Abstract
Prototype modules for a multicell system of shower detectors, detectiong electrons or photons and measuring their energy, have been studied in the 0.25–10 GeV range. Each cell is made of a sandwich of thin layers of lead and scintillator, the produced light being extracted by acrylic rods or plates doped with a wavelength shifter (BBQ). Extensive tests led to a simple, low-cost and compact module using two extraction plates and allowing measurement of energy ( σ E ⋍ 9% E 1 2 ) and position ( σ⋍15 mm ) of the electromagnetic shower. A system of square cells seen by four converter plates is proposed for a CERN SPS experiment.
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More From: Nuclear Instruments and Methods In Physics Research
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