Radiocarbon · 1974 · 18 citations · 1 references
EngineeringChemistryNuclear InstrumentationRadiation DetectionRadiation MeasurementBackground Radiation MeasurementDetector SystemsDetector TechnologyRadiation DetectorsRadioactive DecayScintillation DetectorsDetector ConstructionGeiger-mueller CountersGeiger-muller CountersGeiger-müller CountersScintillation
The following list includes samples dated in 1973. Benzene is used as the carrier of natural 14 C activity as previously described (Punning et al , 1973). We used both 1-channel and 2-channel scintillation devices. The detector shield comprises 10cm lead. Around the detector we put 16 Geiger-Mueller type counters in anticoincidence circuit with output signals from detector. It decreased the average background ca 20 to 40%.
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A. Liiva, E. Ilves, J-M Punning · Radiocarbon · 1966 · 21 citations · Full text