Absorption of 5.47 MeV alpha particles by membrane filter material.
D000398:Air Pollution, Radioactive / Q000032:analysis*; D000512:Alpha Particles; D001729:Bismuth / Q000032:analysis*; D007854:Lead / Q000032:analysis*; D008851:Micropore Filters; D011059:Polonium / Q000032:analysis*; D011868:Radioisotopes / Q000032:analysis*
D011868:Radioisotopes; D007854:Lead; D011059:Polonium; D001729:Bismuth