本文選題：蒙特卡羅方法 + Geant　； 參考：《強(qiáng)激光與粒子束》2017年12期

【摘要】：在輻射成像系統(tǒng)的設(shè)計研發(fā)中,經(jīng)常需要計算系統(tǒng)的各項(xiàng)物理性能指標(biāo)。為了提升產(chǎn)品研發(fā)的效率,同方威視聯(lián)合清華大學(xué),基于蒙特卡羅程序包Geant4,研發(fā)了國內(nèi)首套具有自主知識產(chǎn)權(quán)的輻射成像系統(tǒng)模擬軟件NucRPD(NUCTECH Radiography Performance Design Tools),其能夠快速、精確地模擬系統(tǒng)的各項(xiàng)性能指標(biāo)。該軟件對常用的一些輻射成像系統(tǒng)進(jìn)行了參數(shù)化建模,用戶通過修改軟件界面上的少量參數(shù),就可以快速建立各類輻射成像系統(tǒng)的幾何體、源項(xiàng)、物理模型和統(tǒng)計量,然后在服務(wù)器上以并行計算方式完成模擬計算,能在較短的時間內(nèi)模擬出系統(tǒng)的性能指標(biāo),并給出直觀的圖形幫助用戶深入理解模擬結(jié)果。NucRPD的模擬結(jié)果經(jīng)過了大量的實(shí)驗(yàn)驗(yàn)證,其劑量場分布和物理指標(biāo)等模擬結(jié)果和實(shí)驗(yàn)結(jié)果符合得很好。NucRPD已經(jīng)應(yīng)用于同方威視輻射成像系統(tǒng)產(chǎn)品的設(shè)計研發(fā),在產(chǎn)品的物理指標(biāo)優(yōu)化和輻射防護(hù)優(yōu)化中發(fā)揮了重要作用。
[Abstract]:In the design and development of radiation imaging system, we often need to calculate the physical performance indexes of the system. In order to improve the efficiency of product research and development, the same Fang Wei, Tsinghua University, based on the Monte Carlo program package Geant4, developed the first set of NucRPD (NUCTECH Radiography Per) software (NUCTECH Radiography Per) with independent intellectual property rights. Formance Design Tools), which can quickly and accurately simulate the performance indicators of the system. The software is parameterized for some commonly used radiography systems. By modifying a small number of parameters on the software interface, the user can quickly establish the geometry, source, physical model and statistics of various radiography systems. The simulation calculation can be completed by parallel computing on the server. It can simulate the performance index of the system in a short time, and give the intuitive graphics to help the users understand the simulation results.NucRPD. The simulation results of the simulation results have been verified by a large number of experiments. The simulation results of the dose field distribution and physical and physical indexes are in good agreement with the experimental results. Good.NucRPD has been applied to the design and development of the products of the same square vision radiation imaging system. It plays an important role in optimizing the physical index of the product and optimizing the radiation protection.
【作者單位】： 同方威視技術(shù)股份有限公司;清華大學(xué)工程物理系;
【分類號】：O434.19;TP391.41
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本文編號：2115700