文献类型：会议论文

英文题名：Optical characterization under irradiation of Ce³⁺ (Tb³⁺)-doped phosphate scintillating glasses

作者：Baccaro, S; Cecilia, A; Chen, G; Mihokova, E; Nikl, M

机构：[1]ENEA, TEC, IRR, I-00060 Rome, Italy;[2]E China Univ Sci & Technol, Dept Inorgan Mat, Shanghai 200237, Peoples R China;[3]Acad Sci Czech Republ, Inst Phys, Prague 16253, Czech Republic

会议论文集：Annual Nuclear Science Symposium (NSS)

会议日期：OCT 15-20, 2000

会议地点：LYON, FRANCE

语种：英文

外文关键词：glass; radiation effects; scintillation detectors

摘要：Radiation hardness is one of the fundamental parameters characterizing a scintillator. The reason is that ionizing radiation often induces the formation of color centers in the irradiated material. These centers are related to lattice defects and may absorb light in the visible range. Possible overlap of the induced absorption spectrum with the emission spectrum of the scintillator can reduce the number of photons emitted by the scintillator, influencing negatively the energy resolution of the detector. In this paper, the irradiation (Co-60) induced absorption of Ce3+ (Tb3+) phosphate scintillating glasses is reported in the dose range 1 circle divide 10 Gy. Irradiation tests were performed in the "Calliope" irradiation plant, placed in the Research Centre ENEA-Casaccia in the same dosimetric point (3.7 Gy/h), and the irradiation-induced damage was investigated by transmission measurements. Results are discussed by taking into account the possible dependence of radiation hardness on the composition of glass matrix.