NASA's new Artemis program involves building several temporary waypoints around and on the moon. One of the side-bonuses for scientists is that this has opened a few new funding avenues for studying the lunar surface and the space environment around it.
High energy cosmic ray particle detectors usually require very large collection areas for the highest energy particles (due to the low occurrence rates) and very large mass detectors for the lower energy particles. In fact, the mass and power of the detector is often a limiting factor as one needs a huge geometric factor (i.e., the optical "viewable" volume for each look direction of the detector) to get enough particle counts for any sensible data product. Thus, most particle instruments that are flown on spacecraft are limited to energies at or below ~1 GeV/nucleon (e.g., the PAMELA detector is one of the highest energy space-based detector of which I am aware).
With the Artemis program, the limitations on mass and power should be much less restrictive as the detector could be placed on the lunar surface and done so with an unobstructed view of the sky. The detector could be physically much larger and heavier as one would not need to worry about the moment of inertia of the spacecraft being dominated by a metal block on one side too.
All that said, are there any plans or proposals to put some really high energy (high energy for me is >1 GeV) particle detectors on the lunar surface as part of the Artemis program?
Side Note: I am aware that proposals for scientific instruments are currently in preparation or under review, so I am clearly not asking anyone to divulge any proprietary information etc. I am just curious if folks are working on some neat high energy particle detectors.