ESR and TSL study of hole capture in PbWO4 : Mo,La and PbWO4 : Mo,Y scintillator crystals
نویسندگان
چکیده
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 کاملHigh-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 کاملELECTRONIC BAND STRUCTURE AND SPECTROSCOPY OF PbWO4
Lead tungstate (PbWO4) crystallizes in the scheelite (CaWO4) structure, is transparent (Eg ≈ 4.2 eV), and has a broad intrinsic luminescence band at 420 nm. The high atomic numbers, high density, short electron and γ-ray stopping range, radiation hardness, and short lifetime of its intrinsic luminescence at room temperature (~10ns), have resulted in the selection of PbWO4 as the scintillator fo...
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 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...
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ژورنال
عنوان ژورنال: Journal of Physics D: Applied Physics
سال: 2013
ISSN: 0022-3727,1361-6463
DOI: 10.1088/0022-3727/46/7/075302