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in subjects: "Gadolinium Compounds"  
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Radiation damage studies related to nuclear waste forms

Description: Much of the previously reported work on alpha radiation effects on crystalline phases of importance to nuclear waste forms has been derived from radiation effects studies of composite waste forms. In the present work, two single-phase crystalline materials, Gd/sub 2/Ti/sub 2/O/sub 7/ (pyrochlore) and CaZrTi/sub 2/O/sub 7/ (zirconolite), of relative importance to current waste forms were studied independently by doping with /sup 244/Cm at the 3 wt % level. Changes in the crystalline structure me… more
Date: December 1, 1981
Creator: Gray, W.J.; Wald, J.W. & Turcotte, R.P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Gadolinium as an element for neutron capture therapy

Description: At BNL, preparations are being made to test in vitro compounds containing Gd and compare their response to the response of GD-DTPA to determine if one or several compounds can be located that enter the cells and enhance the Auger effect. Two similar rotators with positions for cell vials that have been constructed for these tests. The first rotator is made of only paraffin which simulates healthy tissue and provides control curves. The second rotator has 135 ppM of Gd-157 in the paraffin to sim… more
Date: December 31, 1992
Creator: Brugger, R. M.; Liu, H. B.; Laster, B. H.; Gordon, C. R.; Greenberg, D. D. & Warkentien, L. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Thermoelectric materials evaluation program. Quarterly technical task report No. 44. [GdSe/sub x/; TPM-217]

Description: This document covers: N-type material development (gadolinium selenide; synthesis, analysis, processing, element contacting, compatibility, life testing), TPM-217 P-type characterization (element contacting, compatibility, life and performance testing, partition), and couple development (TPM-217/N-rare earth chalcogenide, TPM-217/3N-PbTe). (DLC)
Date: December 1974
Creator: Hampl, E. F. Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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EXAFS studies of lanthanide coordination in crystalline phosphates and amorphous phytates

Description: As part of the DOE Efficient Separations and Processing Integrated Program, techniques are being developed to stabilize radioactive and hazardous contaminants to prevent their migration from buried wastes. This report is part of a study to immobilize actinide ions in the near-surface environment by reacting them with organophosphorus complexants that decompose to phosphates. Nd and Gd ions were used as models for Pu, Am, and Cm ions; phytic acid was used as the complexant. Solid Nd and Gd phyta… more
Date: December 31, 1995
Creator: Morss, L. R.; Schmidt, M. A. J. & Nash, K. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

X-ray pumped Cr,Nd:GSGG laser

Description: It has been demonstrated that X-rays alone can be used to pump a 1,061 nm Cr,Nd:GSGG laser. Lasing action has been observed when the laser rod absorbs greater than 27 krad of 2 MeV X-rays. The laser cavity consists of a corner cube and a output mirror with a reflectivity of 67%. The X-rays are delivered in a 20 ns pulse, and laser action is observed several {micro}s after the X-ray pulse. This delay suggests that chromium is important in the laser pumping process since it is known that an excit… more
Date: December 1995
Creator: Brannon, P. J.; Hedemann, M. A. & Weichman, L. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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