Abstract
DETECTION of selenium by neutron irradiation and gamma scintillation spectrometry has been attempted. It is known that, when natural selenium is irradiated with neutrons, selenium-75 (121 days), selenium-77 m (17.5 sec.) and selenium-81 (18.2 min.) are formed with comparatively large cross-sections. When any one of them is used to detect selenium, irradiation must be continued for a period comparable to the half-life. Therefore, it was thought that the use of selenium-77 m offered a method for the rapid detection of selenium ; this method has not been described in the literature examined.
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OKADA, M. Non-destructive Analysis of Selenium by Neutron Activation followed by Gamma-Ray Spectrometry. Nature 187, 594–595 (1960). https://doi.org/10.1038/187594a0
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DOI: https://doi.org/10.1038/187594a0
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