ITR: A Versatile, Extensible System for Neutron Scattering Data Visualization and Analysis

ITR：用于中子散射数据可视化和分析的多功能、可扩展系统

• 批准号: 0218882
• 负责人: Dennis Mikkelson
• 金额: $ 26万
• 依托单位: University of Wisconsin-Stout
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-08-15 至 2005-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0218882&HistoricalAwards=false
• 关键词: ITR; Versatile; Extensible; System; Neutron

This is a grant funded through the Information Technology Research (ITR) initiative. The award is to a predominantly undergraduate institution. Time-of-flight neutron scattering experiments provide important insights into the structure and dynamics of materials. These experiments are critical for academic and applied research and are carried out at a small number of advanced research facilities around the world, including the Intense Pulsed Neutron Source (IPNS) Division at Argonne National Laboratory (ANL). To utilize these resources effectively, this project will develop a freely available, platform-independent, Java-based system for access, visualization and analysis of neutron scattering data. Initial work has already been undertaken. The result of this initial work is an Integrated Spectral Analysis Workbench (ISAW). ISAW is, in principle, applicable to data from a wide variety of sources and is extensible by users of the system both through "plug-in" operators written in Java and through a basic scripting language. The system provides some highly interactive visualizations, analyses and transformations of neutron scattering data in real time for some instrument types.The current project will add important new capabilities to ISAW. Single crystal diffractometers that utilize multiple area detectors and LPSD's to obtain volumes of data as a function of time-of-flight pose unique problems. There is a large amount of data and the data is not regularly gridded. These problems are exacerbated when the data is mapped into Q-space or reciprocal space. This project will construct operators and 3-D viewers that allow scientists to view, select and manipulate data from such instruments in scientifically meaningful spaces.In addition, the project will add interactive data modeling and extensive data access capabilities to ISAW. Specifically, access to raw time-of-flight event data and data from ancillary equipment will be added. Support for importing and exporting data will be extended to the file formats NeXus, XML, and some site-specific formats from other neutron facilities.This is a grant funded through the Information Technology Research (ITR) initiative. The award is to a predominantly undergraduate institution. Time-of-flight neutron scattering experiments provide important insights into the structure and dynamics of materials. These experiments are critical for academic and applied research and are carried out at a small number of advanced research facilities around the world, including the Intense Pulsed Neutron Source (IPNS) Division at Argonne National Laboratory (ANL). To utilize these resources effectively, this project will develop a freely available, platform-independent, Java-based system for access, visualization and analysis of neutron scattering data. Initial work has already been undertaken. The result of this initial work is an Integrated Spectral Analysis Workbench (ISAW). ISAW is, in principle, applicable to data from a wide variety of sources and is extensible by users of the system both through "plug-in" operators written in Java and through a basic scripting language. The system provides some highly interactive visualizations, analyses and transformations of neutron scattering data in real time for some instrument types.The current project will add important new capabilities to ISAW. Single crystal diffractometers that utilize multiple area detectors and LPSD's to obtain volumes of data as a function of time-of-flight pose unique problems. There is a large amount of data and the data is not regularly gridded. These problems are exacerbated when the data is mapped into Q-space or reciprocal space. This project will construct operators and 3-D viewers that allow scientists to view, select and manipulate data from such instruments in scientifically meaningful spaces.In addition, the project will add interactive data modeling and extensive data access capabilities to ISAW. Specifically, access to raw time-of-flight event data and data from ancillary equipment will be added. Support for importing and exporting data will be extended to the file formats NeXus, XML, and some site-specific formats from other neutron facilities.

这是通过信息技术研究（ITR）倡议资助的赠款。 该奖项是一个以本科为主的机构。飞行时间中子散射实验为材料的结构和动力学提供了重要的见解。 这些实验对学术和应用研究至关重要，并在世界各地的少数先进研究设施中进行，包括阿贡国家实验室（ANL）的强脉冲中子源（IPNS）部门。 为了有效地利用这些资源，本项目将开发一个免费提供的、独立于平台的、基于Java的系统，用于中子散射数据的访问、可视化和分析。 初步工作已经开始。 这一初步工作的结果是一个综合频谱分析仪（ISAW）。ISAW原则上适用于各种来源的数据，系统用户可通过Java编写的“插件”运算符和基本脚本语言进行扩展。 该系统为某些仪器类型的中子散射数据提供了真实的实时的高度交互式可视化、分析和转换。 利用多区域检测器和LPSD来获得作为飞行时间的函数的大量数据的单晶衍射仪造成了独特的问题。 数据量很大，而且数据没有定期网格化。 当数据被映射到Q空间或倒易空间时，这些问题更加严重。 该项目将建造操作器和三维观察器，使科学家能够在具有科学意义的空间中观察、选择和操纵来自这些仪器的数据，此外，该项目还将为ISAW增加交互式数据建模和广泛的数据访问能力。 具体而言，将增加对原始飞行时间事件数据和来自辅助设备的数据的访问。 对数据导入和导出的支持将扩展到文件格式NeXus，XML和其他中子设施的某些特定站点格式。这是通过信息技术研究（ITR）计划资助的赠款。 该奖项是一个以本科为主的机构。飞行时间中子散射实验为材料的结构和动力学提供了重要的见解。 这些实验对学术和应用研究至关重要，并在世界各地的少数先进研究设施中进行，包括阿贡国家实验室（ANL）的强脉冲中子源（IPNS）部门。 为了有效地利用这些资源，本项目将开发一个免费提供的、独立于平台的、基于Java的系统，用于中子散射数据的访问、可视化和分析。 初步工作已经开始。 这一初步工作的结果是一个综合频谱分析仪（ISAW）。ISAW原则上适用于各种来源的数据，系统用户可通过Java编写的“插件”运算符和基本脚本语言进行扩展。 该系统为某些仪器类型的中子散射数据提供了真实的实时的高度交互式可视化、分析和转换。 利用多区域检测器和LPSD来获得作为飞行时间的函数的大量数据的单晶衍射仪造成了独特的问题。 数据量很大，而且数据没有定期网格化。 当数据被映射到Q空间或倒易空间时，这些问题更加严重。 该项目将建造操作器和三维观察器，使科学家能够在具有科学意义的空间中观察、选择和操纵来自这些仪器的数据，此外，该项目还将为ISAW增加交互式数据建模和广泛的数据访问能力。 具体而言，将增加对原始飞行时间事件数据和来自辅助设备的数据的访问。 对导入和导出数据的支持将扩展到NeXus、XML文件格式以及其他中子设施的一些特定于站点的格式。