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加速器
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  accelerator
    Asurvey of the development of medical accelerator in Russia
    俄罗斯医用加速器发展概况
短句来源
    THE ROUTINE MEASUREMENT OF RADIATION OUTPUT AND ENERGY WITH PHILIPS SL75-20MEDICAL ACCELERATOR HIGH-ENERGY X-RAY AND ELECTRON BEAN
    医用菲力普SL75一20加速器高能X线和电子线输出剂量与能量的监测
短句来源
    Spline inserting method in Accelerator's Depth Dose Measurement and Calculation
    加速器剂量测量和计算的样条插值法
短句来源
    The Establishment of Prescription Dose System for Radiotherapy on Accelerator's X ray
    加速器X射线放疗剂量计算系统的建立
短句来源
    Influence of the extended fringing field on the electron track in 270° bending system of the therapy standing wave linear accelerator
    医用加速器270°偏转系统中边缘场对电子轨迹的影响
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  lineal accelerator
    This article reported the long-term measured results of the main dosimetry parameters of Siemens KD-Ⅱlineal accelerator,and furthermore made a preliminary discusion for its dosimetry characteristics
    本文报告了对西门子KD—Ⅱ型加速器主要剂量学参数长期监测结果 ,并对其剂量特性作了初步探讨
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  “加速器”译为未确定词的双语例句
    Up and down position calibration for PRIMUS-ZXT table
    西门子PRIMUS加速器用ZXT治疗床升降校准
短句来源
    Testing for dose output linearity and automatic analysis & disposal the data of dose inspect of LINAC
    医用加速器剂量监测系统示值线性的检测与数据自动化分析处理
短句来源
    Results Among the 12 mechanical performance parameters, for domestic LINAC, 10 parameters' qualification rate are under 80%, in which 7 parameters' qualification rate are under 50%, and the lowest qualification rate is only 26%;
    结果12项机械性能参数中 ,国产加速器有10项参数合格率在80%以下 ,其中有7项参数合格率在50%以下 ,最低达26 %。
短句来源
    for first hand imported L1NAC, one parameters' qualification rate is 78%, and all the other are above 80%; the mechanical performance parameters of second hand imported L1NAC are similar to that of the domestic.
    而进口一手加速器除一项参数合格率为78% ,其它11项参数合格率均在80 %以上 ,进口二手机机械性能基本同国产加速器 ;
短句来源
    Using the formaula and the method the scattering effects were systematically investigated for the 6 MeV BJ-6 linac Produced by Beijing Medical Equipment Institute.
    我们用这个方法研究了北京医疗器械研究所生产的6MeV BJ-6加速器的机头散射情况并和实验测量结果进行了比较。
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  accelerator
The conceptual study on the accelerator driven system (ADS) that lasted for about five years ended in 1999 in China.
      
China's accelerator-driven sub-critical system (ADS) sub-critical experimental assembly-Venus-1 and the preliminary experiment is presented.
      
Radiocarbon dating of the pollen concentrate from late Pleistocene syngenetic ice wedges was carried out using accelerator mass spectrometry (AMS) in Seyakha and Bizon sections.
      
Sterilization of Mail by Means of an Electron Beam Accelerator
      
The structure of the front of an arc in a magnetohydrodynamic accelerator
      
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Abstract

俄罗斯医用加速器发展概况苏州医学院附属第二医院张叔鸣AsurveyofthedevelopmentofmedicalacceleratorinRussia¥ZhangShuming(No.2AffiliatedHospital,SuzhouMedic...

Intraoperative radiation is a valuble radiotherapy. The applicator for intraoperative treatment can be designed and made by yourself. The manufacture of the radiation applicator and the dosimetryin the application are discussed. The materials, size and shape of the applicator will effect on dosimetry results. The dosage should be measured very carefully before application, and suitable set of x-ray collimator should be chosen to obtain more satisfactory output characterization, so that depth of dose level can...

Intraoperative radiation is a valuble radiotherapy. The applicator for intraoperative treatment can be designed and made by yourself. The manufacture of the radiation applicator and the dosimetryin the application are discussed. The materials, size and shape of the applicator will effect on dosimetry results. The dosage should be measured very carefully before application, and suitable set of x-ray collimator should be chosen to obtain more satisfactory output characterization, so that depth of dose level can be increased by 80%, flatness of the field can be improved, surface dose can be reduced as much as possible, bremsstrahlung will become less and higher output factor of the beam. The distance between two neighboring fields should prevent hot and cool points of dose to appear. The angle of oblique incidence should not be too large during treatment.

术中照射是一项有价值的放疗技术。术中照射限光筒可以自行设计和制作。作者对术中照射限光筒制作和应用中的剂量学问题进行讨论和研究。限光筒的材料、尺寸和形状均可对剂量学结果产生影响,对每台加速器都应具体研究,术中照射限光筒制作后应仔细进行剂量测试。不同的X线光阑设置会有不同的剂量输出特性,要选择最佳的x线光阑开度以达到满意的剂量输出特性。即增加80%剂量深度,产生较小的韧致辐射效应并得到较高的输出剂量。在应用多野照射时相邻野之间的间隔要防止肿瘤部位出现剂量热点或冷点。斜入射的角度不易过大。

Beam tests (on table) of 14 MeV medical electron standing wave LINAC (linear accelerator) prototype have been fulfiled satisfactorily. The 270° bending magnet system is a key component of this machine which is designed by using TRANSPOR-EM/PC code and POISSON code. 270° bending magnet prototype combined with 14 MeV electron standing wave linear acceleration tube is under beam test. Experimental results show that electron beams in an energy range of 6 - 14 MeV and different initial emittances are exposed to achromatic...

Beam tests (on table) of 14 MeV medical electron standing wave LINAC (linear accelerator) prototype have been fulfiled satisfactorily. The 270° bending magnet system is a key component of this machine which is designed by using TRANSPOR-EM/PC code and POISSON code. 270° bending magnet prototype combined with 14 MeV electron standing wave linear acceleration tube is under beam test. Experimental results show that electron beams in an energy range of 6 - 14 MeV and different initial emittances are exposed to achromatic and focus action. When transported into target position beam current intensity is 3. 5 mA at 15. 1 MeV. Beam fleck diameter is about 2 mm. These above results demonstrate that performances of bending manget system satisfy radiotherapy condition requirements of 14 MeV medical LINAC.

270°偏转磁铁系统是 14 MeV医用电子驻波直线加速器上的关键部件。通过用 TRANSPORT—EM/PC程序和POISSON程序计算,完成了偏转磁铁样机设计方案。270°偏转 磁铁样机与加速管联合进行了出束试验,测试结果表明,具有 6~14 MeV能量范围、不同的初 始发射度的电子束流,通过270°偏转磁铁系统受到消色散和聚焦作用,传输到靶点在能量15.1 MeV时,束流强度为3.5mA,束流斑点直径约为2mm。上述结果证明270°偏转磁铁系统性能完 全满足 14 MeV医用直线加速器放射治疗条件要求。

 
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