Download or read book Nuclear Resonance Fluorescence in Xenon 131 written by Marshall Berman and published by . This book was released on 1968 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1973 with total page 1256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Resonance Fluorescence in 55Mn written by Dennis A. Justice and published by . This book was released on 1974 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1964 with total page 1528 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Resonance Fluorescence in 31P and 55Mn written by Ronald J. Foust and published by . This book was released on 1969 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Resonance Fluorescence in 27Al written by Michael J. Parrott and published by . This book was released on 1977 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Resonance Fluorescence in 206 207 208 Pb and 209 Bi written by Daniel Frederick Coope and published by . This book was released on 1975 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Resonance Fluorescence in 240Pu written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Resonance Fluorescence States in 239Pu written by and published by . This book was released on 2008 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measurements of Nuclear Resonance Fluorescence on the 1 27 Mev Level of Sn p116 s written by John M. Gonser and published by . This book was released on 1964 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Resonance Fluorescence Experiments on 1hn2 1hn0 1hn4 1hn 1hn2 1hn0 1hn6 1hn 1hn2 1hn0 1hn7 1hn 1hn2 1hn0 1hn8Pb Up to 6 75 MeV written by and published by . This book was released on 2003 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Resonance Fluorescence with Bremsstrahlung written by Raymond George Arnold and published by . This book was released on 1972 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Resonance Fluorescence for Materials Assay written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper discusses the use of nuclear resonance fluorescence (NRF) techniques for the isotopic and quantitative assaying of radioactive material. Potential applications include age-dating of an unknown radioactive source, pre- and post-detonation nuclear forensics, and safeguards for nuclear fuel cycles Examples of age-dating a strong radioactive source and assaying a spent fuel pin are discussed. The modeling work has ben performed with the Monte Carlo radiation transport computer code MCNPX, and the capability to simulate NRF has bee added to the code. Discussed are the limitations in MCNPX's photon transport physics for accurately describing photon scattering processes that are important contributions to the background and impact the applicability of the NRF assay technique.

Download or read book Nuclear Resonance Fluorescence for Safeguards Applications written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In nuclear resonance fluorescence (NRF) measurements, resonances are excited by an external photon beam leading to the emission of [gamma] rays with specific energies that are characteristic of the emitting isotope. The promise of NRF as a non-destructive analysis technique (NDA) in safeguards applications lies in its potential to directly quantify a specific isotope in an assay target without the need for unfolding the combined responses of several fissile isotopes as often required by other NDA methods. The use of NRF for detection of sensitive nuclear materials and other contraband has been researched in the past. In the safeguards applications considered here one has to go beyond mere detection and precisely quantify the isotopic content, a challenge that is discussed throughout this report. Basic NRF measurement methods, instrumentation, and the analytical calculation of NRF signal strengths are described in Section 2. Well understood modeling and simulation tools are needed for assessing the potential of NRF for safeguards and for designing measurement systems. All our simulations were performed with the radiation transport code MCNPX, a code that is widely used in the safeguards community. Our initial studies showed that MCNPX grossly underestimated the elastically scattered background at backwards angles due to an incorrect treatment of Rayleigh scattering. While new, corrected calculations based on ENDF form factors showed much better agreement with experimental data for the elastic scattering of photons on an uranium target, the elastic backscatter is still not rigorously treated. Photonuclear scattering processes (nuclear Thomson, Delbruck and Giant Dipole Resonance scattering), which are expected to play an important role at higher energies, are not yet included. These missing elastic scattering contributions were studied and their importance evaluated evaluated against data found in the literature as discussed in Section 3. A transmission experiment was performed in September 2009 to test and demonstrate the applicability of the method to the quantitative measurement of an isotope of interest embedded in a thick target. The experiment, data analysis, and results are described in Section 4. The broad goal of our NRF studies is to assess the potential of the technique in safeguards applications. Three examples are analyzed in Section 5: the isotopic assay of spent nuclear fuel (SNF), the measurement of 235U enrichment in UF6 cylinders, and the determination of 239Pu in mixed oxide (MOX) fuel. The study of NRF for the assay of SNF assemblies was supported by the Next Generation Safeguards Initiative (NGSI) of the U.S. Department of Energy as part of a large multi-lab/university effort to quantify the plutonium (Pu) mass in spent nuclear fuel assemblies and to detect the diversion of pins with non-destructive assay (NDA) methods. NRF is one of 14 NDA techniques being researched. The methodology for performing and analyzing quantitative NRF measurements was developed for determining Pu mass in SNF and is extensively discussed in this report. The same methodology was applied to the assessment of NRF for the measurement of 235U enrichment and the determination of 239Pu in MOX fuel. The analysis centers on determining suitable NRF measurement methods, measurement capabilities that could be realized with currently available instrumentation, and photon source and detector requirements for achieving useful NDA capabilities.

Download or read book Data Summaries written by Oak Ridge National Laboratory and published by . This book was released on 1968 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Resonance Fluorescence in Si28 written by Jean L. Ryan and published by . This book was released on 1963 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Technological Step Towards Threat Reduction written by James Lawrence MacFarland and published by . This book was released on 2009 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: