Equipment and methods for rapid analysis of PWO full-sized scintillation crystal radiation hardness during mass production

The mass production of lead tungstate crystals (PWO) for the Compact Muon S olenoid (CMS) Project at CERN began at the Bogoroditsk Techno-Chemical Plan t (BTCP, Tula Region, Russia) in 2000. Mass production technology, develope d in recent years, is based on a set of methods and instrumentation for cry stal 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 mas s production phase requires a reliable, easy-to-use measuring tool with hig h productivity. A semiautomatic spectrometric setup for PWO radiation hardn ess monitoring was developed and tested at CERN. After final crosschecks, t he setup was put into operation at BTCP.