0000000001107604

AUTHOR

R. Ossa

showing 2 related works from this author

Operational experience with a large detector system using silicon strip detectors with double sided readout

1992

Abstract A large system of silicon strip detectors with double sided readout has been successfully commissioned over the course of the last year at the e + e − collider LEP. The readout of this 73 728 channel system is performed with custom designed VLSI charge sensitive amplifier chips (CAMEX64A). An overall point resolution of 12 μm on both sides has been acheived for the complete system. The most important difficulties during the run were beam losses into the detector, and a chemical agent deposited onto the electronics; however, the damage from these sources was understood and brought under control. This and other results of the 1991 data-taking run are described with special emphasis o…

Nuclear and High Energy PhysicsSiliconPhysics::Instrumentation and Detectorschemistry.chemical_element01 natural scienceslaw.inventionlaw0103 physical sciencesVLSI circuit[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]ElectronicsDetectors and Experimental Techniques010306 general physicsColliderInstrumentationPhysicsVery-large-scale integration010308 nuclear & particles physicsbusiness.industryDetectorEmphasis (telecommunications)Colliding beam acceleratorMicrostrip deviceAmplifiers (electronic)Semiconducting siliconchemistryOptoelectronicsLEP storage ringbusinessBeam (structure)Radiation detectorCommunication channelNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
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A large-area transition radiation detector

1990

Abstract The construction and the operation of a large-area transition radiation detector (TRD) for the NA31 experiment at CERN are described. The TRD incorporates several novel features for stabilizing the detector response. The density of the gas mixture (xenon+helium+methane) in the detection chambers is matched to the carbon dioxide gas in the surrounding radiators by tuning the helium concentration to avoid a hydrostatic pressure difference, which would deform the chamber walls. The chamber pressure is continuously regulated by computer control to maintain it to within 1 μbar of the radiator pressure. The gas gain of each of the four chambers is regulated to better than 0.2% by changin…

PhysicsNuclear and High Energy PhysicsPhysics::Instrumentation and Detectorsbusiness.industryHelium ionization detectorDetectorHydrostatic pressurechemistry.chemical_elementMethaneChamber pressureNuclear physicschemistry.chemical_compoundTransition radiation detectorXenonOpticschemistryDetectors and Experimental TechniquesbusinessInstrumentationHelium
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