R&D proposal to DRDC: fast EM calorimeter with excellent photon angular resolution and energy resolution using scintillating noble liquids

Recent test beam data have shown fast and large signals for LKr, mixed with >1% LXe. Excellent uniformity in LKr and LXe was achieved over a 37 cm long cell. CsI cathode works well inside LKr/LXe with O(1%) resolution at 5 MeV. Precision calibration in-situ has been demonstrated. Scintillating LK...

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Detalles Bibliográficos
Autores principales: Chen, M, Luckey, D, Sumorok, K, Zhang, X, Gaudreau, M P J, Akimov, D Y, Bolozdynya, A I, Churakov, D, Chernyshov, V, Koutchenkov, A, Kovalenko, A, Kuzichev, V F, Lamkov, V A, Lebedenko, V, Gusev, L, Safronov, G A, Sheinkman, V A, Smirnov, G, Krasnokutsky, R N, Shuvalov, R S, Fedyakin, N N, Sushkov, V V, Akopyan, M V, Gougas, Andreas, Pevsner, A
Lenguaje:eng
Publicado: 1993
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/292991
Descripción
Sumario:Recent test beam data have shown fast and large signals for LKr, mixed with >1% LXe. Excellent uniformity in LKr and LXe was achieved over a 37 cm long cell. CsI cathode works well inside LKr/LXe with O(1%) resolution at 5 MeV. Precision calibration in-situ has been demonstrated. Scintillating LKr/LXe detectors are sufficiently radiation hard for LHC environment. These new developments simplify the construction of prototype LKr calorimeter, to demonstrate the superior e/gamma energy resolution and the determination of photon direction using longitudinal and transverse segmentations, which are vital for the detection of the multi-photon states. The constant term in the energy resolution is small, the electronics noise is negligible due to the large signal size. The overall pion/electron suppression is expected to be better than 10-4.

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