کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1823337 1526422 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Crystal growth and characterization of calcium metaborate scintillators
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
پیش نمایش صفحه اول مقاله
Crystal growth and characterization of calcium metaborate scintillators
چکیده انگلیسی

Calcium metaborate CaB2O4 single crystals were grown by the Czochralski (CZ) method with the radio-frequency (RF) heating system. In these crystals, a plane cleavage was observed along the growth direction. The crystals had an 80% transparency, and no absorption bands were detected in the 190–900 nm wavelength range. The 241Am 5.5 MeV α-ray-excited radioluminescence spectrum of CaB2O4 demonstrated a broad intrinsic luminescence peak at 300–400 nm, which originated from the lattice defects or an exciton-based emission. According to the pulse height spectrum, when irradiated by neutrons from a 252Cf source, the scintillation light yielded approximately 3200 photons per neutron (ph/n).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 703, 1 March 2013, Pages 7–10
نویسندگان
, , , , , , , , , ,