High-energy proton induced damage in PbWO4 calorimeter crystals
نویسندگان
چکیده
منابع مشابه
High-energy proton induced damage in PbWO4 calorimeter crystals
Eight production quality PbWO4 crystals of CMS have been irradiated in a 20 GeV/c proton beam up to fluences of 5.4×1013 cm. The damage recovery in these crystals has been followed for over a year. Comparative irradiations with Co photons have been performed on seven other crystals using a dose rate of 1 kGy/h. In proton irradiated crystals the light transmission band-edge shifts and the induce...
متن کاملComparison between high-energy proton and charged pion induced damage in PbWO4 calorimeter crystals
A PbWO4 crystal produced for the electromagnetic calorimeter of the CMS experiment at the LHC was cut into three equal-length sections. The central one was irradiated with 290 MeV/c positive pions up to a fluence of (5.67± 0.46)× 10 cm, while the other two were exposed to a 24 GeV/c proton fluence of (1.17 ± 0.11) × 10 cm. The damage recovery in these crystals, stored in the dark at room temper...
متن کاملHigh-energy proton induced damage study of scintillation light output from PbWO4 calorimeter crystals
Eight PbWO4 crystals produced for the electromagnetic calorimeter of the CMS experiment at LHC have been irradiated in a 20 GeV/c proton beam up to fluences of 5.4 × 10 p/cm. The damage recovery in these crystals, stored in the dark at room temperature, has been followed for over a year. Comparative irradiations with Co photons have been performed on seven other crystals using a dose rate of 1 ...
متن کاملFirst results on radiation damage in PbWO4 crystals exposed to a 20 GeV/c proton beam
We have exposed seven full length production quality crystals of the electromagnetic calorimeter (ECAL) of the CMS detector to a 20 GeV/c proton beam at the CERN PS accelerator. The exposure was done at fluxes of 10 p/cm/h and 10 p/cm/h and integral fluences of 10 p/cm and 10 p/cm were reached at both rates. The light transmission of the crystals was measured after irradiation and suitable cool...
متن کاملRadiation hardness qualification of PbWO4 scintillation crystals for the CMS Electromagnetic Calorimeter
Ensuring the radiation hardness of PbWO4 crystals was one of the main priorities during the construction of the electromagnetic calorimeter of the CMS experiment at CERN. The production on an industrial scale of radiation hard crystals and their certification over a period of several years represented a difficult challenge both for CMS and for the crystal suppliers. The present article reviews ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
سال: 2005
ISSN: 0168-9002
DOI: 10.1016/j.nima.2005.01.304