The light yield nonproportionality component of scintillator energy resolution
The light yield nonproportionality component of scintillator energy resolution
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DOI：
10.1109/23.682438
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发表时间：
1998-06-01
影响因子：
1.8
通讯作者：
Li, J
中科院分区：
文献类型：
--
作者：
Valentine, JD;Rooney, BD;Li, J
在NaI（Tl）和LSO中表征了由光产率非比例性引起的闪烁体能量分辨分量。结果是基于测量电子响应数据的离散卷积和由全能量吸收事件产生的电子能量分布。这种能量分辨成分的行为作为能量的函数被观察到强烈依赖于电子响应的形状。此外，在某些能量区域，观察到光产率非比例分量大于假设泊松光电子统计预测的分辨率。该能量分辨率分量的表征将有助于从总能量分辨率中反卷积其他分量。
The scintillator energy resolution component which is due to light yield nonproportionality has been characterized for NaI(Tl) and LSO. Results are based on a discrete convolution of measured electron response data and the electron energy distribution resulting from full-energy absorption events. The behavior of this energy resolution component as a function of energy is observed to be strongly dependent an the shape of the electron response. Furthermore, in some energy regions, the light yield nonproportionality component is observed to be larger than the resolution predicted by assuming Poisson photoelectron statistics. Characterization of this energy resolution component will facilitate deconvolution of other components from the total energy resolution.