Abstract
The aim of this talk is to provide an introduction to calorimetry on which the following more specialized presentations can build. I shall be selective in the choice of Calorimeter Facilities; strictly speaking there are only two in existence at storage rings, MARK-J at PETRA and MAC at PEP, each having the distinction of including hadron calorimetry. The examples chosen will all be taken from the storage ring environment, where the conditions are quite different from those which prevail at fixed target facilities. The apparatus sits in the centre of mass, consequently the average energy of the particles is lower and they enter the calorimeters at large angles to the normal. Each example will be used to illustrate the basic principle of a method of calorimetry or readout.The outline of the talk is as follows:(1) What is a calorimeter?(2) Facilities MARK-J.JADE-lead glass.TASSO-liquid argon.MAC-proportional chamber readout.AFS (R807)-uranium and BBQ readout.UA2-BBQ readout.(3) UA1 (a) energy calibration,(b) low energy response,(c) the problems associated with attempts to cover 4π solid angle.(4) LEP physics and calorimetry.(5) Summary and conclusions.
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