Non-diverging analytic expression for the on-axis sensitivity of converging collimators: analytic derivation.
Non-diverging analytic expression for the on-axis sensitivity of converging collimators: analytic derivation.
复制标题
会聚准直器轴上灵敏度的非发散解析表达式：解析推导。
DOI：
10.1088/0031-9155/51/21/019
复制
发表时间：
2006
影响因子：
3.5
通讯作者：
Metzler,SD
中科院分区：
文献类型：
--
作者：
Accorsi,R;Metzler,SD
The expressions for the sensitivity of converging collimators found in the literature diverge at points near the focal locus of the collimator. In this paper, an analytical formula that does not diverge is derived and compared to that available in the literature. An analysis is provided to predict the cases in which use of the new formula is advisable. Since the first expression derived is rather complex, approximations were made to reach simpler formulae. The formulae derived can be used to define and extend the realm of applicability of the literature expression in the cases identified in their derivation.
