A visualization of the damage in Lead Tungstate calorimeter crystals after exposure to high-energy hadrons
arXiv:1202.0403 · doi:10.1016/j.nima.2012.04.069
Abstract
The anticipated performance of calorimeter crystals in the environment expected after the planned High-Luminosity upgrade of the Large Hadron Collider (HL-LHC) at CERN has to be well understood, before informed decisions can be made on the need for detector upgrades. Throughout the years of running at the HL-LHC, the detectors will be exposed to considerable fluences of fast hadrons, that have been shown to cause cumulative transparency losses in Lead Tungstate scintillating crystals. In this study, we present direct evidence of the main underlying damage mechanism. Results are shown from a test that yields a direct insight into the nature of the hadron-specific damage in Lead Tungstate calorimeter crystals exposed to 24 GeV/c protons.
8 pages, 6 figures
References in corpus (4)
- Performance and Operation of the CMS Electromagnetic Calorimeter
- A study of high-energy proton induced damage in Cerium Fluoride in comparison with measurements in Lead Tungstate calorimeter crystals
- High-energy proton induced damage study of scintillation light output from PbWO4 calorimeter crystals
- Comparison between high-energy proton and charged pion induced damage in Lead Tungstate calorimeter crystals
Cited by in corpus (4)
- Results on damage induced by high-energy protons in LYSO calorimeter crystals
- Cerium-Doped Fused-Silica Fibers as Wavelength Shifters
- A FLUKA study towards predicting hadron-specific damage due to high-energy hadrons in inorganic crystals for calorimetry
- Predicting hadron-specific damage from fast hadrons in crystals for calorimetry