Where Can I Find Diodes for Line-Shaped Beams in Soft X-Ray Experiments?

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    Photodiode X-ray
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Discussion Overview

The discussion centers around finding suitable diodes for line-shaped beams in soft X-ray experiments, specifically looking for PIN or SDD diodes with a defined active area. The context includes technical specifications and previous experiences with similar detectors.

Discussion Character

  • Technical explanation, Debate/contested

Main Points Raised

  • One participant reports successful testing of the Moxtek XPIN-XT Detector, achieving an energy resolution better than 300eV at 8keV, and seeks manufacturers for diodes with a specific geometry.
  • Another participant suggests that the High Energy, Nuclear, Particle Physics forum may yield useful responses and questions the appropriateness of the energy range mentioned.
  • A later reply questions whether scintillators could serve as an alternative or if using multiple diodes might be a viable solution.
  • One participant expresses uncertainty about scintillators being a suitable alternative due to the required energy resolution and confirms that multiple diodes are being considered.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on the best approach for the diode selection, with multiple competing views regarding the use of scintillators and the feasibility of multiple diodes.

Contextual Notes

The discussion highlights the specific requirements for energy resolution and geometry, which may limit options and complicate the search for suitable diodes.

SAXSIST
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I have successfully tested my read-out & data acquisition electronics for the Moxtek XPIN-XT Detector. I cooled the PIN diode below -30°C and found an energy resolution better than 300eV (@8keV) up to 50k cts/sec.
Right now I am looking for diodes for line-shaped beams, i.e. about 14mm x 2 to 3mm active area. In the past there was a Si-PIN detector out (PF2400, also from Moxtek) which could be used for SAXS and XRD experiments, but is not longer available.
Can anyone help me to find a manufacturer of those PIN or SDD diodes with the above geometry?

Thanks
 
dlgoff said:
I'm not sure but you may get some good responses in the High Energy, Nuclear, Particle Physics forum. I'll report this post and see what the mentors think.
8 keV is not the typical high-energy range, but let's try.

Would scintillators be an alternative? Or multiple diodes?
 
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I am not sure if scintillators are an alternative, as we want to achieve an energy resolution of approx. 300eV (to separate Cu Ka from Kb). Multiple diodes are in considaration.