Thumbnail
Access Restriction
Open

Author Martínez, M. ♦ Zurro, B. ♦ Baciero, A. ♦ Jiménez-Rey, D. ♦ Malo, M. ♦ Tribaldos, V. ♦ Crespo, M. T. ♦ Muñoz, D.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY ♦ CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ ALUMINIUM ♦ CERIUM ♦ COMPARATIVE EVALUATIONS ♦ COMPUTER CODES ♦ DATA ACQUISITION ♦ DOPED MATERIALS ♦ KEV RANGE 10-100 ♦ LUMINESCENCE ♦ PEROVSKITE ♦ PROBES ♦ SCINTILLATIONS ♦ SCREENS ♦ SENSITIVITY ♦ TIME RESOLUTION ♦ YTTRIUM
Abstract A systematic study of scintillation materials was undertaken to improve the time resolution of the fast ion diagnostic currently installed at TJ-II stellarator. It was found that YAP:Ce (formula YAlO{sub 3}:Ce, Yttrium Aluminum Perovskite doped with Cerium) ionoluminescence offers better sensitivity and time response compared to the standard detector material, SrGa{sub 2}S{sub 4}:Eu (TG-Green), currently used in TJ-II. A comparison between both materials was carried out by irradiating them with H{sup +} ions of up to 40 keV using a dedicated laboratory setup. It is found that for the low energy ions of interest at TJ-II, YAP:Ce offers 20 times higher sensitivity than TG-Green and much faster decay time, 27 ns versus 540 ns. It is expected that the use of YAP:Ce in combination with a faster data acquisition and an ion counting software as part of the TJ-II ion luminescent probe will provide 20 times faster data on ion loss.
ISSN 00346748
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-11-15
Publisher Place United States
Journal Review of Scientific Instruments
Volume Number 87
Issue Number 11


Open content in new tab

   Open content in new tab