Research activity with different types of scintillation materials

[摘要] Nowadays there is a growing interest and demand in the development of new types of scintillation materials for experimental high energy physics. Future detector developments will focus on cheap, fast, and radiation hard materials, especially for application in collider experiments. The most recent results obtained by the Giessen group in close cooperation with colleagues from different institutes will be presented. The new start of the mass production of high quality lead tungstate crystals (PbWO4, PWO) for electromagnetic calorimetry was started by the company CRYTUR (Turnov, Czech Republic). We will present a detailed progress report on the research program of lead tungstate performed in the last two years. The latest results in the development of LuAG:Ce, YAG:Ce and LYSO:Ce inorganic fibers, grown by the micro pulling down method and cut with the heated wire technique as well as new glass ceramics material BaO∗2SiO2(DSB) doped by Ce and Gd will be presented. In addition, different samples of the organic plastic scintillator EJ-260 produced by the company Eljen Technology (Sweetwater, USA) have been characterized. The study has focused on the change of performance after irradiation with 150 MeV protons up to an integral fluence of 5-1013protons/cm2as well as with a strong60Co gamma-source accumulating an integral dose of 100 Gy.

[发布机构] Justus-Liebig-Universität Giessen, II. Physikalisches Institut, Heinrich-Buff-Ring 16, Giessen; D 35392, Germany^1;Institute for Nuclear Problems, Bobruiskaya11, Minsk; 220030, Belarus^2;CRYTUR, Spol. S.r.o., Palackeho 175, Turnov; CZ-511 01, Czech Republic^3

[效力级别] 工业技术 [学科分类] 工业工程学

[关键词] Detector development;Electromagnetic calorimetry;Lead tungstate crystal;Micro-pulling-down method;Plastic scintillator;Research activities;Research programs;Scintillation materials