Definition of the radiation fields for the JET gamma-ray spectrometer diagnostics
| 作者： | Vasile Zoita, Sorin Soare, Teddy Craciunescu, Marian Curuia, Vasily Kiptily, Nick Balshaw, Patrick Blanchard, David Croft, Andrea Murari, Brian Syme |
| 作者单位： |
1EFDA-JET CSU Culham, Culham Science Centre, Abingdon, UK 2Association EURATOM-MEdC, National Institute for Laser, Plasma and Radiation Physics, Bucharest, Romania 3Association EURATOM-MEdC, National Institute for Cryogenics and Isotope Technologies, Rm. Valcea, Romania 4Association EURATOM-CCFE, Culham Science Centre, Abingdon, UK 5Association EURATOM-CRPP-EPFL, Lausanne, Switzerland 6Association EURATOM-ENEA, RFX, Padova, Italy |
| 刊名： | Fusion Engineering and Design, 2013, Vol.88 (6-8), pp.1366-1370 |
| 来源数据库： | Elsevier Journal |
| DOI： | 10.1016/j.fusengdes.2013.01.083 |
| 关键词： | Tokamak; Diagnostics; Gamma-rays; Neutrons; Gamma-ray spectrometers; |
| 原始语种摘要： | Abstract(#br)The JET gamma-ray diagnostics system provides information on the behaviour of fast particles within the tokamak plasma. Information on the spatial distribution of the interacting fast particles is obtained from the gamma-ray cameras, while energy distribution information is provided by gamma-ray spectrometers. These techniques have been successfully applied so far in fast particle simulation experiments at JET. The extension of these diagnostics to high performance discharges with high neutron yields is not straightforward due to the background gamma-ray emission induced by neutrons. Two gamma-ray diagnostics upgrade projects at JET addressed this issue by developing neutron/gamma radiation filters (“neutron attenuators”) and collimators for a proper definition of the... |
