Neutron field parameter measurements on the JET tokamak by means of super-heated fluid detectors
2012 (English)In: Review of Scientific Instruments, ISSN 0034-6748, E-ISSN 1089-7623, Vol. 83, no 10, 10E124- p.Article in journal, Meeting abstract (Refereed) Published
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).
Place, publisher, year, edition, pages
2012. Vol. 83, no 10, 10E124- p.
IdentifiersURN: urn:nbn:se:uu:diva-186839DOI: 10.1063/1.4739410ISI: 000311562900132OAI: oai:DiVA.org:uu-186839DiVA: diva2:574832
19th Topical Conference High-Temperature Plasma Diagnostics, May 6-10, 2012, Monterey, CA, USA