SOFTWARE DEVELOPMENTS FOR PROCESSING CIRCULARLY SYMMETRIC 2D DIFFRACTION/SCATTER

用于处理圆对称二维衍射/散射的软件开发

• 批准号: 8362097
• 负责人: PING LIU
• 金额: $ 5.48万
• 依托单位: STANFORD UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-03-01 至 2012-02-29
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/8362097
• 关键词: Area; Computer software; Computers; Cosmic; Country; Data; Event; Funding; Grant; Image; Institution; Internet; Linux; National Center for Research Resources; Principal Investigator; Process; Radiation; Reading; Research; Research Infrastructure; Resources; Scientist; Source; Sum; Time; United States National Institutes of Health; Variant; arm; computerized data processing; cost; data reduction; detector; programs; software development; structural biology; tool; transmission process; two-dimensional; web site

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. Primary support for the subproject and the subproject's principal investigator may have been provided by other sources, including other NIH sources. The Total Cost listed for the subproject likely represents the estimated amount of Center infrastructure utilized by the subproject, not direct funding provided by the NCRR grant to the subproject or subproject staff. The data reduction program SasTool (short for Small Angle Scattering Tool) is developed to perform data processing in real time on two-dimensional diffraction/scattering images generated by our CCD and pixel array detectors. SasTool reads in a parameter file, and performs the data reduction tasks in an automated and timely manner. SasTool takes any size of 16bit and 32bit TIFF images, including those generated by Rayonix/MarUSA detectors, the Pilatus 300K detector, and the Hamamatsu image intensified CCD detector. SasTool incorporates features such as the ability to exclude pixels from selected areas (such as behind beam stop/supporting arm) and to mitigate the effects of incidental events caused by cosmic rays (?zingers?). A new version for Linux computers was developed this year, and some new features, such as using variations in transmission beam intensity to exclude potentially bad images from inclusion in summed and averaged data, were also added. The software is made available on our internet web site, and there have been 231 downloads as of November 30, 2010 by scientists from 56 institutions in 12 countries since August 1, 2007, when we began recording downloads.

这个子项目是许多利用资源的研究子项目之一 由NIH/NCRR资助的中心拨款提供。子项目的主要支持 而子项目的主要调查员可能是由其他来源提供的， 包括其它NIH来源。 列出的子项目总成本可能 代表子项目使用的中心基础设施的估计数量， 而不是由NCRR赠款提供给子项目或子项目工作人员的直接资金。 开发了小角散射工具（Small Angle Scattering Tool）数据处理程序SasTool，对CCD和像素阵列探测器产生的二维衍射/散射图像进行真实的实时数据处理。SasTool读取参数文件，并自动及时地执行数据简化任务。 SasTool可拍摄任何尺寸的16位和32位TIFF图像，包括由Rayonix/MarUSA探测器、Pilatus 300 K探测器和Hamamatsu图像增强CCD探测器生成的图像。 SasTool包含的功能包括从选定区域（如光束停止器/支撑臂后面）排除像素的能力，以及减轻宇宙射线（？zingers？）。 今年开发了一个用于Linux计算机的新版本，还增加了一些新功能，例如使用传输光束强度的变化来排除可能的不良图像，使其不包括在求和和平均数据中。该软件可在我们的互联网网站上获得，自2007年8月1日我们开始记录下载以来，截至2010年11月30日，来自12个国家56个机构的科学家共下载了231次。