title: Neutron field parameter measurements on the JET tokamak by means of             super-heated fluid detectors.
abstract: The neutron field parameters (fluence and energy distribution) at a specific             location outside the JET Torus Hall have been measured by means of super-heated fluid             detectors (or "bubble detectors") in combination with an independent,             time-of-flight, technique. The bubble detector assemblies were placed at the end of a             vertical line of sight at about 16 m from the tokamak mid plane. Spatial distributions             of the neutron fluence along the radial and toroidal directions have been obtained using             two-dimensional arrays of bubble detectors. Using a set of three bubble detector             spectrometers the neutron energy distribution was determined over a broad energy range,             from about 10 keV to above 10 MeV, with an energy resolution of about 30% at 2.5             MeV. The very broad energy response allowed for the identification of energy features             far from the main fusion component (around 2.45 MeV for deuterium             discharges).
authors.affiliation: Association EURATOM-MEdC, National Institute for Laser, Plasma and Radiation Physics, Magurele, Romania. mihaela@infim.ro
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authors.lastname: Gherendi
authors.forename: V L
authors.initials: VL
authors.lastname: Zoita
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authors.lastname: Craciunescu
authors.forename: M Gatu
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authors.lastname: Johnson
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authors.lastname: Pantea
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authors.lastname: Baltog
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authors.lastname: Edlington
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authors.lastname: Hellesen
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authors.lastname: Kiptily
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authors.lastname: Conroy
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authors.lastname: Murari
authors.forename: S
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authors.lastname: Popovichev