MicroShield® - 辐射剂量计算软件

· MicroShield 13版本已正式发布!        

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种源项模型并自带含12种屏蔽材料的材料库以及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^®是交互式的，并利用广泛的输入错误检查。集成工具提供结果图，材料和源文件创建，具有衰减的源推断（考虑衰变和子堆积的剂量——Ci计算），衰减的暴露率与实践的预测，材料和核素数据的访问和衰变热计算。

MicroShield^®现在有两个不同的版本：MicroShield^® Pro和MicroShield^® LT。MicroShield^® Pro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。MicroShield^® LT提供了基本的三维解决方案算法和基本功能。

MicroShield^®功能比较：

MicroShield^®通用功能

• 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等定制材料

• 自动和同时计算积累和未积分的结果

• 可以为情况设计和保存多达八种自定义材料，以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（Pro版）

• 能够使用数字格式（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

Windows^® 10 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^® 10 or 11