I'm gathering data on the possible options for a window for alpha spectrometer. Mica and MPET are probably the most commonly used but I came across some plots that show that even a 30um thick aluminium foil could be used for 5keV onwards. Al-metalized PET (Mylar) of small thickness of ~2um (recommended) is much harder to find locally than metalized polypropylene. Unfortunately, I couldn't find a reasonable collection of transmission/absorption plots of different materials that could potentially be used as alternative windows for alpha detectors. Does anyone know where to look for such plots?
Many years ago we made alpha detectors using 150 mm diameter silicon slices. They had a thin oxide window. We were just detecting alphas but I see no reason why they couldn't be used for spectrometry
Sorry for slow reply we have been visiting family.
Yes, I agree.
Good luck in your research.
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