The ABC130 barrel module prototyping programme for the ATLAS strip tracker

The ABC130 barrel module prototyping programme for the ATLAS strip tracker
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用于 ATLAS 带状跟踪器的 ABC130 筒模块原型设计程序

DOI:
10.1088/1748-0221/15/09/p09004
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发表时间:
2020
影响因子:
1.3
通讯作者:
Poley L
Poley L
中科院分区:
工程技术4区
文献类型:
--
作者:
Poley L

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对于大型强子对撞机的高亮度升级,ATLAS[1]内部探测器将被一个新的全硅内跟踪器(ITK)取代,ITK由一个像素跟踪器[4]和一个条带跟踪器[5]组成。ITK条带跟踪器的主要组件是模块,包括一个硅条传感器、安装在称为混合体的电子电路上的多个定制读出芯片和电源板。在ITK条带探测器的中心区域,四个桶层包括11,000个安装在横梁上的模块,使得传感器平行于光束轴排列(见图1a)。前部区域的两个端盖由六个圆盘构成,总共支撑着安装在花瓣上的7,000个模块,使得传感器垂直于光束轴排列(见图1b)。条带追踪器筒体和端盖中的模块被设计为包含相同的材料和组件,具有相同的功能,但几何形状不同。筒体区域只使用两种类型的传感器,而端盖的密封覆盖需要六种传感器几何形状。在此,仅介绍了为筒体区域设计的模块。为了准备在美国、英国和中国的10个建筑工地生产11,000个桶模块,进行了广泛的原型制作计划。原型方案的目的是对工具和组装、读出软件和测试程序的概念进行现实测试,因此,原型模块使用读出芯片、传感器和其他类似于预计将在生产中使用的部件。
For the High-Luminosity Upgrade of the Large Hadron Collider, the ATLAS [1] Inner Detector will be replaced with a new, all silicon Inner Tracker (ITk), composed of a pixel tracker [4] and a strip tracker [5].The main component of the ITk strip tracker is the module, comprising a silicon strip sensor, multiple custom readout chips mounted on a electronic circuit, called a hybrid, and a powerboard. In the central region of the ITk strip detector, the four barrel layers comprise 11,000 modules mounted on staves such that the sensors are arranged parallel to the beam axis (see figure 1a). The two end-caps in the forward region are constructed from six disks supporting a total of 7,000 modules mounted on petals such that the sensors are arranged orthogonal to the beam axis (see figure 1b). Modules in the strip tracker barrel and end-caps were designed to contain the same materials and components, which have the same functionality, but different geometries. Only two types of sensors are used in the barrel region, whereas six sensor geometries are required for hermetic coverage of the end-cap. Here, only modules designed for the barrel region are presented. An extensive prototyping program was conducted in preparation for the production of 11,000 barrel modules at ten construction sites in the US, UK and China. The aim of the prototyping programme was to develop realistic tests of the concepts for tooling and assembly, readout software and testing procedures, hence, the prototype modules use readout chips, sensors and other components similar to those foreseen to be used in production.
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