Hi,
I wonder if using Mylar in the tape drive target geometry would be good for a high- rep soft x-ray application. Or if anyone recommend other materials to be used instead in the tape drive, and why?
Many thanks
Rad
Hi Mallick,
Many thanks for your answer. We are actually using a 15micron Mylar (C₁₀H₈O₄) as a carrier film that has fine magnetic powder of both Fe2O3 and chrome dioxide CrO2. It is delivering x-ray in the overlapping region between soft and hard x-rays. 3micron Mylar is good choice, but it is much less robust and prone to breakage. I guess this kind of thickness (3um) can be used in Proton acceleration?
Cheers,
Rad
Well, we are using this film for sample holder purpose while studing Proton induced X-ray emission or EDXRF of liquid sample. As mentioned in your paper related to soft X-ray microprobe, the special type proportional counter have 0.5 micrometer film. Kepton foil (8 micron) is a good choice for our proton accelerator experiment. We are using this film, Kepton foil is quite strong and radiation stability is high, you can search for the low thickness for your purpose
Yes. So in that work, the use of 0.5 micron was to get a good transmission (aroud 80%) of the source in the microfocus x-ray source MKI and Carbon disc of 277 eV K edge energy was used as target.
For the Kepton foil. Any idea what would the ideal required irradiance at the focus be to accelerate protons? We are thinking of using a chirped pulse amplification (CPA) arm.
Cheers,
Rad
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