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Recent accomplishments in low-level radioactive waste measurement at Los Alamos

Description: Is Los Alamos National Laboratory (LANL) the only laboratory that has difficulty measuring low concentrations of alpha radioactivity in wastewater, or do the rest of the nation`s laboratories just not realize the lack of precision/accuracy in its own measurements? DOE Order 5400.5 sets 30 pCi/L total alpha as a goal for effluent discharge. The State of Colorado requires 0.05 pCi/L. The EPA is considering standards in this range for drinking water and therefore, presumably in treated wastewater … more
Date: March 1, 1994
Creator: Midkiff, W. S.; Attrep, M. & Covey, J. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Proposal for experiments with actinide elements

Description: An analytical study was conducted in which critical masses for some actinide isotopes were calculated with the Monte Carlo Neutron Photon (MCNP) Transport computer code. Different spherical computer models were used for even- and odd-neutron nuclides. Critical masses obtained are tabulated for Np-237, Pu-242, Am-241, Am-243, Pu-241, and Am-242m, together with indirect experimental data. Experimental data are needed for actinides with odd number of neutrons.
Date: June 1, 1994
Creator: Sanchez, R. G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Evaluation of low-level waste analysis using the MADAM system

Description: Previously, the important hardware features and capabilities for the Multiple Assay Dual Analysis Measurement (MADAM) system were reported. MADAM is a combined low-level and transuranic waste assay system. The system integrated commercially available Segmented Gamma Scanner (SGS) capability together with multienergy X-ray and gamma-ray analysis to measure these two waste forms. In addition, the system incorporated a small neutron slab detector to satisfy safeguards concerns and high resolution … more
Date: August 1, 1994
Creator: Foster, L. A.; Wachter, J. R. & Hagan, R. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Behavior of actinides in the Integral Fast Reactor fuel cycle

Description: The Integral Fast Reactor (IFR) under development by Argonne National Laboratory uses metallic fuels instead of ceramics. This allows electrorefining of spent fuels and presents opportunities for recycling minor actinide elements. Four minor actinides ({sup 237}Np, {sup 240}Pu, {sup 241}Am, and {sup 243}Am) determine the waste storage requirements of spent fuel from all types of fission reactors. These nuclides behave the same as uranium and other plutonium isotopes in electrorefining, so they … more
Date: June 1, 1994
Creator: Courtney, J. C. & Lineberry, M. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Actinide behavior in the Integral Fast Reactor. Final project report

Description: The Integral Fast Reactor (IFR) under development by Argonne National Laboratory uses metallic fuels instead of ceramics. This allows electrorefining of spent fuels and presents opportunities for recycling minor actinide elements. Four minor actinides ({sup 237}Np, {sup 240}Pu, {sup 241}Am, and {sup 243}Am) determine the waste storage requirements of spent fuel from all types of fission reactors. These nuclides behave the same as uranium and other plutonium isotopes in electrorefining, so they … more
Date: November 1, 1994
Creator: Courtney, J. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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