Development and test results of a digital data transmission system for Liquid Krypton Calorimeter level 0 trigger system for the NA62 experiment at CERN

B. Checcucci, G. Anzivino, M. Barbanera, V. Bonaiuto, P. Cenci, N. De Simone, V. Duk, R. Fantechi, L. Federici, M. Lupi, G. Paoluzzi, A. Papi, M. Pepe, M. Piccini, C. Santoni, A. Salamon, S. Venditti
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引用次数: 4

Abstract

The NA62 experiment at the European Organization for Nuclear Research (CERN) Super Proton Synchrotron (SPS) aims to measure the Branching Ratio of the very rare kaon decay K+ → π+νν, collecting O (100) events with a 10% background to make a stringent test of the Standard Model. One of the main backgrounds to the proposed measurement is represented by the K+ → π+π0, decay. To suppress this background an efficient photo veto system is foreseen with the Liquid Krypton (LKr) Electromagnetic Calorimeter Level 0 (L0) trigger. The development of a high-performance as well as reliable digital data system addresses this issue providing a mean to have the right bandwidth and efficiency to transmit experimental data to and from the counting room. This paper describes the LKr L0 trigger system, with particular emphasis for what concerns a LVDS digital data link used inside the system. Some aspects relative to the test set-up implementation as well as protocol test used to evaluate and qualify the digital data system are also part of the paper.
欧洲核子研究中心NA62实验用液态氪量热计0级触发系统数字数据传输系统研制及测试结果
欧洲核子研究组织(CERN)超级质子同步加速器(SPS)的NA62实验旨在测量非常罕见的K+→π+ν衰变的分支比,在10%的背景下收集O(100)个事件,对标准模型进行严格的测试。所提出的测量的主要背景之一是由K+→π+π0衰变表示的。为了抑制这种背景,设想了一种有效的光否决系统,该系统采用液态氪(LKr)电磁量热计0级(L0)触发器。高性能和可靠的数字数据系统的发展解决了这一问题,提供了一种具有适当带宽和效率的方法来传输实验数据到计数室。本文介绍了LKr L0触发系统,特别强调了系统内部使用的LVDS数字数据链路。本文还讨论了与测试装置的实现以及用于评估和鉴定数字数据系统的协议测试有关的一些问题。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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