放射線硬化光ファイバープレート(rhFOP)
放射線硬化光ファイバープレート(rhFOP)
受取状況を読み込めませんでした
- 放射線によるダメージからセンサーを保護する
- X線による褐色化(長期使用後の褐色化)に対する耐性
- 蛍光体から発生する散乱光を吸収する
rhFOP は、X 線エネルギーを吸収できる材料で作られています。これにより、蛍光体 (シンチレータ) からの過剰な X 線漏れからセンサーが保護されます。これにより、センサーの寿命が延び、システムの SNR も向上します。
*rhFOPはデフォルトでセリウムが添加されている

Specifications
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Single Fiber diameter
Smaller fiber size means higher resolution. (2.5um = 218lp/mm , 6um = 114um )
- 2.5um
- 3um
- 4um
- 6um
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Maximum Size (Diagonal)
Production cost will increase sharply once diagonal surpass 130mm. If you need a bigger size, please contact us.
- Max. size Φ200mm
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Thickness
With a larger size of FOP, the minimum thickness required will also go up in order to maintain the structure. Usually thickness will go around 1mm - 3mm.
- Minimum 0.2mm
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EMA Absorber
EMA are special fibers insert in-between the standard fibers. They are using to absorb stray light between fibers. But at a cost of lowering the overall transmission.
- Interstitial EMA (Left)
- Without EMA (Right)
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Numerical Aperture
Numerical Aperture are decided by the material using to produce the FOP.
- NA = 1.0
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X-ray Shielding Ability
Thickness: 1.2mm, X-Ray Power 140KVp.
- 93%
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Phosphor Compatible
- Yes
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Materials
We have 2 types material for making rhFOP.
Lead Free and With Lead. Performance are different.
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Using FOP with Scintillator
CsI(Tl) has a primarily columnar crystal structure as seen in Figure below) and, depending on the conditions, approximately 83% is reflected within the columnar crystal.
For this reason, light is guided into the crystal wall and a certain fraction is guided into the photodiode direction. These are referred to asstructured scintillators. CsI (Tl) scintillator can be deposited on substrates such as glass, which is then flipped and adhered to the photodiode. It can also be deposited directly on the photodiode or deposited on the fiber optic plate.
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Phosphor Scattering
While light travelling within the phosphor, the light will spread—the amount of diffusion being proportional to the path length required to escape the phosphor. X rays interacting close to the photodetector give rise to a sharper (less blurred) optical signal than those which interact more distantly. The paths of most optical quanta will be shortest if the photodetector is placed on the x-ray entrance side of the phosphor.
Fiber optic plate can and directly coupling to CCD/CMOS and absorb scattering light that may blur the image. Which will improve the SNR of the system.