Title :
Equipment and methods for rapid analysis of PWO full-sized scintillation crystal radiation hardness during mass production
Author :
Drobychev, Gleb ; Annenkov, Alexander ; Fedorov, Andrei ; Korzhik, Mikhali ; Lecoq, Paul ; Lopatik, Andrei ; Missevitch, Oleg ; Peigneux, Jean-Pierre ; Singovski, Alexander ; Zouevski, Roman
Author_Institution :
Inst. for Nucl. Phys., Minsk, Byelorussia
fDate :
8/1/2001 12:00:00 AM
Abstract :
The mass production of lead tungstate crystals (PWO) for the Compact Muon Solenoid (CMS) Project at CERN began at the Bogoroditsk Techno-Chemical Plant (BTCP, Tula Region, Russia) in 2000. Mass production technology, developed in recent years, is based on a set of methods and instrumentation for crystal growth and machining, as well as quality control and certification of crystals. One of the most crucial categories of tolerances is the radiation hardness of crystals. Control of the PWO radiation hardness during the mass production phase requires a reliable, easy-to-use measuring tool with high productivity. A semiautomatic spectrometric setup for PWO radiation hardness monitoring was developed and tested at CERN. After final crosschecks, the setup was put into operation at BTCP
Keywords :
certification; gamma-ray effects; lead compounds; solid scintillation detectors; test facilities; CMS; Compact Muon Solenoid; PWO full-sized scintillation crystal radiation hardness; PbWO4; certification; crystal growth; lead tungstate crystals; quality control; semiautomatic spectrometric setup; Certification; Collision mitigation; Crystals; Instruments; Machining; Mass production; Mesons; Quality control; Solenoids; Weight control;
Journal_Title :
Nuclear Science, IEEE Transactions on
