Download or read book The use of resin beads for mass spectrometric analysis of uranium and plutonium written by A. P. Knight and published by . This book was released on 1987 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sequential mass spectrometric analysis of uranium and plutonium employing resin bead technique written by K. L. Ramakumar and published by . This book was released on 1985 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book I Thermal Emission Resin Bead Mass Spectrometric Two filament Arrangement Evaluation A 82 II The Rapid Bulk Resin Bead Method of Sample Preparation for Mass Analysis of Plutonium and Uranium in Spent Reactor Fuel A 56 written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress on investigations to improve precision on mass spectrometric isotopic ratio measurements is reported. A detailed set of intructions as submitted to ASTM Committee C-26.05 on the rapid preparation and analysis of uranium and plutonium samples mass spectrometrically by the resin bead technique is also presented. This report contains information on two separate topics: one is a progress report on the International Safeguards Project Office A.82 in which we investigated various means of obtaining better precision on mass spectrometric isotopic ratio measurements. The idea investigated most thoroughly was the use of a two-filament source configuration on a pulse-counting mass spectrometer; our conclusion was that better results could be obtained with commercially available source systems. ORNL has purchased a turret source for evaluation on the two stage mass spectrometer. The second part of this report is a copy of the resin bead mass spectrometric procedure wd have submitted to ASTM for consideration for inclusion in their standard practice manual. This is a detailed, step-by-step description of uranium and plutonium sample preparation and analysis using the rapid bulk resin bead technique.
Download or read book Analysis of Plutonium and Uranium by the Resin Bead mass Spectrometric Method written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of the resin bead method and the techniques employed in its application to isotopic analysis of Pu and U in highly radioactive solutions of spent reactor fuel will be described. The method, developed primarily for safeguards analyses, may also be applied to isotopic measurement for assessing nuclear fuel cycle technology. Satisfactory analyses of both elements can be obtained from a single resin bead when the initial dissolver solution has a U/Pu ratio in the range of 50 to 300. Optimum bead loadings are 1 to 3 ng Pu and U; these loadings are obtained if the concentration of the solution is adjusted to about 1 .mu.g U per bead before the beads are introduced. Isotopic composition measurements of NBS standards using this technique indicate a precision of +- 0.5% for minor isotopes in the 1% concentration range and +- 0.1% for major isotopes in the 50% range. Analyses of a synthetic dissolver solution give an accuracy for the isotope dilution measurement of Pu and U of less than or equal to 0.5% with an internal precision of 0.9% and 0.6% for Pu and U, respectively.
Download or read book Single stage Mass Spectrometric Analyses of Resin Bead Samples written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Plutonium and uranium from dissolver solutions loaded on resin beads can be analyzed on single-stage mass spectrometers with little or no degradation of results provided proper care is exercised with regard to sample handling techniques. Additionally, storage of samples on resin beads is feasible for periods at least as long as six months provided the beads are not exposed to residual HNO/sub 3/ and air; it is probable that beads will retain their integrity much longer than six months when stored under collodion, but as yet no data to support this contention have been collected. Conventional or commercial mass spectrometers can readily be adapted to the resin bead technique by installing a pulse-counting detection system. The cost of such conversion will vary depending on whether or not a data acquisition system will be needed. A reasonable estimate is that the cost will be in the neighborhood of $15,000; this figure includes the price of a multi-channel analyzer to serve as a temporary data storage device, but does not include the cost of a computer. It does not appear that it will be practicable to switch easily back and forth between pulse-counting and current integration modes unless the instrument is provided with a movable Faraday cup. Using the same multiplier in both modes would undoubtedly degrade its performance in each. The requirements of low background counting rates and high gain for pulse counting, and of relatively high signal handling capacity in current integration are mutually incompatible if demanded of the same multiplier.
Download or read book Practical Aspects of the Resin Bead Technique for Mass Spectrometric Sample Loading written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Using an anion resin bead as a loading vehicle for uranium and plutonium samples which are to be analyzed isotopically in a mass spectrometer has many advantages over conventional techniques. It is applicable to any laboratory routinely performing such analyses, but should be particularly relevant for Safeguards' purposes. Because the techniques required differ markedly from those of conventional methods, this report has been written to describe them in detail to enable those unfamiliar with the technique to master it with a minimum of trouble.
Download or read book Single stage Mass Spectrometric Analyses of Resin Bead Samples written by Oak Ridge National Laboratory. Analytical Chemistry Division and published by . This book was released on 1978 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NBS Special Publication written by and published by . This book was released on 1968 with total page 876 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 1992 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications of the National Bureau of Standards Catalog written by United States. National Bureau of Standards and published by . This book was released on 1980 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement technology for safeguards and materials control written by American Nuclear Society and published by . This book was released on 1980 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications written by United States. National Bureau of Standards and published by . This book was released on 1981 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement Technology for Safeguards and Materials Control written by Thomas R. Canada and published by . This book was released on 1980 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NBSIR written by and published by . This book was released on 1980 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications of the National Institute of Standards and Technology Catalog written by National Institute of Standards and Technology (U.S.) and published by . This book was released on 1985 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Feasibility Study of Plutonium Isotopic Analysis of Resin Beads by Nondestructive Gamma ray Spectroscopy written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We have initiated a feasibility study on the use of nondestructive low-energy gamma-ray spectroscopy for plutonium isotopic analysis on resin beads. Seven resin bead samples were measured, with each sample containing an average of 9 .mu.g of plutonium; the isotopic compositions of the samples varied over a wide range. The gamma-ray spectroscopy results, obtained from 4-h counting-time measurements, were compared with mass spectrometry results. The average ratios of gamma-ray spectroscopy to mass spectrometry were 1.014 +- 0.025 for 238Pu/239Pu, 0.996 +- 0.018 for 24°Pu/239Pu, and 0.980 +- 0.038 for 241Pu/239Pu. The rapid, automated, and accurate nondestructive isotopic analysis of resin beads may be very useful to process technicians and International Atomic Energy Agency inspectors. 3 refs., 1 fig., 3 tabs.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 934 pages. Available in PDF, EPUB and Kindle. Book excerpt:
