Property measurement of the CsI（Tl） crystal prepared at IMP

Large-sized CsI（Tl） single crystals, -φ 0100 mm×350 mm, have been grown successfully, and this CsI（Tl） coupled with PD has been successfully utilized at RIBLL （the Radioactive Ion Beam Line in Lanzhou） to measure the energy of heavy ions as a stopping detector. The performances of CsI（Tl） detector coupled with PD and APD have been tested and compared, including the temperature dependence of scintillating light yield.