LYSO from PROTEUS

excellence in inorganic scintillators

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 ray which is generated by backword compton effect at SPring8

inscribed hexagon shape to 80.0mm dia circle, 40.0mm -//- 69.3mm -//- 40.0mm face, 60.0mm long


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