Ceramic Scintillator

A scintillator is a substance that absorbs rays, such as X rays and gamma rays, and makes; them visible to the human eye. Scintillators are used primarily in X-ray computer tomography (CT) and other medical equipment, analytical devices, gamma radiation in nondestructive inspection equipment and devices for detecting radiation leaks. At Proterial, we have developed high-density, highly functional ceramic scintillators.

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Features of Proterial's Ceramic Scintillator

1Supersensitivity/Low afterglow
2Hight uniform sensitivity The central part of the wafer and the edges offer a uniform sensitivity.
3Maximized X-ray absorption coefficient The X-ray absorption coefficient is large, which enables the miniaturization of the scintillator.

A Comparison between Proterial's Ceramic Scintillators and Other Materials

Material Code	Proterial's Material		Other Materials
Item	LS-1	LS-3	CdW04	CsI(Tl)
Width (mm)	1.1		2.0	2.0
Fluorescent spectram (nm)	512	512	460	510
Optical transmittance (% at peak wave length)	29~31		69	89
Sensitivity (CWO ratio)	1.9	2.1	1.0	1.8
X-ray transmittance ratio (% at 120kV)	2~3	2~3	0.8	1.6
Damping time variable (μsec)	3	3	5	-
Afterglow (% at 300msec)	0.001	0.001	0.0002	0.0850
Applications	Medical and industrial X-rays, CT detection devices, etc.	Medical and industrial X-rays, CT detection devices, etc.	(Measurements and comparisons made by Proterial)

Proterial's Ceramic Scintillator Information

1Physical Properties

Density	7280kg/m³
X-ray absorption coefficient	6800m^-1(at 60KeV)
Refraction index	2.2(at 512nm)
Hardness of micropickers	4,900MPa (Weight load 0.1Kg)
Line expansion coefficient	7.8×10^-5/℃(at R.T.~300℃)
Thermal conductivity index	9.4W/m・K(at R.T.)
Electricity conductivity index	5×10^-13Ω^-1・m(at R.T.)