True coincidence summing corrections for an extended energy range HPGe detector

True coincidence summing corrections for an extended energy range HPGe detector

True coincidence summing (TCS) effect for natural radioactive families of U-238 and Th-232 represents a problem when an environmental sample with a close source-detector geometry measurement is performed. By using a certified multi-nuclide standard source to calibrate an energy extended range (XtRa)...

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Hauptverfasser: Venegas-Argumedo, Y., M.S. Student at CIMAV, Montero-Cabrera, M. E.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
CALIBRATION
COINCIDENCE METHODS
CORRECTIONS
ENVIRONMENTAL MATERIALS
GAMMA SPECTRA
HIGH-PURITY GE DETECTORS
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
NUCLEAR PHYSICS AND RADIATION PHYSICS
SOILS
THORIUM 232
URANIUM 238
VALIDATION
WATER
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Beschreibung
Zusammenfassung:True coincidence summing (TCS) effect for natural radioactive families of U-238 and Th-232 represents a problem when an environmental sample with a close source-detector geometry measurement is performed. By using a certified multi-nuclide standard source to calibrate an energy extended range (XtRa) HPGe detector, it is possible to obtain an intensity spectrum slightly affected by the TCS effect with energies from 46 to 1836 keV. In this work, the equations and some other considerations required to calculate the TCS correction factor for isotopes of natural radioactive chains are described. It is projected a validation of the calibration, performed with the IAEA-CU-2006-03 samples (soil and water)
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4927193