Search results for "RDW"

showing 10 items of 1401 documents

A code to calculate (high order) Bessel functions based on the continued fractions method

1993

Abstract We have developed a fast code to calculate Bessel functions of integer and fractional order based on the continued fractions method. This algorithm is specially useful in the case of Bessel functions of high order because it does not require any recalculation using normalization relations.

Normalization (statistics)symbols.namesakeComputer programHardware and ArchitectureComputingMethodologies_SYMBOLICANDALGEBRAICMANIPULATIONMathematical analysissymbolsCode (cryptography)General Physics and AstronomyHigh orderBessel functionMathematicsComputer Physics Communications
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High-Energy Electron-Induced SEUs and Jovian Environment Impact

2017

We present experimental evidence of electron-induced upsets in a reference European Space Agency (ESA) single event upset (SEU) monitor, induced by a 200-MeV electron beam at the Very energetic Electronic facility for Space Planetary Exploration in harsh Radiation environments facility at CERN. Comparison of experimental cross sections and simulated cross sections is shown and the differences are analyzed. Possible secondary contributions to the upset rate by neutrons, flash effects, and cumulative dose effects are discussed, showing that electronuclear reactions are the expected SEU mechanism. The ESA Jupiter Icy Moons Explorer mission, to be launched in 2022, presents a challenging radiat…

Nuclear and High Energy Physics02 engineering and technologyRadiationspace technologyelektronit01 natural sciencesUpsetJovianNuclear physicsJupitersymbols.namesakeradiation physics0103 physical sciences0202 electrical engineering electronic engineering information engineeringElectrical and Electronic EngineeringavaruustekniikkaPhysicsSpacecraftta114010308 nuclear & particles physicsbusiness.industryionising radiationionisoiva säteilyelectrons020202 computer hardware & architectureNuclear Energy and EngineeringsäteilyfysiikkaSingle event upsetVan Allen radiation beltPhysics::Space PhysicsElectromagnetic shieldingsymbolsAstrophysics::Earth and Planetary AstrophysicsAtomic physicsbusinessIEEE Transactions on Nuclear Science
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Management and Control of the Read Out Processors (tpps) of the Aleph Time Projection Chamber

1989

The readout of the Aleph time projection chamber (TPC) relies on a set of 72 time projection processors (TPPs), which are based on a Motorola 68020 microprocessor running a real-time operating system. The advanced processing capabilities of the TPPs allow them to perform in parallel a number of tasks, both during and outside of data acquisition, which are outlined. The management and control of such a large number of intelligent devices is presented. The discussion covers the hardware configuration of the TPPs; the software running the TPPs; their management, status, and control; exception handling and message logging; and the TPP monitoring tasks. >

Nuclear and High Energy PhysicsAlephTime projection chamberComputer sciencebusiness.industryException handlingElectrical engineeringlaw.inventionSet (abstract data type)MicroprocessorData acquisitionSoftwareNuclear Energy and EngineeringlawElectrical and Electronic EngineeringProjection (set theory)businessComputer hardware
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Multiple register synchronization with a high-speed serial link using the Aurora protocol

2013

In this work, the development and characterization of a multiple synchronous registers interface communicating with a high-speed serial link and using the Aurora protocol is presented. A detailed description of the developing process and the characterization methods and hardware test benches are also included. This interface will implement the slow control busses of the digitizer cards for the second generation of electronics for the Advanced GAmma Tracking Array (AGATA).

Nuclear and High Energy PhysicsComputer scienceSerial communicationFirmwarebusiness.industryInterface (computing)Process (computing)computer.software_genreSynchronizationNuclear Energy and EngineeringElectronic engineeringAGATAElectrical and Electronic EngineeringField-programmable gate arraybusinessProtocol (object-oriented programming)computerComputer hardware2012 18th IEEE-NPSS Real Time Conference
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The NA48 event-building PC farm

2003

The NA48 experiment at the CERN SPS aims to measure the parameter $\Re(\epsilon'/ \epsilon)$ of direct CP violation in the neutral kaon system with an accuracy of $2 \times 10^{-4}$. Based on the requirements of: \\\\ * high event rates (up to 10 kHz) with negligible dead time;\\ * support for a variety of detectors with very wide variation in the number of readout channels;\\ * data rates of up to 150 MByte/s sustained over the beam burst;\\ * level-3 filtering and remote data logging in the CERN computer center; \\\\ the collaboration has designed and built a modular pipelined data flow system with 40 MHz sampling rate. The architecture combines custom-designed components with commerciall…

Nuclear and High Energy PhysicsCost effectivenessComputer sciencebusiness.industryPentiumNA48 experimentDead timeTerabyteData flow diagramData acquisitionNuclear Energy and EngineeringData loggerDetectors and Experimental TechniquesElectrical and Electronic EngineeringbusinessComputer hardwareIEEE Transactions on Nuclear Science
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Conceptual design and infrastructure for the installation of the first AGATA sub-array at LNL

