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Buerger, J.; Harder, U.; Henschel, H.; Kaufmann, H.H.; Klein, M.; Kostka, P.; Lange, W.; Lippold, H.; Meissner, J.; Naumann, T.; Winde, M.; Wulff, N.
Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany). Inst. fuer Hochenergiephysik; H1 Collaboration1993
Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany). Inst. fuer Hochenergiephysik; H1 Collaboration1993
AbstractAbstract
[en] We describe a proposal to upgrade the existing H1 tracking detector by a semiconductor backward tracking telescope consisting of 8 beam concentric discs to measure the gluon and quark distribution functions at very low Bjorken x. Each disc comprises 3 planes of strip and pad Silicon detectors made of 4' wafers in order to determine the polar angle, the transverse momentum and to trigger on deep inelastically scattered electrons. The paper details the simulation work and the layout constraints on the semiconductors and it reviews the technical and electronics design of the trigger which has to cope with very high beam background rates and the HERA bunch crossing rate of 10.4 MHz. A first phase of the project was approved by the H1 collaboration and will be operational in 1994. (orig.)
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Jan 1993; 8 p; Available from FIZ Karlsruhe
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Report
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BACKGROUND RADIATION, BEAM BUNCHING, BEAM-BEAM INTERACTIONS, COLLIDING BEAMS, DEEP INELASTIC SCATTERING, DISTRIBUTION FUNCTIONS, EFFICIENCY, ELECTRON BEAMS, ELECTRON DETECTION, ELECTRON-PROTON INTERACTIONS, ELECTRONS, GEV RANGE 100-1000, HERA STORAGE RING, MECHANICAL STRUCTURES, PARTICLE STRUCTURE, PARTICLE TRACKS, POSITION SENSITIVE DETECTORS, PROTON BEAMS, QUASI-ELASTIC SCATTERING, SI SEMICONDUCTOR DETECTORS, TELESCOPE COUNTERS, TRIGGER CIRCUITS
BEAM DYNAMICS, BEAMS, CHARGED PARTICLE DETECTION, DETECTION, DYNAMICS, ELECTRONIC CIRCUITS, ELECTRON-NUCLEON INTERACTIONS, ELEMENTARY PARTICLES, ENERGY RANGE, FERMIONS, GEV RANGE, INELASTIC SCATTERING, INTERACTIONS, LEPTON BEAMS, LEPTON-BARYON INTERACTIONS, LEPTON-HADRON INTERACTIONS, LEPTON-NUCLEON INTERACTIONS, LEPTONS, MEASURING INSTRUMENTS, MECHANICS, NUCLEAR REACTIONS, NUCLEON BEAMS, PARTICLE BEAMS, PARTICLE INTERACTIONS, PULSE CIRCUITS, RADIATION DETECTION, RADIATION DETECTORS, RADIATIONS, SCATTERING, SEMICONDUCTOR DETECTORS, STORAGE RINGS
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