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Technetium Behavior and Recovery in Soil

Description: Technetium-99 in soils is of great concern because of its long half-life and because it can not be detected readily. This work reviews the behavior of technetium in various types of soils. A method for extracting technetium from soil was developed with the use of technetium-95m and 99m to determine recoveries at each step. Technetium chemistry is very complicated and problem areas in the behavior and recovery have been highlighted. Technetium is widely used in nuclear medicine and a review of i… more
Date: December 1, 1995
Creator: Meinken, G. E.
Partner: UNT Libraries Government Documents Department
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{Beta}{sup {minus}}-decay and cosmic-ray half-life of {sup 54}Mn

Description: A superconducting solenoid electron spectrometer operated in the lens mode was adapted to search for the {beta}{sup {minus}}-decay of {sup 54}Mn. The Compton-electron and other instrumental backgrounds have been significantly reduced by special shielding of the absorber system. An improved procedure has been developed to select the events by momenta. A limit of 2.7 {times} 10{sup {minus}5} has been established for the {beta}{sup {minus}} branch.
Date: May 1, 1995
Creator: Kibedi, T.; Kerr, M.; Dracoulis, G.D.; Byrne, A.P. & Norman, E.B.
Partner: UNT Libraries Government Documents Department
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United States Transuranium and Uranium Registries. Annual Report, October 1, 1993--September 30, 1994

Description: This report summarizes the salient activities and progress of the United States Transuranium. and Uranium Registries for the period October 1, 1993 through September 30, 1994, along with details of specific programs areas including the National Human Radiobiology Tissue Repository (NHRTR) and tissue radiochemistry analysis project. Responsibility for tissue radioanalysis was transferred from Los Alamos National Laboratory to Washington State University in February 1994. The University of Washin… more
Date: August 1, 1995
Creator: Kathren, R.L. & Harwick, L.A.
Partner: UNT Libraries Government Documents Department
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Proton radioactivity studies at the FMA

Description: A double sided silicon strip (DSSD) setup is installed at the Argonne National Laboratory recoil separator FMA. Ground state proton emitters {sup 146,147}Tm, {sup 160}Re, {sup 156}Ta, {sup 150,151}Lu were produced in a series of test experiments. Improved T{sub 1/2} values were obtained for {sup 147}Tm, {sup 160}Re, and {sup 156}Ta. Improved alpha T{sub 1/2} value of (13.2 {plus_minus} 1.1) ms was obtained for {sup 161}Re. In a search of new proton radioactivities a (5 {plus_minus} 2)% proton d… more
Date: December 31, 1995
Creator: Penttila, H.; Davids, C.N. & Woods, P.J.
Partner: UNT Libraries Government Documents Department
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