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DE82780248

Publication Date	1980
Personal Author	Clark, G. C.; Dickson, B. L.; Borsaru, M.; Ceravolo, C.; Huppert, P.
Page Count	28
Abstract	A field trial of the CSIRO intrinsic germanium probe was made at the Amdel (Australian Mineral Development Laboratories) uranium calibration pits in South Australia. The aim was to demonstrate the capability of the probe to analyze directly uranium in-situ by the detection of the 1.001 MeV gamma -ray from Pa-234m. The trial has shown that the commercially available electronics used require further improvement, particularly in their ability to handle the high count rates encountered in this application, and that the detector must be shielded to attenuate low-energy radiation. The ratio of the count rates measured in pits 1 and 3 is in good agreement with the ratio of the assigned grades of the two test pits. The test pits were also logged using a scintillation NaI(T1) probe. The results obtained demonstrate the effect of Compton scattering on tripping factors used in spectral logging for potassium, uranium and thorium analyses. (Atomindex citation 13:645742)
Keywords	Uranium ores Efficiency Gamma detection Gamma logging Gamma radiation Gamma spectra High-purity ge detectors Nai detectors Ore composition Protactinium 234 Quantitative chemical analysis Uranium Foreign technology ERDA/050200
Source Agency	International Nuclear Information System
NTIS Subject Category	48A - Mineral Industries
Document Type	Technical Report
NTIS Issue Number	198221

Field Trial of CSIRO Intrinsic Germanium and Natural gamma Sirolog Probes at AMDEL Uranium Calibration Test Pits.

Field Trial of CSIRO Intrinsic Germanium and Natural gamma Sirolog Probes at AMDEL Uranium Calibration Test Pits.
DE82780248

Publication Date	1980
Personal Author	Clark, G. C.; Dickson, B. L.; Borsaru, M.; Ceravolo, C.; Huppert, P.
Page Count	28
Abstract	A field trial of the CSIRO intrinsic germanium probe was made at the Amdel (Australian Mineral Development Laboratories) uranium calibration pits in South Australia. The aim was to demonstrate the capability of the probe to analyze directly uranium in-situ by the detection of the 1.001 MeV gamma -ray from Pa-234m. The trial has shown that the commercially available electronics used require further improvement, particularly in their ability to handle the high count rates encountered in this application, and that the detector must be shielded to attenuate low-energy radiation. The ratio of the count rates measured in pits 1 and 3 is in good agreement with the ratio of the assigned grades of the two test pits. The test pits were also logged using a scintillation NaI(T1) probe. The results obtained demonstrate the effect of Compton scattering on tripping factors used in spectral logging for potassium, uranium and thorium analyses. (Atomindex citation 13:645742)
Keywords	Uranium ores Efficiency Gamma detection Gamma logging Gamma radiation Gamma spectra High-purity ge detectors Nai detectors Ore composition Protactinium 234 Quantitative chemical analysis Uranium Foreign technology ERDA/050200
Source Agency	International Nuclear Information System
NTIS Subject Category	48A - Mineral Industries
Document Type	Technical Report
NTIS Issue Number	198221