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Effect Of Internal Alpha Radiation On Borosilicate Glass Containing Simulated Radioactive Waste
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Book Synopsis Effect of Internal Alpha Radiation on Borosilicate Glass Containing Simulated Radioactive Waste by :
Download or read book Effect of Internal Alpha Radiation on Borosilicate Glass Containing Simulated Radioactive Waste written by and published by . This book was released on 2001 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: To evaluate borosilicate glass as a matrix for long-term storage of radioactive waste, samples containing 45 wt. percent simulated waste along with 0.5 wt. percent 244Cm or 1 wt. percent 238Pu as alpha particle emitters were synthesized. A glass containing 238Pu without simulated waste was also made. Effects of internal alpha radiolysis from 244Cm and 238Pu on physical stability, leachability, and dilatation of the glasses were examined. Results confirm that glass may be a desirable matrix for fixing SRP radioactive waste for long-term storage. Internal alpha radiolysis and helium accumulation in the small samples did not significantly damage the glass. Actual values for helium solubility and permeability would be necessary, however, to determine whether helium accumulation might eventually damage larger glass monoliths during long-term storage.
Book Synopsis Effect of Internal Alpha Radiation on Borosilicate Glass Containing Savannah River Plant Waste by :
Download or read book Effect of Internal Alpha Radiation on Borosilicate Glass Containing Savannah River Plant Waste written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Effects of internal alpha radiation on borosilicate glass, a perspective matrix for long-term storage of Savannah River Plant (SRP) radioactive waste, were evaluated in samples containing 45 wt % simulated waste (Fe(OH)3--MnO2) and either 0.5 wt % 244Cm or 1 wt % 238Pu. A glass containing 238Pu without waste was also studied for comparison. The glasses were examined for changes in physical stability, leachability, and dilatation. Alpha dose rates in the test glasses ranged from 4.5 x 1014 to 1.3 x 1015 alpha dis/(g-day). After 420 days, microcracks had formed; however, no macrostructural damage to the glasses was observed. Leachabilities for 244Cm and 238Pu were 7 x 10−8 g/(cm2-day) and were not affected by the radiation. Continuous leaching by water for 5 days removed
Book Synopsis Effects of Alpha, Gamma, and Alpha-recoil Radiation on Borosilicate Glass Containing Savannah River Plant Defense High-level Nuclear Waste. [Lead Ions-250 KeV; Xenon Ions-160 KeV]. by :
Download or read book Effects of Alpha, Gamma, and Alpha-recoil Radiation on Borosilicate Glass Containing Savannah River Plant Defense High-level Nuclear Waste. [Lead Ions-250 KeV; Xenon Ions-160 KeV]. written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: At the Savannah River Plant, the reference process for the immobilization of defense high-level waste (DHLW) for geologic storage is vitrification into borosilicate glass. During geologic storage for 106 y, the glass would be exposed to approx. 3 x 101° rad of .beta. radiation, approx. 101° rad of .gamma. radiation, and 1018 particles/g glass for both .cap alpha. and .cap alpha.-recoil radiation. This paper discusses tests of the effect of these radiations on the leachability and density of the glass. Even though the doses were large, no effect of the radiations was detected that reduced the effectiveness of the glass for long-term storage of DHLW even at doses corresponding to 106 years storage for the actual glass. For the tests, glass containing simulated DHLW was prepared from frit of the reference composition. Three methods were used to irradiate the glass: external irradiations with beams of approx. 200 keV Xe or Pb ions, internal irradiations with Cm-244 doped glass, and external irradiations with Co-60 .gamma. rays. Results with both Xe and Pb ions indicate that a dose of 3 x 1013 ions/cm2 (simulating> 106 years storage) does not significantly increase the leachability of the glass in deionized water. Tests with Cm-244 doped glass show no increase in leach rate in water or brine up to a dose of 1018 .cap alpha. and .cap alpha.-recoils/g glass. Results of larger doses are being examined. The density of the Cm-244 doped glass has decreased by 1% at a dose of 1018 particles/g glass. With .gamma.-radiation, the density has changed by
Book Synopsis Thermal and Radiation Effects on Borosilicate Waste Glasses. [For Incorporation of Radioactive Wastes]. by :
Download or read book Thermal and Radiation Effects on Borosilicate Waste Glasses. [For Incorporation of Radioactive Wastes]. written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of experimental studies on the thermal and radiation effects on a high ZnO borosilicate glass are reported. The thermal studies were made on non-radioactive glass compositions. Devitrification, chemical segregation, leachability, porosity, and density were determined for several layers of glass samples stored at temperatures from 300 to 900/sup 0/C for periods from a day to 5 years. In the devitrified glass the major crystalline phases are Zn/sub 2/SiO/sub 4/ and SrMoO/sub 4/. The silicate crystals cause extensive cracking at the higher temperatures. An increase in leachability was observed for samples stored between 500 and 800/sup 0/C. At storage temperatures below 900/sup 0/C no settling was observed after two months storage. Radiation studies were made on a Cm-doped glass with approximately the same composition as that used in the thermal studies. A detailed study of the buildup and release behavior of stored energy in solidified wastes indicated that large temperature excursions resulting from the release of stored energy are not possible. The release rates of He were calculated for two geometries and glass containing trapped gas only and for glass in which the temperature was raised to 300/sup 0/. The leachability was not greatly affected by .cap alpha. doses up to 8 x 10/sup 17/ .cap alpha./g. (JSR).
