Development of scintillator plates with high energy resolution for alpha particles made of GPS scintillator grains
Development of scintillator plates with high energy resolution for alpha particles made of GPS scintillator grains
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开发由 GPS 闪烁体颗粒制成的 α 粒子高能量分辨率闪烁体板
DOI：
10.1016/j.nima.2013.09.030
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发表时间：
2014
影响因子：
1.4
通讯作者：
S. Nishiyama
中科院分区：
文献类型：
--
作者：
T. Shimaoka;J. Kaneko;Kenji Izaki;Youichi Tsubota;M. Higuchi;S. Nishiyama
开发了一种具有高能量分辨率的闪烁体板，以生产用于核燃料后处理厂和钚铀氧化物混合燃料厂的α粒子监测器。Gd_2Si_2O_7（GPS）闪烁体的几个10到550 μm的颗粒被固定在玻璃衬底上，然后被机械抛光。通过增加闪烁体颗粒的尺寸和去除细粉，收集的光产额和能量分辨率的α粒子显着提高。平均晶粒尺寸为91 μm时，能量分辨率达到9.3%。此外，通过进一步增大晶粒尺寸和采用双面机械抛光表面，峰值计数与总计数之比提高了60%以上。β和γ射线的影响被薄的100 μm闪烁体板充分抑制。
A scintillator plate with high energy resolution was developed to produce an alpha particle monitor used in nuclear fuel reprocessing plants and mixed plutonium-uranium oxide (MOX) fuel plants. Grains of a Gd2Si2O7(GPS) scintillator of several 10 to 550 μm were fixed on a glass substrate and were then mechanically polished. By increasing the size of scintillator grains and removing fine powders, the collected light yield and energy resolution for alpha particles were drastically improved. Energy resolution of 9.3% was achieved using average grain size of 91 μm. Furthermore, the ratios between counts in a peak and total counts were improved by more than 60% by the further increase of grain size and adoption of mechanically polished surfaces on both sides. Beta and gamma ray influences were suppressed sufficiently by the thin 100 μm scintillator plates.
影响因子：
5.2
作者：
Fukabori, Akihiro;An, Liqiong;Goto, Takashi
通讯作者：
Goto, Takashi