Publication Date:
2015-12-30
Description:
Publication date: Available online 29 December 2015 Source: Radiation Measurements Author(s): Yuui Yokota, Tmoki Ito, Shunsuke Kurosawa, Yuji Ohashi, Kei Kamada, Akira Yoshikawa Optical and scintillation properties of Sr 3 NbGa 3 Si 2 O 14 [SNGS] and Sr 3 TaGa 3 Si 2 O 14 [STGS] single crystals with the langasite-type crystal structure were investigated as a novel scintillator materials. In the transmittance spectra of the SNGS and STGS polished specimens, absorption peaks around 380 and 505 nm were observed and the absorptions are considered to be attributable to the excess oxygen in the crystals. An emission peak around 420 nm was observed in the X-ray radioluminescence spectrum of the SNGS crystal. On the other hand, there was an emission peak around 335 nm in the X-ray radioluminescence spectrum of the STGS crystal.
Print ISSN:
1350-4487
Electronic ISSN:
1879-0925
Topics:
Electrical Engineering, Measurement and Control Technology
,
Physics
