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The Quantitative Techniques of Scintillation Spectrometry as Applied to the Calibration of Standard Sources

Description: Report presenting "the determination of absolute gamma emission rates for monoenergetic gamma emitters using a single-channel scintillation spectrometer. Examples are given for Cr⁵¹, Cs¹³⁷, Nb⁹⁵, and Zn⁶⁵. Sources of error are discussed and steps being taken to improve the accuracy of the method are described" (p. 1).
Date: April 25, 1955
Creator: Heath, R. L. & Schroeder, F.
Partner: UNT Libraries Government Documents Department

Feasibility Study for an Airborne High-Sensitivity Gamma-Ray Survey of Alaska: Phase 2 (Final) Report -- 1976-1979 Program

Description: "This study constitutes a determination of the extent to which it is feasible to use airborne, high-sensitivity gamma-ray spectrometer systems for uranium reconnaissance in the State of Alaska, and specification of a preliminary plan for surveying the entire state of the 1975-1979 time frame."--Page iii.
Date: 1975
Creator: Texas Instruments Incorporated
Partner: UNT Libraries Government Documents Department

Scintillation spectrometer measurements of capture gamma rays from natural elements : third quarterly report covering the period December 15, 1961 to March 14, 1962

Description: A report which describes the how the low energy neutron capture gamma ray spectra has been obtained for inclusion in the atlas along with many ores. In addition to gaining this spectra, tests were conducted with the 5'' by 4'' NaI(TI) crystal in the present detector system.
Date: 1962
Creator: Greenwood, Reginald C. & Terrell, C. W.
Partner: UNT Libraries Government Documents Department

Scintillation spectrometer measurements of capture gamma rays from natural elements : fourth quarterly report covering the period March 15, 1962 to June 14, 1962

Description: A report about obtaining low energy neutron capture gamma-ray spectra of a suitable quality for inclusion in the Atlas. It analyzes several low energy spectra obtained from many sources.
Date: 1962
Creator: Greenwood, Reginald C. & Terrell, C. W.
Partner: UNT Libraries Government Documents Department

Scintillation spectrometer measurements of capture gamma rays from natural elements : sixth quarterly report covering the period November 1, 1962 to January 31, 1963

Description: This report discusses many low energy neutron capture gamma ray spectra from many elements. Also, a series of neutron capture gamma ray spectra from a wide variety of meteorite and terrestrial rock samples were obtained.
Date: 1963
Creator: Greenwood, Reginald C.
Partner: UNT Libraries Government Documents Department

Scintillation spectrometer measurements of capture gamma rays from natural elements : seventh quarterly report covering the period February 1, 1963 to April 30, 1963

Description: A report focused on obtaining further neutron capture gamma ray spectra for inclusion in the Atlas, and in conducting subsidiary experiments to determine the cause of the anomalous broad peak structure which was reported in ARF 1193-20.
Date: 1963
Creator: Greenwood, Reginald C.; Reed, J. H. & Kolar, R. D.
Partner: UNT Libraries Government Documents Department

Parameter Assignments for Spectral Gamma-Ray Borehole Calibration Models

Description: Abstract: This report documents the work performed to determine the newly assigned concentration for the spectral gamma-ray borehole calibration models. Thirty-two models, maintained by the U.S. Department of Energy, are included in this study, and are grouped into eight sets of four models each. The eight sets are located at sites across the United States, and are used to calibrate logging instruments. The assignments are based on in-situ logging data to ensure self-consistency in the assigned concentrations, and on laboratory assays of concrete samples from each model to provide traceability to the New Brunswick Laboratory (NBL) standards.
Date: April 1984
Creator: Heistand, B. E. & Novak, E. F.
Partner: UNT Libraries Government Documents Department

Spatially-Dependent Measurements of Surface and Near-Surface Radioactive Material Using In situ Gamma Ray Spectrometry (ISGRS) For Final Status Surveys

Description: In-situ, high-resolution gamma-ray spectrometry (ISGRS) measurements were conducted at the Oak Ridge Institute for Science and Education (ORISE) field laboratory in Oak Ridge, Tennessee. The purpose of these tests was to provide analytical data for assessing how “fit for use” this technology is for detecting discrete particles in soil.
Date: November 15, 2006
Creator: J. A. Chapman, A. J. Boerner, E. W. Abelquist
Partner: UNT Libraries Government Documents Department

Direct Radiometric Measurement of the Uranium and Thorium Series in Equilibrium by Gamma-Ray Scintillation Spectrometer

Description: From abstract: "When 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 percent equivalent uranium." Sections include instrumentation, relative spectra of the uranium and thorium series, method of analysis and tests, and source geometry.
Date: February 1955
Creator: Hurley, Patrick M.
Partner: UNT Libraries Government Documents Department

Scintillation spectrometer measurements of capture gamma rays from natural elements : second quarterly report covering the period September 15, 1961 to December 14, 1961

Description: A report which intends to make a compilation of neutron capture gamma ray spectra of naturally occurring elements, covering both the low and the high energy spectral region, using NaI(TI) scintillation detectors.
Date: 1962
Creator: Greenwood, Reginald C. & Terrell, C. W.
Partner: UNT Libraries Government Documents Department

Photoproduction of Beryllium-7

Description: From abstract: "The nuclide Be7 has been produced by photoactivation of Be9, B and C12 using the bremsstrahlung beam of an electron synchrotron operated at 45 Mev. Integrated cross sections for the formation of Be7 have been estimated by comparison with the Ta181([gamma],n)Ta180m reaction. The reaction C12([gamma],2p3n)Be7 has also been observed in irradiations at 30, 35 and 40 Mev maximum energy. Its yield has been compared with that of the C12([gamma],n) reaction at 45 Mev. The reaction A127([gamma],2p3n)Na22 was observed at 45 Mev."
Date: 1960
Creator: Foster, M. S. & Voigt, A. F.
Partner: UNT Libraries Government Documents Department

Scintillation Spectrometer Measurements of Capture Gamma Rays From Natural Elements: First Quarterly Report

Description: From abstract: "The objective of this program is to make a compilation of neutron capture gamma ray spectra of the naturally occurring elements, covering both the low and high energy region, using Na I(TI) scintillation detectors...During this phase of the program a detection system, together with its associated shielding was constructed and tested."
Date: October 4, 1961
Creator: Greenwood, Reginald C. & Stone, C. A.
Partner: UNT Libraries Government Documents Department
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