[en] One achievement during the past year was the development of cryogenic techniques to allow samples to be γ irradiated at 40K and then transferred to the EPR spectrometer for subsequent observations at 10 to 150K and above. The adduct methyl radical in γ-irradiated dimethyl sulfoxide-h6 was detected by this means. A study of d-atom abstraction by trapped H and D atoms in 3-methylpenetane-d14 at temperatures below 500K was completed. Abstracts of reports published during the year are included