Does someone know how to filtrate IR scattered laser photons that is combined with soft x-ray emitting from a tape target in a laser plasma source without killing the signal of the x-ray?
Radhwan, I don't think it can be performed completely without some undesirable effect on the X-ray (say, affecting their flux, or blocking part of the soft X-ray spectrum). All the usual tricks of controlling IR beams can be tried, and some will help you more than others (hard to answer more precisely without knowing more specific energy ranges).
Hi Abdel,
Thank you for your answer. My source is a Mylar tape cocked by IR laser of different intensities. I've actually tried Mylar of a few microns thickness and splashed Aluminium on it which helped to attenuate the IR through the filter on the diode. Even tried to baffle the diode signal to avoid IR photons that bounces around inside my chamber. The difficulty is in the soft x-ray generated that seems to be combined with some IR photons reflected from the surface.
Hi Radhwan,
I see more of your problem now. One suggestion - there is a group at PSI in Switzerland, which has developed something I wanted to, but never managed to find time/funding - a combinatorial spectroscopy (say, you do soft X-rays or EUV, but you are aware of all kinds of parasitic signals, mid-UV, IR, hard X-ray etc.), which I think is th work partly motivated by the need to actually account (i.e. quantify) for the kinds of problems you mention. I know this is not much, but I hope it helps.
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