Coordinated underground measurements of gamma-ray emitting radionuclides for plasma physics research. (August 2017)

• Record Type: Journal Article
• Authors: Tzika, Faidra; Hult, Mikael; Fenyvesi, András; Bandac, Iulian; Degering, Detlev; Ianni, Aldo; Laubenstein, Matthias; de Vismes-Ott, Anne; Marissens, Gerd; Stroh, Heiko; Lutter, Guillaume; Son, Soohyun; Hong, Suk-Ho; Kim, Jun Young; Kim, Junghee; Cheon, Mun Seung; Jo, Jungmin; Braun, Mihály; Németh, József; Zoletnik, Sándor; Bonheure, Georges
• Is Part Of: Applied radiation and isotopes. Volume 126(2017:Aug.)
• Page Start: 121
• Page End: 126
• Publication Date: 2017-08
• Subjects: EUFRAT -- Underground laboratory -- Gamma ray spectrometry -- Charged particle activation -- Neutron activation -- Fusion plasma; Radiology -- Periodicals; Radiation -- Industrial applications -- Periodicals; Nuclear chemistry -- Periodicals; Internet resource; Periodical; 660.298
• DOI: 10.1016/j.apradiso.2016.12.038
• Languages: English
• ISSNs: 0969-8043

Abstract

Abstract: Forty-eight samples made of CaF2, LiF and YVO4 were placed inside the KSTAR Tokamak and irradiated by neutrons and charged particles from eight plasma pulses. The aim was to provide information for plasma diagnostics. Due to the short pulse durations, the activities induced in the samples were low and therefore measurements were performed in five low-background underground laboratories. Details of the underground measurements, together with data on the quality control amongst the radiometric laboratories, are presented. Highlights: First activation probe experiment was conducted at KSTAR Tokamak. The activated samples were measured with low level gamma-ray spectrometry. Five CELLAR underground laboratories participated in the measurement campaign. The metrological aspects and the comparability of the measurements are discussed. The final aim is to determine the neutrons and charged particles fluxes at KSTAR.