Thanks for the proposal, but I'm afraid that I don't have the expertise and suitable tools and environment for arranging&performing such an experiment. The usage of a tattoo-removal Nd:YAG pulsed laser (sourced from Chinese vendors on Ebay or elsewhere) is also an unproven way to cut costs; I don't have experience with them, although their main specifications seem ok.
For best results a vacuum chamber with at least a window for the laser beam is required, but a very deep vacuum is not. It might be possible to perform the same measurements in the atmosphere, but I think air molecules would brake the high-energy particles emitted from the target material.
Researchers or experimenters with small laboratories will likely already have most of the equipment and materials needed.
Regarding vacuum by the way, in the latest paper it's pointed out:
Silicon containing pump oils appear to destroy the surfaces needed for catalytic H(0) production by giving a silicon or silicon oxide layer on the surfaces used. This type of insulating contamination is well-known in mass spectrometry high-vacuum experiments and is difficult to remove. This contamination is one reason why silicone pump oils are often not recommended for use in mass spectrometry experiments. [...]