1) collimator's splay angle effect
准直器张角效应
2) splayed angle effect
张角效应
1.
Methods: By using a perfect parallel-hole collimator model and a collimator model considering the splayed angle effect,this paper proposed a novel method which considers the space response function(SRF) calculating the system matrix and uses an improved Ray Tracing algorithm to perform attenuation correction.
方法:采用理想平行孔和张角效应平行孔准直器两种模型,将准直器的空间响应融入系统传输矩阵,利用改进的射线跟踪算法进行衰减校正。
3) Collimator-detector response (CDR)
准直器-探头效应
4) self-collimation effect
自准直效应
1.
The self-collimation effect of TM mode in a two-dimensional square lattice photonic crystal is studied by using plane-wave expansion method, and two-dimensional finite-difference time-domain method with perfectly matched layer absorbing boundary conditions for the application of beam adjustment and deflection.
通过分析光子晶体的能带结构和等频图,基于二维光子晶体的自准直效应和光子带隙,对光波在二维光子晶体中的传播特性进行了讨论。
5) Angle collimator
角度准直器
补充资料：准直
准直
影像学术语。利用准直器的定向作用，使只限于某一空间单元的放射线进入辐射探测器的功能。CT设备的准直可保证X线束平行地穿过欲查层面，是层面成像的基础。核医学检查中，则根据被测γ射线的能量不同，可以分别选择低能、中能和高能准直器，屏蔽不同能级的γ射线。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条