[Simple method for the breakage examination of 226Ra sealed sources by liquid scintillation counter].
D000398:Air Pollution, Radioactive / Q000032:analysis*; D011851:Radioactivity; D011883:Radium / Q000032:analysis*; D012588:Scintillation Counting / Q000295:instrumentation / Q000379:methods*
D011883:Radium