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| beta counter; ß-counter; beta counting assembly; β counting assembly; beta counter tube; β counter tube; beta scintillation counter (detector); ß scintillation counter (detector); ß counter | |||
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| beta counter; ß-counter; beta counting assembly; β counting assembly; beta counter tube; β counter tube; beta scintillation counter (detector); ß scintillation counter (detector); ß counter | |||