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# 1999 IEEE Conference on Real-Time Computer Applications in Nuclear Particle and Plasma Physics. 11th IEEE NPSS Real Time Conference. Conference Record (Cat. No.99EX295)

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• ### 1999 IEEE Conference on Real-Time Computer Applications in Nuclear Particle and Plasma Physics. 11th IEEE NPSS Real Time Conference. Conference Record (Cat. No.99EX295)

Publication Year: 1999
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• ### The performance of three CAMAC controllers in a real-world simulation

Publication Year: 1999
| | PDF (40 KB)

Summary form only given. The performance of three popular CAMAC controllers has been studied. The model 8901A from LeCroy Corporation, the model 3922 from KineticSystems corporation, and the model 73A from Jorway Corporation were connected to a dual processor computer via PCI host adapters. A National Instruments PCI-GPIB card was used for the 8901A, the KineticSystems model 2915 card was used for... View full abstract»

• ### Data acquisition, analysis, and monitoring for cancer therapy at GSI

Publication Year: 1999
| | PDF (43 KB)

Summary form only received as follows: A system of three dimensional raster scanning carbon beams used for cancer therapy has been designed and built at GSI and has been in operation since the end of 1998. The front-end real-time system is based on VME boards with DSPs designed and built at GSI. The system is operated in two modes: first, the treatment mode. The beam is steered automatically accor... View full abstract»

• ### The NA48 LKr calorimeter readout electronics

Publication Year: 1999, Page(s):110 - 115
| | PDF (515 KB)

The NA48 experiment at the CERN SPS accelerator is making a measurement of the direct CP violation parameter /spl epsiv/'//spl epsiv/ by comparing the four rates of decay of K/sub S/ and K/sub L/ into 2/spl pi//sup 0/ and /spl pi//sup +//spl pi//sup -/. To reconstruct the decays into 2/spl pi//sup 0/ the information from the almost 13500 channels of a quasi-homogeneous liquid krypton electromagnet... View full abstract»

• ### PC DAQ, a Windows based DAQ system

Publication Year: 1999
| | PDF (40 KB)

Summary form only given. PC DAQ is a Windows NT based general DAQ/Analysis/Monte Carlo shell developed as part of the Proton Radiography project at LANL (Los Alamos National Laboratory). It has been adopted by experiments outside of the Proton Radiography project at Brookhaven National Laboratory (BNL) and at LANL. The program provides DAQ, Monte Carlo, and replay (disk file input) modes. Data can... View full abstract»

• ### Real-time diagnostic and performance monitoring in a DAQ environment

Publication Year: 1999, Page(s):239 - 242
| | PDF (323 KB)

This paper describes hardware architectures and software solutions for real-time performance monitoring in a data acquisition system. A specific hardware design allows a software package to fully characterise the timing of the data taking process with negligible overhead. The measured performances in a field application are presented. View full abstract»

• ### How to control the overhead in distributed real-time operating systems

Publication Year: 1999
| | PDF (44 KB)

Summary form only given. In this paper, we consider a scalable distributed-memory architecture for which we propose a problem representation that assigns real-time tasks on the processing units of the architecture to maximize deadline compliance rate. Based on the selected problem representation, we derive an algorithm that dynamically schedules real-time tasks on the processors of the distributed... View full abstract»

• ### VxWorks support for Collider Run II data acquisition at Fermilab

Publication Year: 1999
| | PDF (38 KB)

Summary form only given. Detector commissioning for Collider Run II at Fermilab is currently scheduled for April 2000. Substantial data acquisition upgrades are underway for both collider detectors (CDF and DZero), including the extensive use of PowerPC-based single board computers running the VxWorks real-time OS (a proprietary product of Wind River Systems). Support for VxWorks on these processo... View full abstract»

• ### The D0 level 3 trigger/data acquisition and its real time control

Publication Year: 1999
| | PDF (51 KB)

Summary form only given. The D0 experiment at the Fermilab Tevatron will use an upgraded data acquisition system to handle the higher trigger rates planned for the Collider Run 2. Individual blocks from VME digitizing crates flow to multiport memories associated with Level 3 farm nodes, which are generic Intel systems running Windows NT. New modules have been designed to enable the blocks to move ... View full abstract»

• ### Event building for the booster neutrino experiment

Publication Year: 1999
| | PDF (39 KB)

Summary form only given. A short baseline search for neutrino oscillations named BooNE has been approved for the Fermi National Accelerator Laboratory. The beam from the booster synchrotron will provide a pion source of muon type neutrinos, which will have an energy spectrum from 100 MeV to a few GeV. The neutrinos will be detected and their type identified in a mineral oil Cherenkov detector cons... View full abstract»

• ### Inter-processor data transfer via SCSI-2

Publication Year: 1999
Cited by:  Papers (3)
| | PDF (42 KB)

Summary form only given. The data acquisition system for the STAR experiment at the Brookhaven National Laboratory will readout data from several large detectors, and, following event building, data will be transmitted to a remote data storage facility. The architecture chosen requires data transmission from the STAR master VME crate to a Sun E450 which will control onward transmission via a 2 km ... View full abstract»

• ### A Linux-PC farm for online event reconstruction at HERA-B

Publication Year: 1999
| | PDF (48 KB)

Summary form only given. HERA-B's physics program is dedicated to study CP violation in decays of neutral B mesons. To allow for immediate data analysis and to avoid time-consuming re-processing of data, events will be reconstructed online in the last step of the four level DAQ and trigger system before being logged to tape. The online event reconstruction is performed on a PC farm. To process eve... View full abstract»

• ### The significance of the new Internet standards for collaboratories

Publication Year: 1999
| | PDF (51 KB)

