Beam tests of an integrated prototype of the ATLAS Forward Proton detector
J. Lange, L. Adamczyk, G. Avoni, E. Banas, A. Brandt, M. Bruschi, P. Buglewicz, E. Cavallaro, D. Caforio, G. Chiodini, L. Chytka, K. Ciesla, P. M. Davis, M. Dyn… 展开作者
J. Lange, L. Adamczyk, G. Avoni, E. Banas, A. Brandt, M. Bruschi, P. Buglewicz, E. Cavallaro, D. Caforio, G. Chiodini, L. Chytka, K. Ciesla, P. M. Davis, M. Dyndal, S. Grinstein, K. Janas, K. Jirakova, M. Kocian, K. Korcyl, I. Lopez Paz, D. Northacker, L. Nozka, M. Rijssenbeek, L. Seabra, R. Staszewski, P. Swierska, T. Sykora
The ATLAS Forward Proton (AFP) detector is intended to measure protons scattered at small angles from the ATLAS interaction point. To this end, a combination of 3D Silicon pixel tracking modules and Quartz-Cherenkov time-of-flight (ToF) detectors is installed 210m away from the interaction point at both sides of ATLAS. Beam tests with an AFP prototype detector combining tracking and timing sub-detectors and a common readout have been performed at the CERN-SPS test-beam facility in November 2014 and September 2015 to complete the system integration and to study the detector performance. The successful tracking-timing integration was demonstrated. Good tracker hit efficiencies above 99.9% at a sensor tilt of 14°, as foreseen for AFP, were observed. Spatial resolutions in the short pixel direction with 50 μm pitch of 5.5 +/- 0.5 μm per pixel plane and of 2.8 +/- 0.5 μm for the full four-plane tracker at 14° were found, largely surpassing the AFP requirement of 10 μm. The timing detector showed also good hit efficiencies above 99%, and a full-system time resolution of 35 +/- 6 ps was found for the ToF prototype detector with two Quartz bars in-line (half the final AFP size) without dedicated optimisation, fulfilling the requirements for initial low-luminosity AFP runs.
Component Prototypes towards a Low-Latency, Small-form-factor Optical Link for the ATLAS Liquid Argon Calorimeter Phase-I Trigger Upgrade
本文介绍了几个组件原型的ATLAS液氩量热计第一阶段触发升级设计的低延迟，小形状因子的光链路。一个定制的双通道光发射器模块的原型，微型光发射器（MTx），与单独的发射器光学子组件（TOSA）已被证明在数据速率高达8 Gbps的每通道。一个垂直腔面发射激光器（VCSEL）驱动器ASIC已经开发出来，并用于目前的MTx原型。一个串行器ASIC原型，工作在每通道高达8 Gbps，已被设计和测试。一个低延迟，低开销的编码器ASIC原型的设计和测试。整个链路的延迟，包括发送器延迟和接收器延迟，但不包括光纤的延迟，估计小于57.9 ns。MTx的尺寸为45 mm x 15 mm x 6 mm。
A Radiation-Hard Dual Channel 4-bit Pipeline for a 12-bit 40 MS/s ADC Prototype with extended Dynamic Range for the ATLAS Liquid Argon Calorimeter Readout Electronics Upgrade at the CERN LHC
