Fig. 18

SEM image (~ 500×) of a M2-Pu mock-up before (BC) and after (AC) cleaning with CO2-snow indicates less surface soiling than before cleaning, but also widening of a crevice in the paint
SEM image (~ 500×) of a M2-Pu mock-up before (BC) and after (AC) cleaning with CO2-snow indicates less surface soiling than before cleaning, but also widening of a crevice in the paint