Simulation and Optimization Studies of the LHCb Beetle Readout ASIC and Machine Learning Approach for Pulse Shape Reconstruction.
Simulation and Optimization Studies of the LHCb Beetle Readout ASIC and Machine Learning Approach for Pulse Shape Reconstruction.
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DOI：
10.3390/s21186075
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发表时间：
2021-09-10
期刊：
影响因子：
--
通讯作者：
Williams M
中科院分区：
文献类型：
--
作者：
Kopciewicz P;Akiba KC;Szumlak T;Sitko S;Barter W;Buytaert J;Eklund L;Hennessy K;Koppenburg P;Latham T;Majewski M;Oblakowska-Mucha A;Parkes C;Qian W;Velthuis J;Williams M
介绍了甲虫读出专用集成电路的优化设计和基于机器学习方法的信号处理软件的性能。甲壳虫读出芯片是为大型强子对撞机(LHCb)跟踪探测器开发的，并在LHC数据采集的第一次和第二次顶点定位器(VELO)中使用。环绕大型强子对撞机束流交叉区域的VELO是大型强子对撞机跟踪系统的主要部分。甲壳虫芯片被用来从硅微带中读出信号，对其进行积分和放大。本文的研究内容包括对其电子结构的优化，在保持整个芯片良好的模拟响应状态的同时，实现较低的功耗占用面积和较低的传感器工作温度。研究表明，优化工作温度是可能的，当探测器受到高度照射时，优化工作温度可能是有益的。即使硅温度降低一度，漏电流也会显著降低。未来的硅跟踪器上游跟踪器(UT)正在进行类似的研究，该跟踪器将于2021年开始在大型强子对撞机上运行。预计UT探测器的内部将遭受与第二轮中受辐射最多的Velo传感器类似的辐射损伤。在分析过程中，我们还开发了一种使用人工神经网络方法重建脉冲波形的通用方法。该技术可以在任何类型的前端读出芯片的情况下重复使用。
The optimization of the Beetle readout ASIC and the performance of the software for the signal processing based on machine learning methods are presented. The Beetle readout chip was developed for the LHCb (Large Hadron Collider beauty) tracking detectors and was used in the VELO (Vertex Locator) during Run 1 and 2 of LHC data taking. The VELO, surrounding the LHC beam crossing region, was a leading part of the LHCb tracking system. The Beetle chip was used to read out the signal from silicon microstrips, integrating and amplifying it. The studies presented in this paper cover the optimization of its electronic configuration to achieve the lower power consumption footprint and the lower operational temperature of the sensors, while maintaining a good condition of the analogue response of the whole chip. The studies have shown that optimizing the operational temperature is possible and can be beneficial when the detector is highly irradiated. Even a single degree drop in silicon temperature can result in a significant reduction in the leakage current. Similar studies are being performed for the future silicon tracker, the Upstream Tracker (UT), which will start operating at LHC in 2021. It is expected that the inner part of the UT detector will suffer radiation damage similar to the most irradiated VELO sensors in Run 2. In the course of analysis we also developed a general approach for the pulse shape reconstruction using an ANN approach. This technique can be reused in case of any type of front-end readout chip.
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影响因子：
1.3
作者：
Bugiel, Sz.;Dasgupta, R.;Szumlak, T.
通讯作者：
Szumlak, T.
DOI：
10.1016/s0168-9002(02)01454-7
发表时间：
2002-11-21
影响因子：
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影响因子：
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作者：
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