Summary form only given. In order to successfully deploy a Collaboratory using upcoming Internet standards, new requirements are placed on interconnecting networks. The current best effort Internet is unsuitable for time critical and real time applications. This contribution shows an overview of several user cases. Related IETF work currently in progress is summarized. Special emphasis is given to... View full abstract»

• ### High performance message passing for the ATLAS DAQ/EF-1 project

Publication Year: 1999
| | PDF (38 KB)

Summary form only. A message passing library has been developed in the context of the ATLAS DAQ/EF-1 project. It is used for time critical applications within the front-end part of the DAQ system, mainly to exchange data control messages between I/O processors. Key objectives of the design were low message overheads, efficient use of the data transfer buses, provision of broadcast functionality an... View full abstract»

• ### An overview of the ATLAS trigger

Publication Year: 1999
| | PDF (47 KB)

Summary form only given. This paper gives an overview of the event selection for ATLAS, prior to event building, with the emphasis on the level-2 trigger. (A further stage of selection after event building is described in a separate presentation-ref Event Filter overview.) The level-1 trigger based on custom hardware processes coarse-grain data from the calorimeters and dedicated muon trigger cham... View full abstract»

• ### Status and first experiences with the HERA-B first level trigger

Publication Year: 1999
| | PDF (40 KB)

Summary form only given. With the HERA-B detector the collaboration of same name at DESY, Hamburg, Germany intends to measure CP violation from the B/sup 0/. B mesons are produced in collisions of 920 GeV protons with a fixed wire target. Since the signal to background ratio is about $10/sup -6/$, an extremely selective and efficient trigger system is needed. The first (FLT) of a four level trigge... View full abstract»

• ### The PHENIX Level-1 trigger system

Publication Year: 1999
Cited by:  Papers (1)
| | PDF (45 KB)

Summary form only given. The PHENIX detector at the Relativistic Heavy Ion Collider (RHIC) will study the dynamics of ultra-relativistic heavy ion collisions and search for exotic states of matter, most notably the Quark Gluon Plasma (QGP). Substantial event selectivity is needed at RHIC to enhance interesting events relative to more common ones and to satisfy the requirements of the data acquisit... View full abstract»

• ### Fast neural net based on Altera's FLEX for triggering

Publication Year: 1999
| | PDF (22 KB)

Summary form only given. The fast reconfigurable neural net for purpose of triggering and event selection in high energy physics experiments is presented. The net is realized on flexible logic element matrix (FLEX) of Altera Corp. The hardware and corresponding software are described. View full abstract»

• ### The LHCb level 1 vertex trigger

Publication Year: 1999
| | PDF (42 KB)

Summary form only given. The Level 1 Vertex trigger of LHCb has certain features that make it unique amongst the LHC experiment trigger schemes: The problem it addresses is a reduction factor of 25 for minimum bias events while retaining good efficiency for signal B events. The best way to achieve such reduction factors is to rely on the most striking property of those B events, the long decay tim... View full abstract»

• ### Implementation and cosmic ray test results of the Level 1 charged particle trigger for the BaBar detector

Publication Year: 1999
| | PDF (65 KB)

Summary form only given. The BaBar Level 1 trigger system consists of three main subsystems: the Drift Chamber Trigger, the Calorimeter Trigger and the Global Trigger. Information from the Drift Chamber and Calorimeter is processed by the respective triggers and the resulting data is sent to the Global Trigger. The algorithms of the Drift Chamber Trigger System are executed on three types of modul... View full abstract»

• ### List-mode data acquisition and analyzing software for Windows NT/98/95 plus high rate 2 and 3 dimensional histogramming for delay-line-detectors

Publication Year: 1999
Cited by:  Papers (1)
| | PDF (40 KB)

Summary form only given. We present a DAQ System for PC's running Windows NT/98/95. The software CoboldPC uses list mode data taking technique and can be programmed to operate nearly every DAQ hardware. User specific analysis code can be programmed. To use CAMAC we have developed a Camac Crate Controller (CCC) that communicates via a standard IO card with the PC. The CCC implements also a simple e... View full abstract»

• ### Conference attendees

Publication Year: 1999, Page(s):566 - 569
| PDF (309 KB)
• ### Gas inlet control system for the stellarator TJ-II

Publication Year: 1999, Page(s):243 - 245
Cited by:  Papers (1)
| | PDF (320 KB)

This paper describes the Gas Inlet Control System for the TJ-II Stellarator, which is currently in operation in Madrid (Spain). This system is an essential control element of the TJ-II, which has been commissioned, designed, and built to provide the appropriate values of gas density during the whole evolution of the experimental pulses. The gas is puffed using a set of 8 piezoelectric valves, whic... View full abstract»

• ### Real-time software for the wire per wire X-ray data acquisition system

Publication Year: 1999, Page(s):367 - 370
| | PDF (320 KB)

This paper presents the software developments associated with the design and construction of a fast wire per wire detector system that will be used for high-speed data collection of linear time-resolved X-ray diffraction spectra. As the overall hardware architecture of the system relies on the extensive use of a standard RISC based plug-in module, the code implementation of some critical parts of ... View full abstract»

• ### The event builder for STAR

Publication Year: 1999, Page(s):410 - 414
Cited by:  Papers (4)
| | PDF (388 KB)

STAR is a large multipurpose detector at the Relativistic Heavy Ion Collider (RHIC) at BNL which begins operation this year. The event builder (EVB) has to handle a throughput of 20 MB/s and event rates between 1-100 Hz. The EVB system is built using commercially available components running under VxWorks and Solaris. Implementation language for the system is C++. Connection to multiple data sourc... View full abstract»