亲爱的研友该休息了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!身体可是革命的本钱,早点休息,好梦!

Comparing the output of measured and GEANT4 simulated X-ray tubes

X射线 材料科学 物理 核医学 光学 医学
作者
M B Kirkpatrick,Sean Hood,Susanna Guatelli,Y. Van Haarlem
出处
期刊:Radiation Physics and Chemistry [Elsevier BV]
卷期号:220: 111647-111647
标识
DOI:10.1016/j.radphyschem.2024.111647
摘要

Monte Carlo simulation codes that model particle interactions with matter, including GEANT4, can be used to support the development of novel X-ray tubes and instruments for applications in industry and research. Based on our knowledge, simulations of the output of transmission-geometry X-ray tubes have not yet been conducted in GEANT4. Simulations of reflection-geometry tubes are scarce, with a limited number of studies investigating the capability and accuracy of GEANT4 in this domain. Therefore, the aim of this work is to benchmark GEANT4 for the characterisation of X-ray tubes with industry applications, using for the first time a range of X-ray tubes geometries and high voltages. In this work, GEANT4 is benchmarked against experimental measurements performed at the Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia, with both transmission and reflection X-ray tubes. High voltages between 17 kV and 42.5 kV for tungsten, molybdenum, gold, and silver targets are investigated. The measurements have been performed with a MXR packaged X-ray tube (reflection) and Magnum X-ray tubes (transmission) and a fast silicon drift detector (SDD). Our study shows that GEANT4 predicts the bremsstrahlung continuum output of transmission and reflection X-ray tubes, in agreement with the experimental measurements. The Penelope physics models, distributed with GEANT4, and the GEANT4 X-ray fluorescence data libraries ANSTO HF, based on the Hartree-Fock approach, exhibit the best agreement against experimental measurements. Depending on the high voltage, target and X-ray line agreement was found to vary between 10% and 300%. Differences between GEANT4 and experimental data are more significant for lower voltage X-ray tube measurements and are most likely due to limitations in the ionization electron cross-section and/or atomic relaxation data libraries used. As next steps, it is recommended to validate GEANT4 against other, independent experimental measurements to corroborate the results of this work. In addition, it would be useful to repeat the same study with other general purpose Monte Carlo codes for radiation physics to compare their capability against GEANT4 in this application domain.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
13秒前
自由飞阳完成签到,获得积分10
16秒前
小羡完成签到 ,获得积分10
23秒前
滕皓轩完成签到 ,获得积分20
31秒前
aDou完成签到 ,获得积分10
36秒前
George完成签到,获得积分10
37秒前
oscar发布了新的文献求助10
42秒前
oscar完成签到,获得积分10
51秒前
1分钟前
1分钟前
1分钟前
2分钟前
疯狂的自行车完成签到,获得积分20
2分钟前
Akim应助科研通管家采纳,获得10
3分钟前
我睡觉不会困12138完成签到 ,获得积分10
3分钟前
脑洞疼应助xiongdi521采纳,获得10
3分钟前
阿泽完成签到 ,获得积分10
3分钟前
疯狂的自行车关注了科研通微信公众号
3分钟前
kohu完成签到,获得积分10
3分钟前
4分钟前
kohu发布了新的文献求助10
4分钟前
4分钟前
正直的松鼠完成签到 ,获得积分10
4分钟前
核桃发布了新的文献求助10
5分钟前
Xw关闭了Xw文献求助
5分钟前
5分钟前
Xw关闭了Xw文献求助
6分钟前
6分钟前
Swear完成签到 ,获得积分10
6分钟前
勤恳冰淇淋完成签到 ,获得积分10
6分钟前
6分钟前
El发布了新的文献求助10
6分钟前
6分钟前
李健应助El采纳,获得10
6分钟前
义气雁完成签到 ,获得积分10
7分钟前
7分钟前
xiongdi521发布了新的文献求助10
7分钟前
美罗培南完成签到 ,获得积分10
7分钟前
lige完成签到 ,获得积分10
7分钟前
7分钟前
高分求助中
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3990075
求助须知:如何正确求助?哪些是违规求助? 3532108
关于积分的说明 11256369
捐赠科研通 3271016
什么是DOI,文献DOI怎么找? 1805171
邀请新用户注册赠送积分活动 882270
科研通“疑难数据库(出版商)”最低求助积分说明 809228