标题： musrfit：一个用于muSR数据分析的免费跨平台框架 显示英文标题

标题： musrfit: A free platform-independent framework for muSR data analysis

摘要： 一个用于muSR的免费数据分析框架已经开发完成。 musrfit完全用C++编写，在GNU/Linux、Mac OS X以及Microsoft Windows下运行，并根据GNU GPL条款进行分发。 它基于CERN ROOT框架，并利用Minuit优化例程进行拟合。 它由一组程序组成，允许用户分析和可视化数据。 拟合过程由一个带有扩展语法的ASCII输入文件控制。 一个专用的文本编辑器可以帮助用户以高效的方式创建和处理这些文件，执行拟合，显示数据，获取在线帮助等。 还提供了一个通用工具，用于生成新的输入文件和提取拟合参数。 musrfit提供了一个插件机制，允许调用用户定义的函数。 因此，该框架的功能可以以最小的用户开销进行扩展。 目前，musrfit可以读取以下设施的原始数据文件：PSI-BIN，MDU（PSI），ROOT（LEM/PSI），WKM（过时的ASCII格式），MUD（TRIUMF），NeXus（ISIS）。 显示英文摘要

摘要： A free data-analysis framework for muSR has been developed. musrfit is fully written in C++, is running under GNU/Linux, Mac OS X, as well as Microsoft Windows, and is distributed under the terms of the GNU GPL. It is based on the CERN ROOT framework and is utilizing the Minuit optimization routines for fitting. It consists of a set of programs allowing the user to analyze and visualize the data. The fitting process is controlled by an ascii-input file with an extended syntax. A dedicated text editor is helping the user to create and handle these files in an efficient way, execute the fitting, show the data, get online help, and so on. A versatile tool for the generation of new input files and the extraction of fit parameters is provided as well. musrfit facilitates a plugin mechanism allowing to invoke user-defined functions. Hence, the functionality of the framework can be extended with a minimal amount of overhead for the user. Currently, musrfit can read the following facility raw-data files: PSI-BIN, MDU (PSI), ROOT (LEM/PSI), WKM (outdated ascii format), MUD (TRIUMF), NeXus (ISIS).