-CNR Association, I-20125 Milan, Italy 2A. F. Ioffe Physico-Technical Institute, St. Petersburg 194021, Russian Federation 3EURATOM-UKAEA Association, Culham Science Centre, OX14 3DB Abingdon, United Kingdom 4Associação EURATOM/IST Centro de Fusão Nuclear, Instituto Superior Técnico, 1049-001 Lisboa, Portugal 5JET-EFDA, Culham Science Centre, OX14 3DB Abingdon, United Kingdom (literal)
Titolo
  • Gamma ray spectroscopy at high energy and time resolution at JET (literal)
Abstract
  • In fusion plasmas gamma ray emission is caused by reactions of fast particles, such as fusion alpha particles, with impurities. Gamma ray spectroscopy at JET has provided valuable diagnostic information on fast fuel as well as fusion product ions. Improvements of these measurements are needed to fully exploit the flux increase provided by future high power experiments at JET and ITER. Limiting aspects are, for instance, the count rate capability due to a high neutron/gamma background combined with slow detector response and a modest energy resolution due to the low light yield of the scintillators. This paper describes the solutions developed for achieving higher energy resolution, signal to background, and time resolution. The detector design is described based on the new BrLa3 scintillator crystal. The paper will focus on hardware development, including a photomultiplier tube capable of stable operation at counting rate as high as 1 MHz, the magnetic shielding, and the fast digital data acquisition system. (literal)
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