XRay Shielding Fiber Optic Plate

Fiber Pitch:
4um / 6um / 12um 

Core/Clad Ratio:
70/30 and 80/20

Lead Free:
Yes

Cumlative Dose Tolerance (Optical Performance degrade 5~10%):
20000Gy

Numerical Aperture:
1.0

Thickness:
From 0.5mm and up 

Xray Absorption:
Yes

Phosphor Compaitable  :
Yes

  1. SZP 0Gy = Our Sample without Radiation Exposure

  2. SZP 200Gy = Our Sample after 200Gy Exposure (Cumlative)

  3. Ico 0Gy = Competitor’s Radiation HardGlass FOP sample without Radiation Exposure

  4. Ico 200Gy = Competitor’s Radiation HardGlass FOP sample with 200Gy Radiation Exposure

From the test, there’s no significant Transmission degrade after exposure of 200Gy. And there’s no color changes on the FOP surface.

*Testing Condition : 160 KeV + 1mA

The results of the X-ray damage to CCD may lead to below results:

• Increases in dark current
• Increases in flatband voltage

The first, dark current, affects the system operating temperature used
for the operations, whilst the second, changes to Vfb, can impact on the
CCDs ability to function correctly, particularly when transferring charge.

Ultimately, these effects combine to affect the lifetime of the CCDs in
any particular application, and impact on the working lifetime of the
detector. 

Using XRay Shielding FOP may help you extend the CMOS/CCD lifetime

Further reading:
Radiation Effects on CMOS Image Sensors due to X-Rays

Dark current generated in the image from Xray exposures and a plot showing the increase in dark current with increasing photon dose

Image showing flatband voltage changes in
addition to the dark current increase

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