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DIRECT RADIOMETRIC MEASUREMENT BY GAMMA-RAY SCINTILLATION SPECTROMETER

1956; Geological Society of America; Volume: 67; Issue: 4 Linguagem: Inglês

10.1130/0016-7606(1956)67[395

1943-2674

Patrick Hurley,

Seismology and Earthquake Studies

Research Article| April 01, 1956 DIRECT RADIOMETRIC MEASUREMENT BY GAMMA-RAY SCINTILLATION SPECTROMETER: PART I: URANIUM AND THORIUM SERIES IN EQUILIBRIUM PATRICK M HURLEY PATRICK M HURLEY U. S. GEOLOGICAL SURVEY, WASHINGTON 25, D. C., AND MASSACHUSETTS INSTITUTE OF TECHNOLOGY, CAMBRIDGE 39, MASS. Search for other works by this author on: GSW Google Scholar Author and Article Information PATRICK M HURLEY U. S. GEOLOGICAL SURVEY, WASHINGTON 25, D. C., AND MASSACHUSETTS INSTITUTE OF TECHNOLOGY, CAMBRIDGE 39, MASS. Publisher: Geological Society of America Received: 12 Apr 1955 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1956, The Geological Society of America, Inc. Copyright is not claimed on any material prepared by U.S. government employees within the scope of their employment. GSA Bulletin (1956) 67 (4): 395–404. https://doi.org/10.1130/0016-7606(1956)67[395:DRMBGS]2.0.CO;2 Article history Received: 12 Apr 1955 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation PATRICK M HURLEY; DIRECT RADIOMETRIC MEASUREMENT BY GAMMA-RAY SCINTILLATION SPECTROMETER: PART I: URANIUM AND THORIUM SERIES IN EQUILIBRIUM. GSA Bulletin 1956;; 67 (4): 395–404. doi: https://doi.org/10.1130/0016-7606(1956)67[395:DRMBGS]2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract Where uranium and thorium are in secular equilibrium with their decay products, these elements may be determined by this direct radiometric method if the materials show more than 0.01 per cent equivalent uranium. This method is based on the measurement in a scintillation spectrometer of the relative amplitude of the response from the 238 kev gamma ray from Pb212. Tests on known samples containing different relative proportions of uranium and thorium have verified the predicted precision of better than 4 per cent standard deviation per single comparison with a standard when the element measured is a major contributor to the activity. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.