Cherenkov probes and runaway electrons diagnosticsR. Kwiatkowski, M. Rabinski, M. J. Sadowski, J. Zebrowski, P. Karpinski, COMPASS and TCVEur. Phys. J. Plus, 136 10 (2021) 1070DOI: https://doi.org/10.1140/epjp/s13360-021-01844-8