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Measurement Of The Isotopic Enrichment Of Uranium By A Direct Comparison Mass Spectrometer Method
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Book Synopsis Measurement of the Isotopic Enrichment of Uranium by a Direct Comparison Mass Spectrometer Method by : V. L. Warren
Download or read book Measurement of the Isotopic Enrichment of Uranium by a Direct Comparison Mass Spectrometer Method written by V. L. Warren and published by . This book was released on 1958 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Automatic Mass Spectrometer for Relative Measurements of Uranium Isotopes by : A. Langdon
Download or read book An Automatic Mass Spectrometer for Relative Measurements of Uranium Isotopes written by A. Langdon and published by . This book was released on 1963 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Uranium Isotope Measurements by Quadrupole ICP-MS for Process Monitoring of Enrichment by : RN. Bolin
Download or read book Uranium Isotope Measurements by Quadrupole ICP-MS for Process Monitoring of Enrichment written by RN. Bolin and published by . This book was released on 1998 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Historically, uranium isotopic ratio measurements in the nuclear industry have been performed using Thermal Ionization Mass Spectrometry (TIMS); primarily due to the high level of precision that can be achieved. TIMS analysis, however, requires sample purification and intricate sample loading. Quadrupole (low resolution, single detector) inductively coupled plasma -- mass spectrometry, Q-ICP-MS, overcomes these disadvantages and is a cost-effective alternative, i.e., in terms of initial capital, maintenance, and operating costs. This paper presents a simple, single standard approach for measuring uranium isotope content in various solid and liquid nuclear materials along with some comparison data of Q-ICP-MS and TIMS. Intensity ratios of 234U, 235U, 236U, and 238U to total U intensity are produced, providing the enrichment level or percent 235U. A detailed description of the instrument and data collection parameters is also provided. Optimal precision and accuracy are achieved through the use of a single standard which is closely matched to the enrichment and concentration of the samples. Depending upon the standard chosen, enrichments between depleted and 97% can be quantified. Standard deviations for the major uranium isotopes are typically within 0.02 absolute and at least an order of magnitude lower for the minor U isotope abundances.
Book Synopsis Mass Spectrometry for Uranium Isotopic Measurements by : Charles Dewey Tabor
Download or read book Mass Spectrometry for Uranium Isotopic Measurements written by Charles Dewey Tabor and published by . This book was released on 1960 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Isotopic Ratio Measurement of Uranium in the Form of Hydrolyzed Uranium Hexafluoride by Inductively Coupled Plasma Multiple Collector Mass Spectrometry by : T. Hodgson
Download or read book The Isotopic Ratio Measurement of Uranium in the Form of Hydrolyzed Uranium Hexafluoride by Inductively Coupled Plasma Multiple Collector Mass Spectrometry written by T. Hodgson and published by . This book was released on 1995 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: An inductively coupled plasma-multiple collector-mass spectrometer (ICP-MC-MS) has been used to measure the isotopic composition of uranium in three solutions of uranium hexafluoride. The 235U: 238U ratio of each sample solution ranged from approximately 0.007 to 0.03 to 1.0. The measurements are linear over this range and the precision and accuracy are comparable, if not superior, to that obtained by thermal ionization mass spectrometry (TIMS). However, acceptable isotopic ratio measurement of uranium hexafluoride solutions is not possible by TIMS because the presence of fluoride ions severely limits analytical precision. Hence, the fluoride must be removed prior to analysis. This necessitates a chemical purification stage which adds both time and expense to the measurement process. This study reports direct, high precision, accurate uranium isotope ratio measurements on solutions of uranium hexafluoride. The instrumental time required for the analysis of 15 uranium samples with the ICP-MC-MS totals 135 min. This compares with an estimated time requirement of 600 min by TIMS and a time of 900 min by UF6 gas mass spectrometry.
Book Synopsis Selected Measurement Methods for Plutonium and Uranium in the Nuclear Fuel Cycle by : Ralph J. Jones
Download or read book Selected Measurement Methods for Plutonium and Uranium in the Nuclear Fuel Cycle written by Ralph J. Jones and published by . This book was released on 1963 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Impurity Effects in the Mass Spectrometer Isotopic Analysis of Uranium Hexafluoride by : J. C. Horton
Download or read book Measurement of Impurity Effects in the Mass Spectrometer Isotopic Analysis of Uranium Hexafluoride written by J. C. Horton and published by . This book was released on 1958 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Uranium Hexafluoride Isotopic Measurements Using an Interpolative Method by : G. F. Kauffman
Download or read book Uranium Hexafluoride Isotopic Measurements Using an Interpolative Method written by G. F. Kauffman and published by . This book was released on 1960 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Enriched Uranium Processing by : Finis S. Patton
Download or read book Enriched Uranium Processing written by Finis S. Patton and published by . This book was released on 1963 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modern Approaches to Isotopic Analysis of Uranium by :
Download or read book Modern Approaches to Isotopic Analysis of Uranium written by and published by . This book was released on 1957 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in Mass Spectrometry by : R. M. Elliott
Download or read book Advances in Mass Spectrometry written by R. M. Elliott and published by Elsevier. This book was released on 2013-10-22 with total page 647 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Mass Spectrometry, Volume 2 documents the proceedings of a conference on mass spectrometry held in Oxford in September 1961. This compilation is categorized into six major topics — mass spectrometry in research; mass spectrometry of inorganic compounds; instruments and techniques; theory and correlation of mass spectra; mass spectra and analysis; and ionization and dissociation. Under these major topics, parts of the papers discussed include field ionization mass spectroscopy; initial kinetic energy discrimination effects in crossed-field ion sources; mass spectrometric study of CaO and Ta; and spark source mass spectrometry as an analytical technique. The book also covers discussions on initial energy of hydrocarbon fragment ions; determination of the structure of alkaloids by mass spectrometry; and application of a time-of-flight mass spectrometer to the examination of ion-molecule interactions. This volume is a useful reference to students and researchers conducting work on mass spectrometry.
