Abstract
A report is given of the experimental studies on lead/fibre calorimetry of the RD1 research and development project. To match the LHC physics requirements for a highly segmented and accurate electromagnetic energy measurement and for an acceptable hadronic performance, the 1992 RD1 program opted for longitudinally segmented calorimeter prototypes. The electromagnetic prototypes comprised 4 × 4 cm 2 cells with a high sampling fraction of 1.8:1. Coarse hadronic prototypes were constructed using 1 mm fibres inserted in 3 mm diameter plastic tubes. The production procedures are discussed and test beam results are presented. Reports are also given on calibration studies, on radiation hardness studies and on the development and tests of new light detectors.
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