Download or read book Quantitative Nondispersive X ray Fluorescence Analysis of Highly Radioactive Samples for Uranium and Plutonium Concentration written by and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transmission corrected X ray Fluorescence Analysis of Uranium and Plutonium Solutions Using a Dual Transmission Source written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The energy-dispersive x-ray fluorescence analysis (XRFA) technique has been implemented at several spent nuclear fuel reprocessing facilities for nondestructive measurements of uranium and/or plutonium concentrations in process streams and product storage tanks. An important factor in these quantitative measurements is the absorption of the fluoresced x-rays by the solution matrix, which must be taken into account to accurately quantify the U or Pu concentrations. We describe a new, accurate method using a dual transmission source of Gd-153 and Co-57 to correct for matrix effects. Results of measurements on uranium and plutonium solution standards show the methodology to be better than 0.5%, which includes statistical precision, over the concentration range from 1 to 250 g/l. 5 refs., 4 figs., 3 tabs.

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1973 with total page 2006 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 1979 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Remote Analyses of Highly Radioactive Samples by X ray Fluorescence written by and published by . This book was released on 1991 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook of Practical X Ray Fluorescence Analysis written by Burkhard Beckhoff and published by Springer Science & Business Media. This book was released on 2007-05-18 with total page 897 pages. Available in PDF, EPUB and Kindle. Book excerpt: X-Ray fluorescence analysis is an established technique for non-destructive elemental materials analysis. This book gives a user-oriented practical guidance to the application of this method. The book gives a survey of the theoretical fundamentals, analytical instrumentation, software for data processing, various excitation regimes including gracing incidents and microfocus measurements, quantitative analysis, applications in routine and micro analysis, mineralogy, biology, medicine, criminal investigations, archeology, metallurgy, abrasion, microelectronics, environmental air and water analysis. This book is the bible of X-Ray fluorescence analysis. It gives the basic knowledge on this technique, information on analytical equipment and guides the reader to the various applications. It appeals to researchers, analytically active engineers and advanced students.

Download or read book Nondestructive Energy dispersive X ray Fluorescence Analysis of Product stream Concentrations from Reprocessed LWR Fuels written by David Conrad Camp and published by . This book was released on 1979 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wavelength Dispersive X ray Fluorescence Analysis of Actinides in Dissolved Nuclear Fuels written by and published by . This book was released on 2015 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is an urgent need for an instrument that can quickly measure the concentration of Plutonium and other Actinides mixed with Uranium in liquids containing dissolved spent fuel rods. Parallax Research, Incorporated proposes to develop an x-ray spectrometer capable of measuring U, Np and Pu in dissolved nuclear fuel rod material to less than 10 ppm levels to aid in material process control for these nuclear materials. Due to system noise produced by high radioactivity, previous x-ray spectrometers were not capable of low level measurements but the system Parallax proposed has no direct path for undesired radiation to get to the detector and the detector in the proposed device is well shielded from scatter and has very low dark current. In addition, the proposed spectrometer could measure these three elements simultaneously, also measuring background positions with an energy resolution of roughly 100 eV making it possible to see a small amount of Pu that would be hidden under the tail of the U peak in energy dispersive spectrometers. Another nearly identical spectrometer could be used to target Am and Cm if necessary. The proposed spectrometer needs only a tiny sample of roughly 1 micro-liter (1 mm3) and the measurement can be done with the liquid flowing in a radiation and chemical immune quartz capillary protected by a stainless steel rod making it possible to continuously monitor the liquid or to use a capillary manifold to measure other liquid streams. Unlike other methods such as mass spectroscopy where the sample must be taken to a remote facility and might take days for turn-around, the proposed measurement should take less than an hour. This spectrometer could enable near real-time measurement of U, Pu and Np in dilute dissolved spent nuclear fuel rod streams.

Download or read book Total Reflection X Ray Fluorescence Analysis and Related Methods written by Reinhold Klockenkämper and published by John Wiley & Sons. This book was released on 2015-01-27 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explores the uses of TXRF in micro- and trace analysis, and in surface- and near-surface-layer analysis • Pinpoints new applications of TRXF in different fields of biology, biomonitoring, material and life sciences, medicine, toxicology, forensics, art history, and archaeometry • Updated and detailed sections on sample preparation taking into account nano- and picoliter techniques • Offers helpful tips on performing analyses, including sample preparations, and spectra recording and interpretation • Includes some 700 references for further study

Download or read book Analytical Methods for Safeguards and Accountability Measurements of Special Nuclear Materials written by H. Thomas Yolken and published by . This book was released on 1978 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Uranium Analysis by Monochromatic X ray Absorption written by Wallace B. Wright and published by . This book was released on 1955 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Microscopic X Ray Fluorescence Analysis written by Koen H. A. Janssens and published by . This book was released on 2000-06-15 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: Table of contents

Download or read book On line Determinations of Uranium and Plutonium Process and Product stream Concentrations by Energy dispersive X ray Fluorescence Analysis written by David Conrad Camp and published by . This book was released on 1979 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Principles of Quantitative X ray Fluorescence Analysis written by R. Tertian and published by John Wiley & Sons. This book was released on 1982 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Accessions of Unlimited Distribution Reports written by and published by . This book was released on 1973-11-02 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nondestructive Energy dispersive X ray Fluorescence Analysis of Product Stream Concentrations from Reprocessed Nuclear Fuels written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy-dispersive x-ray fluorescence analysis (XRFA) can be used to measure nondestructively pure and mixed U/Pu concentrations in process streams and hold tank solutions. The 122-keV gamma ray from 57Co excites the actinide K x rays which are detected by a HPGe detector. A computer- and disk-based analyzer system provides capability for making on-stream analyses, and the noninvasive measurement is easily adapted directly to appropriate sized pipes used in a chemical reprocessing plant. Measurement times depend on concentration and purpose but vary from 100 to 500s for process control of strong to weak solutions. Accountability measurements require better accuracy thus more time; and for solutions containing plutonium, require a measurement of the solution radioactivity made with an automatic shutter that eclipses the two exciting sources. Plutonium isotopic abundances can also be obtained. Concentrations in single or dual element solutions from less than 1 g/l to over 200 g/l are determined to an accuracy of 0.2% after calibration of the system. For mixed solutions the unknown ratio of U to Pu is linearly related to the net U/Pu K x-ray intensities. Concentration values for ratios different than the calibration ratio require only small corrections to the values derived from a calibration polynomial. Minor fission product contamination does not prevent concentration determinations by XRFA. The computer-based system also allows real-time dynamic concentration measurements to be made.

Download or read book Quantitative X Ray Spectrometry written by Ron Jenkins and published by CRC Press. This book was released on 1995-04-26 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work covers important aspects of X-ray spectrometry, from basic principles to the selection of instrument parameters and sample preparation. This edition explicates the use of combined X-ray fluorescence and X-ray diffraction data, and features new applications in environmental studies, forensic science, archeometry and the analysis of metals