Hitachi Metals, Ltd.

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 Hitachi Metals, we have developed high-density, highly functional ceramic scintillators.

(1) Supersensitivity/Low afterglow
(2) Hight uniform sensitivity
   The central part of the wafer and the edges offer a uniform sensitivity.

(3) Maximized X-ray absorption coefficient
   The X-ray absorption coefficient is large, which enables the miniaturization of the scintillator.

Material Code	Hitachi Metals' 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 Hitachi Metals)

1. Physical Properties

Density	7,280kg/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	7.8x10-5/°C (at R.T.~300°C)
Thermal conductivity index	9.4W/m·K (at R.T.)
Electricity conductivity index	5x10-13Ω-1·m (at R.T.)

2. Fluorescence Spectrum

Note: Please contact us directly with any questions pertaining to configuration and specifications.

1. X-ray CTs
2. All radiation detection devices

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