Cerium Doped LSO/LYSO Crystal Development for future High Energy Physics Experiments

Technical Report · Sun Mar 25 00:00:00 EDT 2012

DOI:https://doi.org/10.2172/1036961· OSTI ID:1036961

Zhu, Ren-Yuan

Because of their high stopping power and fast and bright scintillation, cerium doped LSO and LYSO crystals have attracted a broad interest in the physics community pursuing precision electromagnetic calorimeter for future high energy physics experiments. Their excellent radiation hardness against gamma-rays, neutrons and charged hadrons also makes them a preferred material for calorimeters to be operated in a severe radiation environment, such as the HL-LHC. An effort was made at SIPAT to grow 25 X{sub 0} (28 cm) long LYSO crystals for high energy physics applications. In this paper, the optical and scintillation properties and its radiation hardness against gamma-ray irradiations up to 1 Mrad are presented for the first 2.5 X 2.5 X 28 cm LYSO sample. An absorption band was found at the seed end of this sample and three other 20 cm long samples, which was traced back to a bad seed crystal used in the corresponding crystal growth process. Significant progresses in optical and scintillation properties were achieved for large size LYSO crystals after eliminating this absorption band.

• Research Organization: California Institute of Technology (CalTech), Pasadena, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• DOE Contract Number: FG02-06ER41427
• OSTI ID: 1036961
• Report Number(s): DOE/ER/41427-FINAL; TRN: US201208%%871
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ABSORPTION
ACCURACY
CALORIMETERS
CERIUM
CRYSTAL GROWTH
HADRONS
HARDNESS
HIGH ENERGY PHYSICS
NEUTRONS
PHYSICS
RADIATIONS
SCINTILLATIONS
SEEDS
STOPPING POWER
Crystal
Scintillator
Calorimeter
Lutetium Oxyorthosilicate
Lutetium Yttrium Oxyorthosilicate
Transmission
Photo-Luminescence
Light Output
Radiation Damage