Book Synopsis Uranium Measurement Improvements at the Savannah River Technology Center by :
Download or read book Uranium Measurement Improvements at the Savannah River Technology Center written by and published by . This book was released on 2002 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Uranium isotope ratio and isotope dilution methods by mass spectrometry are used to achieve sensitivity, precision and accuracy for various applications. This report presents recent progress made at SRTC in the analysis of minor isotopes of uranium. Comparison of routine measurements of NBL certified uranium (U005a) using the SRTC Three Stage Mass Spectrometer (3SMS) and the SRTC Single Stage Mass Spectrometer (SSMS). As expected, the three stage mass spectrometer yielded superior sensitivity, precision, and accuracy for this application.
Book Synopsis Procedures for Handling and Analysis of Uranium Hexafluoride: Analysis by : U.S. Atomic Energy Commission
Download or read book Procedures for Handling and Analysis of Uranium Hexafluoride: Analysis written by U.S. Atomic Energy Commission and published by . This book was released on 1972 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Determination of Uranium Isotope Abundances and Reactor Fuel Burnup by Mass Spectrometry by : D. E. Fornwalt
Download or read book The Determination of Uranium Isotope Abundances and Reactor Fuel Burnup by Mass Spectrometry written by D. E. Fornwalt and published by . This book was released on 1963 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Determination of Uranium and Plutonium Concentrations and Isotopic Abundances by : B. F. Rider
Download or read book Determination of Uranium and Plutonium Concentrations and Isotopic Abundances written by B. F. Rider and published by . This book was released on 1964 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis REIMEP 18 Inter-laboratory Comparison for the Measurement of Uranium Isotopic Ratios in Nitric Acid Solution by :
Download or read book REIMEP 18 Inter-laboratory Comparison for the Measurement of Uranium Isotopic Ratios in Nitric Acid Solution written by and published by . This book was released on 2006 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The REIMEP 18 (Regular European Inter-laboratory Measurement Evaluation Programme) campaign was started in October 2005. For this campaign 4 samples of depleted to low-enriched uranium were chosen. Certification measurements were carried out using a Varian MAT511 UF6-gas source mass spectrometer (GSMS) for the 235U/238U ratio and using a Triton thermal ionisation mass spectrometer (TIMS) for the minor isotope ratios 234U/238U and 236U/238U. Verification measurements of ampouled samples were performed successfully and showed good agreement with the certified ratios. REIMEP 18 has become one of the largest nuclear measurement campaigns organized by IRMM so far. Samples were shipped in March 2006 to ca. 80 registered participants. The participating laboratories are expected to submit their results until May 31st, 2006. This report describes the planning of the REIMEP 18 campaign, including the selection of campaign samples and the certification measurements.
Book Synopsis REIMEP-18, Inter-laboratory Comparison for the Measurement of Uranium Isotopic Ratios in Nitric Acid Solution by :
Download or read book REIMEP-18, Inter-laboratory Comparison for the Measurement of Uranium Isotopic Ratios in Nitric Acid Solution written by and published by . This book was released on 2006 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The REIMEP 18 (Regular European Inter-laboratory Measurement Evaluation Programme) campaign was started in October 2005. For this campaign 4 samples of depleted to low-enriched uranium were chosen. State of the art certification measurements were carried out using a Varian MAT511 UF6-gas source mass spectrometer (GSMS) for the n(235U)/n(238U) ratio and using a Triton thermal-ionization mass-spectrometer (TIMS) for the minor isotope ratios n(234U)/n(238U) and n(236U)/n(238U). Verification measurements on ampouled samples were performed successfully and showed good agreement with the certified ratios. REIMEP 18 has been the largest nuclear measurement campaign organized by IRMM so far. Samples were shipped in March 2006 to 85 registered participants. Most of the participating laboratories submitted their results before May 31st 2006. Due to problems with the sample containers and extended shipping times the submission deadline had to be postponed until September 30th 2006 for some of the participating laboratories. In the end IRMM received results from 71 laboratories. The results of the REIMEP 18 campaign confirm in general the excellent capability of laboratories in measuring isotopic abundances of uranium although some problems arose for the measurements of the minor isotope ratios n(234U)/n(238U) and n(236U)/n(238U). This report describes the outcome of the REIMEP 18 campaign, including the graphical evaluation and discussion of the results, the evaluation of the questionnaire and the discussion of conclusions and actions to be taken.