Book Synopsis Irradiation Effects on Borosilicate Waste Glasses by :
Download or read book Irradiation Effects on Borosilicate Waste Glasses written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of alpha decay on five borosilicate glasses containing simulated nuclear high-level waste oxides were studied. Irradiations carried out at room temperature were achieved by incorporating 1 to 8 wt % 244Cm2O3 in the glasses. Density changes and stored-energy build-up saturated at doses less than 2 x 1021 alpha decays/kg. Damage manifested by stored energy was completely annealed at 633°K. Positive and negative density changes were observed which never exceeded 1%. Irradiation had very little effect on mechanical strength or on chemical durability as measured by aqueous leach rates. Also, no effects were observed on the microstructure for vitreous waste glasses, although radiation-induced microcracking could be achieved on specimens that had been devitrified prior to irradiation.
Book Synopsis Volatility of a Zinc Borosilicate Glass Containing Simulated High-level Radioactive Waste by : Walter James Gray
Download or read book Volatility of a Zinc Borosilicate Glass Containing Simulated High-level Radioactive Waste written by Walter James Gray and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radioactive Waste Processing and Disposal by : U.S. Nuclear Regulatory Commission
Download or read book Radioactive Waste Processing and Disposal written by U.S. Nuclear Regulatory Commission and published by . This book was released on 1980 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1986 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Geochemical Aspects of Radioactive Waste Disposal by : D. G. Brookins
Download or read book Geochemical Aspects of Radioactive Waste Disposal written by D. G. Brookins and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is an extremely voluminous literature on radioactive waste and its disposal, much in the form of government-sponsored research reports. To wade through this mountain of literature is indeed a tedious task, and it is safe to speculate that very few, if any, individuals have the time to examine each report that has been issued during the preceding ten years. This book attempts to summarize much of this literature. Further, many workers in the geosciences have not received training in the nuclear sciences, and many nuclear scientists could be better versed in geology. In this book an attempt is made to cover some background material on radioactive wastes and geotoxicity that may not be an integral part of a geologist's training, and background material on geology and geochemistry for the nuclear scientist. The geochemical material is designed for both the geoscientist and the nuclear scientist. There is no specific level for this book. Certainly, it should be useful to advanced undergraduates and graduates studying geology and nuclear science. It does not pretend to cover a tremendous amount of detail in all subjects, yet the references cited provide the necessary source materials for follow-up study. It is my intention that the reader of this book will have a better, broader understanding of the geochemical aspects of radioactive waste disposal than is otherwise available in anyone source.
Download or read book Glass IV written by Minoru Tomozawa and published by Elsevier. This book was released on 2013-10-22 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Treatise on Materials Science and Technology, Volume 28: Glass IV covers the developments in glass science and technology. The book discusses the use of silicon dioxide films in semiconductor devices; the nuclear waste glasses; and the synthesis and properties of oxynitride glasses. The text also describes the preparation, the properties, and the applications of heavy-metal fluoride glasses; and an analytical model of viscoelasticity in seals. Materials scientists and materials engineers will find the book invaluable.
Book Synopsis Strategy and Methodology for Radioactive Waste Characterization by : International Atomic Energy Agency
Download or read book Strategy and Methodology for Radioactive Waste Characterization written by International Atomic Energy Agency and published by IAEA. This book was released on 2007 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past decade significant progress has been achieved in the development of waste characterization and control procedures and equipment as a direct response to ever-increasing requirements for quality and reliability of information on waste characteristics. Failure in control procedures at any step can have important, adverse consequences and may result in producing waste packages which are not compliant with the waste acceptance criteria for disposal, thereby adversely impacting the repository. The information and guidance included in this publication corresponds to recent achievements and reflects the optimum approaches, thereby reducing the potential for error and enhancing the quality of the end product. -- Publisher's description.
Book Synopsis A Selected, Annotated Bibliography of Studies Relevant to the Isolation of Nuclear Wastes by :
Download or read book A Selected, Annotated Bibliography of Studies Relevant to the Isolation of Nuclear Wastes written by and published by . This book was released on 1980 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Reports Series written by and published by . This book was released on 1985 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Corrosion of Glass, Ceramics and Ceramic Superconductors by : David E. Clark
Download or read book Corrosion of Glass, Ceramics and Ceramic Superconductors written by David E. Clark and published by William Andrew. This book was released on 1992-12-31 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: A state-of-the-art treatment of glass and ceramic corrosion, this book presents fundamental chemical reactions, equations, computer codes and models, and practical examples by 33 leaders in the field.
Author :OECD Nuclear Energy Agency Publisher :Nuclear Energy Agency, Organisation for Economic Co-operation and Development ; Washington, D.C. : OECD Publications and Information Centre ISBN 13 : Total Pages :150 pages Book Rating :4.:/5 (318 download)
Book Synopsis Feasibility of Disposal of High-level Radioactive Waste Into the Seabed: Review of processes near a buried waste canister by : OECD Nuclear Energy Agency
Download or read book Feasibility of Disposal of High-level Radioactive Waste Into the Seabed: Review of processes near a buried waste canister written by OECD Nuclear Energy Agency and published by Nuclear Energy Agency, Organisation for Economic Co-operation and Development ; Washington, D.C. : OECD Publications and Information Centre. This book was released on 1988 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Feasibility of Disposal of High-level Radioactive Waste Into the Seabed by : K. R. Hinga
Download or read book Feasibility of Disposal of High-level Radioactive Waste Into the Seabed written by K. R. Hinga and published by . This book was released on 1988 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976-05 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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