The Data Handling Processor for the Belle II Pixel Vertex Detector: efficiency optimization
The Data Handling Processor for the Belle II Pixel Vertex Detector: efficiency optimization
复制标题
Belle II 像素顶点检测器的数据处理处理器：效率优化
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
N. Wermes
中科院分区：
文献类型：
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作者：
M. Lemarenko;M. Havranek;T. Hemperek;T. Kishishita;H. Krüger;N. Wermes
目前的日本B工厂（KEK-B）计划于2015年进行重大升级。与这台新机器（SuperKEK-B）一起，还将运行一台新的探测器Belle-II，以充分利用计划的8 × 1035 s−1cm−2（比以前大40倍）的光度。新实验的主要变化之一将是在相互作用点附近引入一个新的子探测器，以精确重建B介子系统的衰变顶点。这种基于DEPFET技术的像素探测器将由20个梯形模块组成，这些模块围绕束管布置在两个圆柱形层中。每个模块将通过放置在每个传感器两端的模拟和数字ASIC的组合独立读出。数字芯片，数据处理处理器（DHP），被设计为控制读出链，预处理和压缩数据。介绍了该芯片的结构和性能优化的最新成果。
A major upgrade of the current Japanese B-Factory (KEK-B) is planned for 2015. Together with this new machine (SuperKEK-B) also a new detector, Belle-II, will be operated to fully exploit the planned luminosity of 8 × 1035 s−1cm−2 (40 times larger than previously). One of the major changes in the new experiment will be the introduction of a new sub-detector, close to the interaction point, to allow a precise reconstruction of the decay vertices of the B meson systems. This pixel detector, based on the DEPFET technology, will consist of 20 ladder modules arranged in two cylindrical layers around the beam pipe. Each of the modules will be read-out independently by a combination of analog and digital ASICs placed at both ends of each sensor. The digital chip, the Data Handling Processor (DHP), is designed to control the readout chain and to pre-process and to compress the data. The chip structure and the latest results about its performance optimization will be presented.