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.
Features of Hitachi Metals' Ceramic Scintillator
(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.
A Comparison between Hitachi Metals' Ceramic Scintillators and Other Materials
|Material Code||Hitachi Metals' Material||Other Materials|
|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)|
Hitachi Metals' Ceramic Scintillator Information
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.)
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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