LYSO from PROTEUS
excellence in inorganic scintillators to Proteus index
LYSO YSO YAP BGO CdI:Tl LSO:Ce PWO LiI:Eu organics
LYSO:Ce    Lutetium-Yttrium OxyorthoSilicate, Ce+3 doped
LYSO  crystals & assemblies 
LYSO has fast timing property, high Z number, used for PET detector arrays, also suitable to high energy physics study

Left photo shows the example of LYSO ingot and right shows the element exmaple for PET detector array
  physical and scintillation properties of LYSO:Ce
  specific gravity 7.2   effective Z# 65
  peak wavelength 420nm   decay constant 42 (+/-5) nSec
  reflactive index ( @420nm ) 1.82   light yield ( photons/MeV ) ~25,000
  melting point 2,100 °C   cleavage plane none
  hygroscopicity none   Light output  ( NaI(Tl)=100% ) 73% ~ 75%

LYSO is also used for high-energy physics research
below photos show large size LYSO crystal examples used for backword compton high energy gamma ray
    50mm (dia) x 90mm (long) cylindrical LYSO
    used for high energy gamma ray detection 		    hexagonal LYSO for high energy gamma
    generated SPring8 backword compton
  
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PROTEUS, Inc. G-tech TopPage
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