ATLAS探测器描述参数的主要编号数据库
Primary Numbers Database for ATLAS Detector Description Parameters
摘要：
介绍了ATLAS实验中探测器描述参数数据库的设计和现状。ATLAS主编号是定义模拟中探测器几何结构和数字化的参数，以及某些重建参数。由于详细的ATLAS检测器描述需要超过10，000个此类参数，因此首选解决方案是为所有这些数据提供单个经过验证的来源。数据库存储每个参数集合对象的数据字典，为基于对象的参数检索提供模式演化支持。相同的Primary Numbers被提供给许多不同的访问数据库的客户端：ATLAS软件框架Athena、Geant 3遗产框架Fracsim、Geant 4开发者框架FADS/Goofy、用于探测器描述的XML输出生成器，以及用于交互式数据导航的几个最终用户客户端，包括基于Web的浏览器和ROOT。选择MySQL数据库产品进行实施提供了额外的好处：Primary Numbers数据库可以在断开连接时在开发人员的笔记本电脑上使用（使用MySQL嵌入式服务器技术），数据在笔记本电脑连接时更新（使用MySQL数据库复制）。
英文摘要：
We present the design and the status of the database for detector description parameters in ATLAS experiment. The ATLAS Primary Numbers are the parameters defining the detector geometry and digitization in simulations, as well as certain reconstruction parameters. Since the detailed ATLAS detector description needs more than 10,000 such parameters, a preferred solution is to have a single verified source for all these data. The database stores the data dictionary for each parameter collection object, providing schema evolution support for object-based retrieval of parameters. The same Primary Numbers are served to many different clients accessing the database: the ATLAS software framework Athena, the Geant3 heritage framework Atlsim, the Geant4 developers framework FADS/Goofy, the generator of XML output for detector description, and several end-user clients for interactive data navigation, including web-based browsers and ROOT. The choice of the MySQL database product for the implementation provides additional benefits: the Primary Numbers database can be used on the developers laptop when disconnected (using the MySQL embedded server technology), with data being updated when the laptop is connected (using the MySQL database replication).
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