CERN Accelerating science

Scientific Committee Paper
Report number	CERN-DRDC-93-9 ; DRDC-P-47
Title	R&D proposal to DRDC : fast EM calorimeter with excellent photon angular resolution and energy resolution using scintillating noble liquids
Author(s)	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
Corporate author(s)	CERN. Geneva. Detector Research and Development Committee
Submitted by	1993
Subject category	Detectors and Experimental Techniques
Abstract	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.
Copyright/License	© CERN (License: CC-BY-4.0)

Corresponding record in: Inspire