# Performance of an endcap prototype of the Atlas accordion electromagnetic calorimeter

Abstract : The design and construction of a lead-liquid argon endcap calorimeter prototype using an accordion geometry and conceived as a sector of the inner wheel of the endcap calorimeter of the future ATLAS experiment at the LHC is described. The performance obtained using electron beam data is presented. The main results are an energy resolution with a sampling term below $11\%/\sqrt{E(\rm GeV)}$ and a small local constant term, a good linearity of the response with the incident energy and a global constant term of 0.8\% over an extended area in the rapidity range of $2.2\eta 2.9$. These properties make the design suitable for the ATLAS electromagnetic endcap calorimeter.
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Submitted on : Friday, March 12, 1999 - 3:33:43 PM
Last modification on : Wednesday, August 24, 2022 - 2:46:52 PM
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### Citation

D.M. Gingrich, J L. Pinfold, E. Boos, B O. Zhautykov, B. Aubert, et al.. Performance of an endcap prototype of the Atlas accordion electromagnetic calorimeter. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 1997, 389, pp.398-408. ⟨10.1016/S0168-9002(97)00328-8⟩. ⟨in2p3-00005090⟩

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