A Tungsten / Scintillating Fiber Electromagnetic Calorimeter Prototype for a High-Rate Muon g-2 Experiment

(2) Department of Physics; B. Kiburg (1); Boston University); D. M. Webber (1); D. W. Hertzog (1); E. Thorsland (1); J. Blackburn (1); J. D. Crnkovic (1); J. Kunkle (1); K. R. Lynch (2) ((1) Department of Physics

arxiv: 0910.0818 · v1 · submitted 2009-10-05 · ⚛️ physics.ins-det

A Tungsten / Scintillating Fiber Electromagnetic Calorimeter Prototype for a High-Rate Muon g-2 Experiment

R. McNabb (1) , J. Blackburn (1) , J. D. Crnkovic (1) , D. W. Hertzog (1) , B. Kiburg (1) , J. Kunkle (1) , E. Thorsland (1) , D. M. Webber (1)

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K. R. Lynch (2) ((1) Department of Physics University of Illinois at Urbana-Champaign (2) Department of Physics Boston University)

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classification ⚛️ physics.ins-det

keywords calorimeterelectromagneticexperimentfiberhigh-ratemuonprocedureprototype

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A compact and fast electromagnetic calorimeter prototype was designed, built, and tested in preparation for a next-generation, high-rate muon g-2 experiment. It uses a simple assembly procedure: alternating layers of 0.5-mm-thick tungsten plates and 0.5-mm-diameter plastic scintillating fiber ribbons. This geometry leads to a detector having a calculated radiation length of 0.69 cm, a Moliere radius of 1.73 cm, and a measured intrinsic sampling resolution term of (11.8\pm1.1)/\sqrt{E(GeV)}, in the range 1.5 to 3.5 GeV. The construction procedure, test beam results, and GEANT-4 comparative simulations are described.

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A Tungsten / Scintillating Fiber Electromagnetic Calorimeter Prototype for a High-Rate Muon g-2 Experiment

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