Conceptual study of a trigger module for the CMS Tracker at SLHC

Conceptual study of a trigger module for the CMS Tracker at SLHC
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SLHC CMS 跟踪器触发模块的概念研究

DOI:
10.1016/j.nima.2010.04.110
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发表时间:
2011
期刊:
Accelerators, Spectrometers, Detectors and Associated Equipment
影响因子:
--
通讯作者:
Hall G
Hall G
中科院分区:
--
文献类型:
--
作者:
Hall G

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CMS实验正在计划对其跟踪系统进行重大升级,以适应大型强子对撞机加速器光度预期增加到1035厘米的−2S−1。届时,它将不得不应对每个束团交叉的数百个相互作用,以及从碰撞中涌出的数以千计的带电粒子通量。CMS要求跟踪器数据对第一级触发做出贡献,以保持当前的100 kHz速率,同时仅增加几个μS的触发判决延迟。这必须在不影响对材料预算非常敏感的跟踪性能的情况下实现。要实现这一点,系统的一个关键部分将是设计合适的模块来生成触发原语。一种可能的解决方案是基于所谓的“堆叠式跟踪器模块”,使用位于跟踪器体积内中间半径处的紧密间隔、粗像素化的传感器层。比较每一层中的命中模式以识别高PTTrack候选。已经进行了支持基本概念的模拟。提出了一种基本的读出结构,并描述了其中的一些电子含义。对可能的功耗以及数据速率和链路带宽要求进行了估计。
The CMS experiment is planning a major upgrade of its tracking system to adapt to an expected increase in luminosity of the LHC accelerator to 1035cm−2s−1. It will then have to cope with several hundred interactions per bunch crossing and fluxes of thousands of charged particles emerging from collisions. CMS requires tracker data to contribute to the first level trigger, to maintain the present 100kHz rate while increasing the trigger decision latency by only a few μs. It must be achieved without compromising the tracking performance which is very sensitive to the material budget. A key part of a system to achieve this will be the design of a suitable module to generate trigger primitives. One possible solution is based on the so-called “stacked tracker modules” using closely spaced, coarsely pixilated sensor layers situated at intermediate radius within the tracker volume. The pattern of hits in each layer is compared to identify high pTtrack candidates. Simulations have been carried out which support the basic concept. A basic readout architecture is proposed and some of the electronic implications are described. Estimates of likely power consumption are given, as well as data rates and link bandwidth requirements.
高能物理前端 ASIC 的最新进展
影响因子: 1.4
作者:
G. Hall
通讯作者: G. Hall
在 Super-LHC 上使用 CMS 像素探测器进行一级触发的提案
DOI: --
发表时间: 2007
期刊:
影响因子: --
作者:
F. Palla
通讯作者: F. Palla
影响因子: 1.4
作者:
G. Hall
通讯作者: G. Hall