| CERAMIC
SCINTILLATOR |
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| Overview |
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.
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| Features
of Hitachi Metals' Ceramic Scintillator |
| (1) Supersensitivity/Low afterglow |
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(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. |
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| A
Comparison between Hitachi Metals' Ceramic Scintillators and
Other Materials |
| 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 ( sec) |
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) |
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| Hitachi
Metals' Ceramic Scintillator Information |
| 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)
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| Thermal conductivity
index |
9.4W/m·K (at
R.T.) |
| Electricity conductivity
index |
5x10-13 -1·m
(at R.T.) |
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| 2. Fluorescence Spectrum |
Note: Please contact us directly with any questions pertaining
to configuration and specifications. |
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| Uses |
- X-ray CTs
- All radiation detection devices
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| Inquiries |
Information System Components Company
Tel.: +81-3-5765-4438
Inquiry Form |
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