Measurements of Lead Tungstate crystals behaviour under irradiation for the CMS electromagnetic calorimeter at the LHC
نویسنده
چکیده
Lead Tungstate crystals will be used as calorimetric medium in high energy physics at CERN, in a particularly hostile radiation environment. Methods of testing their behaviour under irradiation are discussed here and are illustrated by some R&D results. Presented at 5th European Conference on Radiation and its Effects on Components and Systems, (Fontevraud, France, September 1999) For the CMS Collaboration
منابع مشابه
Measurements of PbWO4 crystals behaviour under irradiation
Lead Tungstate crystals for the CMS detector at LHC have to withstand severe levels of radiation. Presented here are measurement techniques and results on crystal behaviour under gamma irradiation from tests at ETH/PSI in conditions similar to what is expected during operation of the CMS electromagnetic calorimeter. Presented at International Workshop on Lead Tungstate crystals, Rome, Italy, Oc...
متن کاملThe CMS electromagnetic calorimeter Overview and status report
An overview status is given of the Lead Tungstate electromagnetic calorimeter which is being developped for the CMS detector at LHC. This includes the development status of PbWO4 crystals, the mechanical design of the calorimeter, the read-out and a brief look into results from test measurements in particle beams. Presented at the “5th International Conference on Advanced Technology and Particl...
متن کاملThe CMS Lead Tungstate Electromagnetic Calorimeter
The CERN LHC will open a new regime in the exploration of fundamental interactions. Of central importance to these studies will be the precise measurement of high energy electrons and photons. The CMS experiment therefore incorporates a high resolution electromagnetic calorimeter comprising 76000 lead tungstate crystals, covering almost 4pi, and capable of operating reliably for ten years in a ...
متن کاملSpecifications for Lead Tungstate Crystals Preproduction
After 3 years of extensive R&D the Bogoroditsk Techno-Chemical Plant in Russia is ready to enter a preproduction phase where 6000 Lead Tungstate crystals will be produced for the CMS electromagnetic calorimeter during a period of about 18 months. Although this is a demonstration test for the mass production, these crystals will have to be installed in the calorimeter and have therefore to compl...
متن کاملBeam tests of lead tungstate crystal matrices and a silicon strip preshower detector for the CMS electromagnetic calorimeter
Further tests of lead tungstate crystal matrices made in high energy electron beams in 1996, using new crystals, new APDs and an improved test setup confirm that an energy resolution of better than 0.6% at 100 GeV can be obtained when the longitudinal uniformity of the struck crystal is adequate. Light loss measurements under low dose irradiation are reported. It is shown that there is no loss ...
متن کامل