Radiation-Hard Quartz Cerenkov Calorimeters - The University of Iowa

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HF CalorimeterHF Test Beam Results• The beam line at the CERN H2 beam line for the HF calorimeter tests.• A single HF wedge, mounted on a table that could be moved remotely• horizontal and Vertical directions• tilted in the vertical plane up to 6 degrees with respect to the beam direction.• The electromagnetic energy resolution is dominated by photoelectron statistics.• a = 198%, b = 9%• The hadronic energy resolution is largely determined by the fluctuations in the neutral pionproduction in showers, a = 280% and b = 11%.CMS NOTE 2006/044THE UNIVERSITY OF IOWAY. Onel, CALOR2006, Chicago22
HF CalorimeterTest Beam Verification via Geant4 SimulationT.Yetkin, , Ph.D. Thesis, 2006Beam Sim. Geometry Sim. Physics Sim. AnalysisSpatially distributed(randomly to generate square,circle, spherical, etc.) orpoint-like beam spot. In HFbeam spot is square shape.pName,P,EBuild geometry as close aspossible to the real geometrywith same materials. In HFsimulation passive material isiron and active material isquartz...Electromagnetic andHadronic Physics Simulationwith the interface of PhysicsLists (matter-particleinteractions and showering).Cherenkov process is addedexternally for the energy lossof charged particles insidequartz fibers.ShowerconstructionNumber of photo-electronsare stored at the end ofsimulation. Towers areread out separately. ROOTis the package for analysisframework.~Gun Position....n 2n 1~Cerenkov ProcessHistogramsTHE UNIVERSITY OF IOWAY. Onel, CALOR2006, Chicago23
Page 1 and 2: Radiation-Hard Quartz CerenkovCalor
Page 3 and 4: Introduction• The detector is int
Page 7 and 8: Quartz Radiation DamageAttenuationA
Page 9 and 10: CMS DetectorBarrel Hadron (HB) Calo
Page 11 and 12: PPP - IROBox( Light Guides)R6425 PM
Page 13 and 14: PPP - ISpatial uniformity with elec
Page 15 and 16: PPP - IEnergy Response Linearity•
Page 17 and 18: CMS Forward DetectorsTHE UNIVERSITY
Page 19 and 20: HF CalorimeterHAD (143 cm)5mm• To
Page 21: HF CalorimeterHF in 186 ServicesTHE
Page 25 and 26: ElectronHF CalorimeterResponse of H
Page 27 and 28: HF CalorimeterResponse Linearity•
Page 29 and 30: CASTOR Calorimeter• Each set of t
Page 31 and 32: CASTOR Calorimeter(5.32 < η < 6.71
Page 33 and 34: HE Upgrade for SLHCCollecting Ceren
Page 35 and 36: HE Upgrade for SLHCSurface Uniformi
Page 37 and 38: HE Upgrade for SLHCThe Calorimeter
Page 39 and 40: Cerenkov CompensationPrecision Calo
Page 41 and 42: Backup SlidesTHE UNIVERSITY OF IOWA
Page 43: CMS CoverageTHE UNIVERSITY OF IOWAY

Radiation-Hard Quartz Cerenkov Calorimeters - The University of Iowa

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