CAJ | 학술논문

Geant4以其快速，方便，灵活的特点在核技术研究中得到了广泛的应用。本文通过利用Geant4，对基于X荧光涂层厚度测量方法，主要对激发源的优化设计、探测器放置的位置对探测效率的影响、涂层厚度测量的范围等问题进行了研究，得到：不同基底金属的特征X射线强度随涂层厚度变化的关系，本套实验系统中X荧光的空间几何分布和最佳的探测器放置位置，不同能量及不同入射方向的源射线对X荧光激发效率的影响。为进一步优化测量系统提供了理论依据。
Geant4이기쾌속，방편，령활적특점재핵기술연구중득도료엄범적응용。본문통과이용Geant4，대기우X형광도층후도측량방법，주요대격발원적우화설계、탐측기방치적위치대탐측효솔적영향、도층후도측량적범위등문제진행료연구，득도：불동기저금속적특정X사선강도수도층후도변화적관계，본투실험계통중X형광적공간궤하분포화최가적탐측기방치위치，불동능량급불동입사방향적원사선대X형광격발효솔적영향。위진일보우화측량계통제공료이론의거。
Geant4 is used widely in the research about nuclear technology since it is fast ,flexible and conven-ient.By use of Geant4,aim at the method of coating's thickness measuring based on X -ray fluorescence ,opti-mization design of excitation source , the position of the detector placed influence on detection efficiency , the range of coating thickness measuring etc problems are studied .Getting the relationship between characteristic X-ray's intensity of different base metal and thickness change ,the X fluorescence space geometric distribution and optimum detector is placed in this set of experimental system , different energy and incident direction of the source radiation effects on X fluorescence excitation efficiency .Provide a theoretical basis for further optimiza-tion of experimental system .