MANTIS: combined x-ray, electron and optical Monte Carlo simulations of indirect radiation imaging systems
MANTIS: combined x-ray, electron and optical Monte Carlo simulations of indirect radiation imaging systems
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DOI：
10.1088/0031-9155/51/6/013
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发表时间：
2006-03-21
影响因子：
3.5
通讯作者：
Sempau, J
中科院分区：
文献类型：
--
作者：
Badano, A;Sempau, J
我们描述了MANTIS（蒙特卡罗X射线电子光学成像模拟），一个用于模拟成像系统的工具，它可以跟踪任意材料和复杂几何形状中的X射线，电子和光子。X射线和电子输运以及相关的物理模型来自PENDIX PE软件包，光学输运和相应的物理模型来自DETECT-II，包括材料边界处的菲涅耳折射和反射、体吸收和散射。复杂的几何图形可以通过PENDENT PE中包含的几何图形程序来处理。当X射线或电子相互作用并在闪烁体中存款能量时，代码根据用户选择的转换过程模型生成多个光学量子。然后跟踪可见光子，直到它们到达吸收事件，这在某些情况下有助于输出信号，或者从几何结构逃逸。我们证明了这种新工具的能力，相对于检测到的光信号的统计数据和对应于柱状荧光屏的三维点响应函数。
We describe MANTIS (Monte carlo x-rAy electroN opTical Imaging Simulation), a tool for simulating imaging systems that tracks x-rays, electrons and optical photons in arbitrary materials and complex geometries. The x-ray and electron transport and involved physics models are from the PENELOPE package, and the optical transport and corresponding physics models are from DETECT-II and include Fresnel refraction and reflection at material boundaries, bulk absorption and scattering. Complex geometries can be handled with the aid of the geometry routines included in PENELOPE. When x-rays or electrons interact and deposit energy in the scintillator, the code generates a number of optical quanta according to a user-selected model for the conversion process. The optical photons are then tracked until they reach an absorption event, which in some cases contributes to the output signal, or escape from the geometry. We demonstrate the capabilities of this new tool with respect to the statistics of the optical signal detected and to the three-dimensional point-response functions corresponding to columnar phosphor screens.