2011

WOS: 000295765100014

Nuclear and High Energy PhysicsDANTE Heavy-ion DetectorPhysics::Instrumentation and DetectorsHELENA multiplicity filter01 natural sciences7. Clean energyParticle detectorNuclear physicsPRISMA spectrometerConceptual design0103 physical sciences[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]Nuclear Experiment010306 general physicsGamma detectionInstrumentationTRACE SI detectorPhysicsSpectrometer010308 nuclear & particles physicsbusiness.industrySemiconductor detectorCologne plungerAGATAAGATADANTE heavy-ion-detectorbusinessComputer hardwareNuclear Instruments and Methods in Physics Research
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Methodologies for the Statistical Analysis of Memory Response to Radiation

2016

International audience; Methodologies are proposed for in-depth statistical analysis of Single Event Upset data. The motivation for using these methodologies is to obtain precise information on the intrinsic defects and weaknesses of the tested devices, and to gain insight on their failure mechanisms, at no additional cost. The case study is a 65 nm SRAM irradiated with neutrons, protons and heavy ions. This publication is an extended version of a previous study.

Nuclear and High Energy PhysicsEngineeringHardware_PERFORMANCEANDRELIABILITYRadiation[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciencesstatistical analysis0103 physical sciencesStatic testingElectronic engineeringmemory responseStatistical analysisSensitivity (control systems)Static random-access memoryElectrical and Electronic Engineeringstatic testCluster of bit-flipsdynamic test010302 applied physicsSingle event upset SEURandom access memoryta114ta213010308 nuclear & particles physicsbusiness.industrymultiple cell upset (MCU)säteilySRAMReliability engineeringradiationNuclear Energy and EngineeringSingle event upsetradiation effectsbusiness[MATH.MATH-NA]Mathematics [math]/Numerical Analysis [math.NA]Dynamic testing
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Development of the Optical Multiplexer Board Prototype for Data Acquisition in the TileCal System

2006

This paper describes the development of the optical multiplexer board (OMB), also known as PreROD board, for the TileCal readout system in the ATLAS experiment. The aim of this board is to overcome the problems that may arise in the integrity of data due to radiation effects. The solution adopted has been to add redundancy to data transmission and so two optical fibers with the same data come out from the detector front end boards. The OMB has to decide in real time which fiber, eventually, carries data with no errors switching it to the output link connected to the read out driver (ROD) motherboard where data processing takes place. Besides, the board may be also used as a data injector fo…

Nuclear and High Energy PhysicsEngineeringMotherboardFirmwarebusiness.industrycomputer.software_genreMultiplexerFront and back endsData acquisitionNuclear Energy and EngineeringCyclic redundancy checkRedundancy (engineering)Electronic engineeringElectrical and Electronic EngineeringbusinesscomputerComputer hardwareData transmissionIEEE Transactions on Nuclear Science
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From the Reference SEU Monitor to the Technology Demonstration Module On-Board PROBA-II

2008

The reference SEU Monitor system designed and presented in 2005 (R. H. SOslashrensen, F.-X. Guerre, and A. Roseng ldquoDesign, testing and calibration of a reference SEU monitor system,rdquo in Proc. RADECS, 2005, pp. B3-1-B3-7) has now been used by many researchers at many radiation test sites and has provided valuable calibration data in support of numerous projects. As some of these findings and results give new insight into improved inter-facility calibrations and provide additional inputs into ongoing SEE research, a few of the more interesting cases are presented. Furthermore the dasiadetector elementpsila, the Atmel AT60142F SRAM, now in a hybrid configuration, will form the key dete…

Nuclear and High Energy PhysicsEngineeringbusiness.industryDetectorOn boardRadiation testingNuclear Energy and EngineeringSingle event upsetCalibrationKey (cryptography)Electronic engineeringSatelliteStatic random-access memoryElectrical and Electronic EngineeringbusinessComputer hardwareIEEE Transactions on Nuclear Science
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Optical Link Card Design for the Phase II Upgrade of TileCal Experiment

2011

This paper presents the design of an optical link card developed in the frame of the R&D activities for the phase 2 upgrade of the TileCal experiment. This board, that is part of the evaluation of different technologies for the final choice in the next years, is designed as a mezzanine that can work independently or be plugged in the optical multiplexer board of the TileCal backend electronics. It includes two SNAP 12 optical connectors able to transmit and receive up to 75 Gb/s and one SFP optical connector for lower speeds and compatibility with existing hardware as the read out driver. All processing is done in a Stratix II GX field-programmable gate array (FPGA). Details are given on th…

Nuclear and High Energy PhysicsEngineeringbusiness.industryFirmwareOptical linkElectrical engineeringPower integritycomputer.software_genreMultiplexerUpgradeNuclear Energy and EngineeringGate arrayStratixElectrical and Electronic EngineeringbusinessField-programmable gate arraycomputerComputer hardwareIEEE Transactions on Nuclear Science
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