有色冶金设计与研究
有色冶金設計與研究
유색야금설계여연구
NONFERROUS METALS ENGINEERING & RESEARCH
2014年
3期
50-54
,共5页
散射系数%光子%EGS%MCNP%混凝土
散射繫數%光子%EGS%MCNP%混凝土
산사계수%광자%EGS%MCNP%혼응토
scattering coefficient%photon%EGS%MCNP%concrete
采用EGS5光子-电子蒙特卡罗程序计算了多种能量的光子以多种入射角照射到混凝土上时在各个方向角上所产生的散射系数,分析了模型的形状及材料厚度对散射系数的影响,EGS5模拟所得的散射系数与MCNP程序计算结果符合度较好,相对偏差基本均在5.0%以内。
採用EGS5光子-電子矇特卡囉程序計算瞭多種能量的光子以多種入射角照射到混凝土上時在各箇方嚮角上所產生的散射繫數,分析瞭模型的形狀及材料厚度對散射繫數的影響,EGS5模擬所得的散射繫數與MCNP程序計算結果符閤度較好,相對偏差基本均在5.0%以內。
채용EGS5광자-전자몽특잡라정서계산료다충능량적광자이다충입사각조사도혼응토상시재각개방향각상소산생적산사계수,분석료모형적형상급재료후도대산사계수적영향,EGS5모의소득적산사계수여MCNP정서계산결과부합도교호,상대편차기본균재5.0%이내。
This paper makes a calculation on the scattering coefficient of photon with multi-energy shining on the concrete from each direction angle adopting EGSS photon-electron Monte Carlo method, and has an analysis on the effect of the model shape and material thickness on the scattering coefficient. The scattering coefficient obtained by EGSS simulation has a better conformity with the result calculated by MCNP procedure, and the relative deviation is basically within 5.0%.
