Download or read book Results from an Interlaboratory Exercise on the Determination of Plutonium Isotopic Ratios by Gamma Spectrometry written by H. Ottmar and published by . This book was released on 1981 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Results form an interlaboratory exercise on the determination of plutionium isotopic ratios by gamma spectrometry written by H. Ottmar and published by . This book was released on 1981 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Determination of Plutonium Isotopic Ratios by Using Low energy Gamma ray Spectroscopy written by and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A nondestructive gamma-ray technique has been developed to determine plutonium isotopic ratios. The technique is based on the high-intensity, low-energy gamma rays at 43.48, 45.23, 51.63, 59.54, and 64.83 keV for 238Pu, 24°Pu, 239Pu, 241Am, and 241Pu, respectively. The results demonstrate that this technique can accurately measure plutonium samples in a timely manner and in a wide range of masses, isotopic contents, chemical forms, and ages from chemical processing.

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 1993 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Determination of Plutonium Isotopic Composition by Gamma ray Spectroscopy written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We discuss the general approach, computerized data analysis methods, and results of measurements used to determine the isotopic composition of plutonium by gamma-ray spectroscopy. The simple techniques are designed to be applicable to samples of arbitrary size, geometry, age, chemical, and isotopic composition. The combination of the gamma spectroscopic measurement of isotopic composition coupled with calorimetric measurement of total sample power is shown to give a totally nondestructive determination of sample plutonium mass with a precision of 0.6% for 1000-g samples of PuO2 with 12% 24°Pu content. The precision of isotopic measurements depends upon many factors, including sample size, sample geometry, and isotopic content. Typical ranges are found to be 238Pu, 1 to 10%; 239Pu, 0.1 to 0.5%; 24°Pu, 2 to 5%; 241Pu, 0.3 to 0.7%; 242Pu (determined by isotopic correlation); and 241Am, 0.2 to 10%.

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 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 Annual Symposium on Safeguards and Nuclear Material Management written by and published by . This book was released on 1989 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Simulation Study of Plutonium Gamma Ray Groupings for Isotopic Ratio Determination written by and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Isotopic Ratios and Effective Power Determined by Gamma ray Spectroscopy Vs Mass Spectroscopy for Molten Salt Extraction Residues written by and published by . This book was released on 1990 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Impure plutonium metal is routinely processed by molten salt extraction (MSE) to reduce the amount of americium in the metal product. Throughput at various facilities where similar processes are performed has made it essential to evaluate uncertainties and possible discrepancies in the analyses of these difficult MSE materials. In an effort to evaluate the plutonium isotopic ratios and americium concentrations obtained from gamma-ray spectral data analyzed by the computer code GRPAUT, measurements were made on ten MSE salts as received and after pulverization and blending. These results were then compared to the specific powers obtained from isotopic ratios determined by mass spectrometry on these same ten samples. Americium values ranged from a few thousand parts-per-million of total plutonium to greater than 50,000 ppM. Our results indicate a small discrepancy between specific powers as determined by GRPAUT on as received'' vs pulverized and blended MSE salts. The specific powers obtained via GRPAUT on the pulverized salts agree somewhat better with specific powers obtained from the mass spectroscopy data. This work may indicate that a small discrepancy exists in the specific powers by using GRPAUT on heterogeneous, high americium samples. 5 refs., 6 tabs.

Download or read book Plutonium Isotopic Analysis of Nondescript Samples by Gamma ray Spectrometry written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A gamma-ray spectrometry system has been developed for the Savannah River Plant that when coupled with calorimetry will allow a complete nondestructive assay of various plutonium product and waste materials contained in sealed cans. The computer-based system employs two germanium detectors to obtain spectral information that is analyzed in a unique fashion to obtain plutonium isotopic ratios.

Download or read book Determination of Plutonium Concentration and Isotopic Compositions by Isotope Dilution Gamma ray Spectroscopy on Resin Beads written by T. K. Li and published by . This book was released on 1990 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Determination of Plutonium Isotopic Abundances by Gamma ray Spectrometry written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mandskoret S nderborg 1921 1931 Festskrift Udgivet i anledning af 10 Aaret for Foreningens Stiftelse written by and published by . This book was released on 1931 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Standard Test Method for Determination of Plutonium Isotopic Composition by Gamma Ray Spectrometry written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gamma ray Isotopic Ratio Measurements for the Plutonium Inventory Verification Program written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Plutonium Inventory Verification Program at Mound Laboratory provides a nondestructive means of assaying bulk plutonium-bearing material. The assay is performed by combining the calorimetrically determined heat output of the sample and the relative abundances of the heat-producing isotopes. This report describes the method used for the nondestructive determination of plutonium-238, -240, -241 and americium-241 relative to plutonium-239 using gamma-ray spectroscopy for 93 percent plutonium-239 material. Comparison of chemical data on aliquots of samples to the nondestructive data shows accuracies of +-7 percent for 238Pu/239Pu, +-15 percent for 24°Pu/239Pu, +- 3 percent for 241Pu/239Pu, and +-7 percent for 241Am/239Pu.