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MicroShield是一款辐射剂量计算软件,它广泛应用于屏蔽体设计与屏蔽外参考点剂量率计算等方面。 该软件有16种源项模型并自带一个含12种屏蔽材料的材料库以及一个含大量放射性核素的核素库,用户还可以根据工程需要自行添加屏蔽材料,这些功能使用户在建模时有更广泛的选择范围。
MicroShield除了重视建模、核素参量输入等功能外,其结果是以Microsoft Office方式输出,方便用户对计算结果进行后续应用。
MicroShield是完全互动的,并利用丰富的输入错误检查。集成工具提供结果,材料和源文件创建的图形,具有衰减的源推断(考虑衰变和子堆积的剂量——Ci计算),衰减导致的暴露率与实践的预测,材料和核素数据的访问行业衰变热计算。
MicroShield现在有两个不同的版本:MicroShieldPro和MicroShieldLT。MicroShieldPro提供MicroShield软件的全部功能以及各种源,衰变和其他剂量评估工具。MicroShieldLT提供了基本的三维解决方案算法和基本功能。
MicroShield功能比较:
特征 | MicroShieldLT | MicroShieldPro |
完全兼容Microsoft Windows10 | √ | √ |
支持国际数字格式 | √ | √ |
3D MicroShield 解决方案引擎 | √ | √ |
16种不同的几何形状 | √ | √ |
以国际单位和英制单位输入 | √ | √ |
具有多达30种成分的定制材料 | √ | √ |
包括基于NIST,ANSI/ANS-6.4.2-2006等的60多种定制材料 | √ | √ |
ICRP 38& 107核素来源 | √ | √ |
生成子产品的源项衰变 | √ | √ |
基于ICRP、51、71&116 DCF的多次剂量结果 | √ | √ |
批处理工具 | √ | √ |
结果导出到MicrosoftWord和Excel | √ | √ |
灵敏度工具 | √ | √ |
特定几何形状的多层堆积系数 | √ | |
特定几何的累积因子敏感性 | √ | |
外部来源工具 | √ | |
源推理工具 | √ | |
曝光率工具 | √ | |
衰减热工具 | √ | |
材料与核数据查看器 | √ | |
可用的站点许可证 | √ | |
静默安装和SCCM支持 | √ |
MicroShield通用功能包括
16个几何形状,适应偏移剂量点和多达10个标准屏蔽加上源自屏蔽和圆柱包层
输入尺寸时,将重新调整输入的几何显示。尺寸数据以米,厘米,英尺或英寸为单位
更新的数据(放射性核素,衰减,累积和剂量转换)反映了ICRP 38和107以及ANSI / ANS标准和RSICC出版物的标准数据
剂量转换因子包括ICRP出版物116吸收剂量率和来自ANSI / ANS -6.1.1-1977的剂量转换因子
包括基于NIST,ANSI / ANS-6.4.2-2006等各种定制材料
自动和同时计算积累和未积分的结果
可以为任何情况设计和保存多达巴中自定义材料,已添加到十二种内置材料中
可以创建和保存源并在案例之间移动源,可以是核素或能量,也可以是浓度或总数。提供了几种光子分组方法,包括自定义(用户定义)。
可以使用生成的子产品计算源衰减
可以使用多达25个能量组(能量范围为15keV至10MeV);输入可以是集中或总计
可以研究曝光速率对时间,光源尺寸,屏蔽厚度或距离的灵敏度。可以对正交顺序敏感地进行积分转换验证
可以计算衰变热/能量
能够使用国际数字格式(十进制逗号等)
几何源配置包括
点
线
磁盘
矩形区域 - 垂直
矩形区域 - 水平
球
气缸容积 - 侧挡板
气缸表面 - 端罩
气缸表面 - 内部剂量点
气缸表面 - 外部剂量点
环形气缸 - 内部剂量点
环形气缸 - 外部剂量点
矩形体积
截断锥
无限平面
无限平板
MicroShield V13新特性:
MicroShield V13包括
改进的计算算法包括添加更新的National Institute of Standards and Technology (NIST) 质量衰减因子 [Hubbell, JH 和 Seltzer, SM (2004)]
扩大自定义材料库以包括30多种新的自定义材料,使库中的材料达到100多种
添加了为每个剂量点设置固定气隙的功能
包含来自ICRP-21以及ANSI/ANS 6.1.1-1991和2020的剂量转换因子
与Microsoft Windows 10和11的新更新兼容
系统要求
Windows10 或11
英文介绍
MicroShield is a comprehensive photon/gamma ray shielding and dose assessment program that is widely used for designing shields, estimating source strength from radiation measurements, minimizing exposure to people, and teaching shielding principles.
MicroShield is useful to health physicists, waste managers, design engineers, and radiological engineers and only requires a basic knowledge of radiation and shielding principles.
MicroShield is fully interactive and utilizes extensive input error checking. Integrated tools provide graphing of results, material and source file creation, source inference with decay (dose-to-Ci calculations accounting for decay and daughter buildup), projection of exposure rate versus time as a result of decay, access to material and nuclide data, and decay heat calculations.
MicroShield Version 13 Lastest Features:
MicroShield V13 includes
Improved computational algorithms including the addition of updated National Institute of Standards and Technology (NIST) mass attenuation factors [Hubbell, J.H. and Seltzer, S.M. (2004)].
Enlargement of the Custom Material Library to include more than 30 new custom materials, bringing the library to over 100 materials.
Added functionality to set a fixed air gap for each dose point.
Inclusion of dose conversion factors from ICRP-21 as well as ANSI/ANS 6.1.1-1991 and 2020.
Full compatibility with the latest updates to Microsoft Windows 10 and 11.
MICROSHIELD’S FEATURES INCLUDE:
Full Microsoft Windows 8/8.1 (32 bit and 64 bit), Windows 7 (32 bit and 64 bit), Vista and XP compatibility.
Ability to export results into Microsoft Office applications.
Ability to utilize international numerical formats (decimal commas, etc.).
Current industry standard dose conversion factors including ICRP-116, ICRP-74, ICRP-51 as well as ANSI/ANS-6.1.1.
Sixteen geometries that accommodate offset dose points and as many as ten standard shields plus source self-shielding and cylinder cladding.
The geometry display for entry is re-scaled as dimensions are entered. Dimensional data are accepted in meters, centimeters, feet, or inches.
Library data (radionuclides, attenuation, buildup, and dose conversion) reflect standard data from industry standard radiation libraries ICRP-38 and ICRP-107 as well as ANSI/ANS standards and RSICC publications.
Buildup and uncollided results are both automatically and simultaneously calculated.
Sources may be created and saved and moved among cases (either as nuclides or energies) and as concentrations or totals. Several photon grouping methods are provided including custom (user defined) grouping methods.
Source decay can be calculated with daughter products generated using the same algorithms as found in the RadDecay software
GEOMETRY – SOURCE CONFIGURATIONS INCLUDED:
Point
Line
Disk
Rectangular Area – Vertical
Rectangular Area – Horizontal
Sphere
Cylinder Volume – Side Shields
Cylinder Volume – End Shields
Cylinder Surface – Internal Dose Point
Cylinder Surface – External Dose Point
Annular Cylinder – Internal Dose Point
Annular Cylinder – External Dose Point
Rectangular Volume
Truncated Cone
Infinite Plane
Infinite Slab
Requirements:
Microsoft Windows 10or 11