High-energy proton induced damage study of scintillation light output from PbWO4 calorimeter crystals
P. Lecomte, D. Luckey, F. Nessi-Tedaldi, F. Pauss
Abstract
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 E13 p/cm2. The damage recovery in these crystals, stored in the dark at room temperature, has been followed for over a year. Comparative irradiations with 60Co photons have been performed on seven other crystals using a dose rate of 1 kGy/h. The issue whether hadrons cause a specific damage to the scintillation mechanism has been studied through light output measurements on the irradiated crystals using cosmic rays. The correlation between light output changes and light transmission changes is measured to be the same for proton-irradiated crystals and for gamma-irradiated crystals. Thus, within the precision of the measurements and for the explored range of proton fluences, no additional, hadron-specific damage to the scintillation mechanism is observed.
Create a lesson
Related papers
Design and performance of the Fast Beam Condition Monitor for luminosity and background measurement at the CMS Experiment in LHC Run 3
The CMS BRIL Collaboration, Eliana Acurio, Ying An et al.
AlGaN/GaN Hall-Effect Sensor for In-Situ Magnetic Field Monitoring of the HSX Stellarator
Yiming Zhao, Wayne Goodman, Thomas Gallenberger et al.
Measuring and Modelling Lag in Amorphous Silicon Flat-Panel X-ray Detectors
Yiyue Huang, Benjamin Young, Andrew Kingston et al.
Signal formation and induction-gap optimization in a THGEM coupled to a resistive plate anode
Arpan Maity, Luca Moleri, Maryna Borysova et al.
Development and Commissioning of the Cryogenic Target Detectors for the Technical Run of the NUCLEUS Experiment
N. Schermer, H. Abele, G. Angloher et al.
Aliased noise characterization and mitigation in BICEP Array 150, 220 and 270 GHz time-division multiplexed detectors
S. Fatigoni, P. A. R. Ade, Z. Ahmed et al.