PHENIX on-line systems

Summary, in English

The PHENIX On-Line system takes signals from the Front End Modules (FEM) on each detector subsystem for the purpose of generating events for physics analysis. Processing of event data begins when the Data Collection Modules (DCM) receive data via fiber-optic links from the FEMs. The DCMs format and zero suppress the data and generate data packets. These packets go to the Event Builders (EvB) that assemble the events in final form. The Level-1 trigger (LVL1) generates a decision for each beam crossing and eliminates uninteresting events. The FEMs carry out all detector processing of the data so that it is delivered to the DCMs using a standard format. The FEMs also provide buffering for LVL1 trigger processing and DCM data collection. This is carried out using an architecture that is pipelined and deadtimeless. All of this is controlled by the Master Timing System (MTS) that distributes the RHIC clocks. A Level-2 trigger (LVL2) gives additional discrimination. A description of the components and operation of the PHENIX On-Line system is given and the solution to a number of electronic infrastructure problems are discussed. (C) 2002 Elsevier Science B.V. All rights reserved.

• Author: SS Adler; M Allen; G Alley; R Amirikas; Y Arai; TC Awes; KN Barish; F Barta; S Batsouli; S Belikov; MJ Bennett; M Bobrek; JG Boissevain; S Boose; C Britton; L Britton; WL Bryan; MM Cafferty; TA Carey; WC Chang; CY Chi; M Chi; V Cianciolo; BA Cole; P Constantin; KC Cook; H Cunitz; EJ Desmond; K Ebisu; YV Efremenko; K El Chenawi; MS Emery; D Engo; N Ericson; DE Fields; S Frank; JE Frantz; A Franz; AD Frawley; J Fried; J Gannon; TF Gee; R Gentry; P Giannotti; Hans-Åke Gustafsson; JS Haggerty; S Hahn; J Halliwell; H Hamagaki; AG Hansen; H Hara; J Harder; X He; F Heistermann; TK Hemmick; M Hibino; JC Hill; K Homma; BV Jacak; U Jagadish; J Jia; F Kajihara; S Kametani; Y Kamyshkov; A Kandasamy; JH Kang; J Kapustinsky; K Katou; MA Kelley; S Kelly; J Kikuchi; SY Kim; YG Kim; E Kistenev; D Kotchetkov; K Kurita; JG Lajoie; M Lenz; W Lenz; XH Li; S Lin; MX Liu; S Markacs; F Matathias; T Matsumoto; J Mead; RE Mischke; GC Mishra; A Moore; M Muniruzzamann; M Musrock; JL Nagle; BK Nandi; J Newby; Joakim Nystrand; E O'Brien; P O'Connor; H Ohnishi; Anders Oskarsson; Lennart Österman; K Oyama; L Paffrath; CE Pancake; VS Pantuev; AN Petridis; RP Pisani; T Plagge; F Plasil; ML Purschke; S Rankowitz; R Rao; M Rau; KF Read; SS Ryu; T Sakaguchi; HD Sato; R Seto; T Shiina; David Silvermyr; J Simon-Gillo; M Simpson; W Sippach; HD Skank; S Skutnik; GA Sleege; GD Smith; M Smith; PW Stankus; P Steinberg; T Sugitate; JP Sullivan; A Taketani; M Tamai; Y Tanaka; WD Thomas; R Todd; F Toldo; G Turner; T Ushiroda; J Velkovska; HW van Hecke; M Van Lith; L Villatte; W Von Achen; JW Walker; HQ Wang; SN White; AL Wintenberg; C Witzig; L Wood; W Xie; GR Young; WA Zajc; C Zhang; L Zhang
• Department/s: Particle and nuclear physics
• Publishing year: 2003
• Language: English
• Pages: 560-592
• Publication/Series: Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
• Volume: 499
• Issue: 2-3
• Links: http://dx.doi.org/10.1016/S0168-9002(02)01957-5
• Document type: Journal article
• Publisher: Elsevier
• Topic: Accelerator Physics and Instrumentation
• Keywords: electronics; trigger; data acquisition; RHIC; PHENIX
• Status: Published
• ISBN/ISSN/Other: ISSN: 0167-5087