LuAP(Ce) Scintillator Crystal

Lutetium Aluminium Perovskite (LuAP(Ce) - LuAlO3:Ce) scintillator crystals are relatively dense (8.34g/cm³), have a high Z (64.9) and have a fast decay time (18ns). With a peak emission of 365nm, LuAP(Ce) output is well matched to photodiodes avalanche photodiodes APDs and silicon photomultipliers (SiPMs). In addition these crystals have good temperature properties.

LuAP(Ce) scintillator crystals have:

Mechanically robust characteristics and are non-hygroscopic
Stable scintillating characteristics up to c.100 rad
Virtually no afterglow emissions
No cleavage planes, so can be easily machined into various shapes and geometries

LuAP(Ce) scintillator crystals have the following issues which should be noted. They:

Have a light emission which a is good part is above 500nm, a region where photomultipliers are less sensitive
Are intrinsically radioactive making it unacceptable for some applications
Are susceptible to radiation damage, starting with doses between 1 and 10 Gray (10⁸ - 10⁹ rad). Reversible with time or annealing.

LuAP(Ce) scintillator crystals are useful in diverse applications such as:

Positron Emission Tomography (PET)
Imaging screens
Specialist applications in high energy, nuclear, space and medical physics

LuAP(Ce) Scintillation Crystals - Optical Properties

Property	Units	Value
Wavelength (Max. Emission)	nm	365
Decay Times	ns	18
Radiation Length	cm	1.3

LuAP(Ce) Scintillation Crystals - Mechanical Properties

Property	Units	Value
Chemical Formula		LuAlO3:Ce
Density	g/cm³	8.34
Atomic Number (Effective)		64.9
Hardness	Mho	8.5

Sizes

Property	Value
Diameters	80 mm max.
Lengths	150 mm max.
Thin Sections - minimum thicknesses:	Free Standing: 0.2mm (Diameters <100mm), 0.1mm (Diameters <50mm) Ring - Edge Mounted: 0.05mm (Diameters <50mm), 0.02mm (Diameters <10mm) Substrate Mounted: 0.01mm (Diameters <40mm), 0.005mm (Diameters <30mm)