1) multi-pinhole collimator
多针孔准直器
1.
The efficiency of single-pinhole and multi-pinhole collimator is compared based on a imaging geometric model.
在成像几何模型的基础上,通过分析和计算,研究了多针孔准直器与单针孔准直器对探测效率的影响。
2) pinhole collimator
针孔准直器
1.
Monte Carlo simulations of a MicroSPECT pinhole collimator;
基于Monte Carlo模拟设计MicroSPECT针孔准直器
2.
In order to minimize the penetration and scattering effect of gamma ray on the pinhole collimator,Monte-Carlo simulation was utilized to optimize the designs of pinhole collimator for a single photon emission computed tomography(SPECT) system.
为了最大限度地减少γ射线在针孔准直器上的透射和散射效应,采用蒙特卡罗方法对单光子发射计算机断层(SPECT)成像系统使用的针孔准直器进行优化。
3) coded-pinhole collimator
编码针孔准直器
1.
The coded-pinhole collimator and CdZnTe mosaic detector are employed to procure higher energy resolution, spatial resolution and detection efficiency.
为了得到高的能量分辨率、空间分辨率和探测效率,采用了编码针孔准直器和拼嵌式CdZnTe半导体探测器。
4) Multileaf collimator
多叶准直器
1.
The Maintenance and Repair of Multileaf Collimator;
医用电子直线加速器多叶准直器的维护与故障检修
2.
OBJECTIVE: To study the efficacy of using differential multileaf collimators in the treatment of nasopharyngeal carcinoma (NPC) by intensity-modulated radiotherapy techniques( IMRT).
目的:探讨不同多叶准直器(multileaf collimator,MLC)叶片宽度对调强放疗(intensity modulated radiotherapy,IMRT)治疗计划的影响。
5) multi-leaf collimator
多叶准直器
1.
Objective: To establish method and contents on testing the Varian multi-leaf collimator(MLC).
目的:通过建立一套多叶准直器(MLC)常规测量方法,探讨用MLC进行三维适形放射治疗(3-Dimension confor-mal radiation therapy,3D CRT)质量保证(QA)的内容。
2.
To evaluate the application of GAFCHROMIC EBT film in calibrating multi-leaf collimator.
研究一种辐射自显影胶片(GAFCH-ROMIC EBT胶片)用于医用电子直线加速器多叶准直器(MLC)校准的方案设计、实施、数据处理及性能评估。
6) parallel-hole collimator
平行孔准直器
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.
目的:改进平行孔准直器SPECT系统的成像方法,快速、精确地实现有序子集期望值最大化(OSEM)重建算法。
补充资料：索勒准直器
分子式：
CAS号：
性质：X射线谱仪中将射线束准直用的部件。由若干平行金属片组成。它可将X射线管发射的射线束截取成近似平行的射线束，投射到分析晶体或探测器窗口上。
CAS号：
性质：X射线谱仪中将射线束准直用的部件。由若干平行金属片组成。它可将X射线管发射的射线束截取成近似平行的射线束，投射到分析晶体或探测器窗口上。
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