Download or read book A Thermal emission Mass Spectrometer for Rapid and Accurate Determination of Uranium Isotopes written by and published by . This book was released on 1978 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermal emission Mass Spectrometer for Rapid and Accurate Determination of Uranium Isotopes written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rapid Determination of Uranium in Natural Waters by Thermal Emission Mass Spectrometry written by James Robert Ferguson and published by . This book was released on 1977 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rapid Determination of Uranium in Natural Waters by Thermal Emission Mass Spectrometry Revision 1 written by and published by . This book was released on 1977 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: A six-inch radius mass spectrometer has been constructed and demonstrated to adequately analyze water samples for uranium concentrations down to 5 to 10 ng/liter (ppt). The precision and accuracy of the isotope-dilution, thermal emission method is sufficient to meet the needs of the Uranium Resources Evaluation (URE) project. A single analyst can analyze in excess of 50 samples per day, including all preparation and instrument time. This analysis rate will meet the economic constraints of the URE analytical program.
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:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993-10 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book Improved Sample Utilization in Thermal Ionization Mass Spectrometry Isotope Ratio Measurements written by Matthew Louis Baruzzini and published by . This book was released on 2017 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: The precise and accurate determination of isotopic composition in nuclear forensic samples is vital for assessing origin, intended use and process history. Thermal ionization mass spectrometry (TIMS) is widely accepted as the gold standard for high performance isotopic measurements and has long served as the workhorse in the isotopic ratio determination of nuclear materials. Nuclear forensic and safeguard specialists have relied heavily on such methods for both routine and atypical efforts. Despite widespread use, TIMS methods for the assay of actinide systems continue to be hindered by poor ionization efficiency, often less than tenths of a percent; the majority of a sample is not measured. This represents a growing challenge in addressing next-generation nuclear detection needs by limiting the ability to analyze ultra-trace quantities of high priority elements that could potentially provide critical nuclear forensic signatures. Porous ion emitter (PIE) thermal ion sources were developed in response to the growing need for new TIMS ion source technologies. By simultaneously incorporating multiple, previously developed strategies for improved ionization efficiency, PIEs have proven to be simple to implement, straightforward approach to boosting ion yield. This work serves to expand the use of PIE techniques for the analysis of trace quantities of plutonium and americium. PIEs exhibited superior plutonium and americium ion yields when compared to direct filament loading and the resin bead technique, one of the most efficient methods for actinide analysis, at similar mass loading levels. Initial attempts at altering PIE composition for the analysis of plutonium proved to enhance sample utilization even further. Preliminary investigations of the instrumental fractionation behavior of plutonium and uranium analyzed via PIE methods were conducted. Data collected during these initial trial indicate that PIEs fractionate in a consistent, reproducible manner; a necessity for high precision isotope ratio measurements. Ultimately, PIEs methods were applied for the age determination of various uranium isotopic standards. PIEs did not exhibit significant advantages for the determination of model ages when compared to traditional filaments; however, this trial was able to provide valuable insight for guiding future investigations.
Download or read book A Versatile Six inch Radius Mass Spectrometer for Isotopic Analysis of Solids Liquids Or Gases written by H. O. Finley and published by . This book was released on 1963 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rapid Mass Spectrometry Method for Uranium and Plutonium written by and published by . This book was released on 2001 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new, rapid sample preparation method to improve the assay of uranium and plutonium by mass spectrometry has been developed at the Westinghouse Savannah River Site (SRS). The method is applied to the analysis of mixed plutonium-uranium oxide materials but can be applied to low-level mass spectrometry analyses as well. The new method uses a single extraction chromatographic column to separate and purify both uranium and plutonium for isotopic assay by thermal ionization mass spectrometry. A dual uranium/plutonium spike isotope dilution technique is used to allow rapid analysis of uranium/plutonium content and isotopics. A single UTEVA Resin column is utilized to simultaneously separate both uranium and plutonium from the sample matrix. The plutonium and uranium can rapidly removed from the column separately or eluted together for analysis. This new method combines sample preparation into a single, effective separation step that significantly reduces sample preparation time and costs.
Download or read book Modern Isotope Ratio Mass Spectrometry written by I. T. Platzner and published by John Wiley & Sons. This book was released on 1997-10-22 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: I. T. Platzner Atomic Energy Commission, Israel Including contributions from instrument manufacturers! Geological aging, chemical reaction mechanism studies, determination of atomic weights and investigation of metabolic pathways-these are all examples of the truly diverse nature of isotope ratio mass spectrometry (IRMS). With applications in fields as far apart as analytical chemistry and astronomy, geochemistry and biomedical science, it is little wonder that this technique is becoming increasingly popular. In Modern Isotope Ratio Mass Spectrometry,the first comprehensive book written on the subject for twenty-five years, examples from all these areas, and many more,are given. All modern developments in this fascinating field are discussed with special attention paid to technical details and instrumentation. Features of the book include: * comprehensive element-by-element review including 94 elements * applications chapter which stresses multi-disciplinary nature of subject * instrumentation chapter with contributions from three leading industrialists on state-of-the-art instrumentation
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A World Without Sample Preparation written by and published by . This book was released on 2009 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: We are developing highly sensitive, highly discriminating laser-based techniques for rapid determination of isotopic compositions. Rapid command of such information is critical to assessment of the origin and history of nuclear materials, particularly in post-detonation scenarios.
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1977 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book TID written by and published by . This book was released on 1956 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Inorganic Mass Spectrometry written by Sabine Becker and published by John Wiley & Sons. This book was released on 2008-02-28 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing an exhaustive review of this topic, Inorganic Mass Spectrometry: Principles and Applications provides details on all aspects of inorganic mass spectrometry, from a historical overview of the topic to the principles and functions of mass separation and ion detection systems. Offering a comprehensive treatment of inorganic mass spectrometry, topics covered include: Recent developments in instrumentation Developing analytical techniques for measurements of trace and ultratrace impurities in different materials This broad textbook in inorganic mass spectrometry, presents the most important mass spectrometric techniques used in all fields of analytical chemistry. By covering recent developments and advances in all fields of inorganic mass spectrometry, this text provides researchers and students with information to answer any questions on this topic as well as providing the basic fundamentals for understanding this potentially complex, but increasingly relevant subject.
Download or read book Mass Spectra and Isotopes written by Francis William Aston and published by . This book was released on 1942 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
