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Monte Carlo Code Predicting Models For Neutron Activation Analysis And Explorative Study Of Large Sample Neutron Activation Analysis
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Book Synopsis Monte Carlo Code Predicting Models for Neutron Activation Analysis and Explorative Study of Large Sample Neutron Activation Analysis by : Christian Amevi Adjei
Download or read book Monte Carlo Code Predicting Models for Neutron Activation Analysis and Explorative Study of Large Sample Neutron Activation Analysis written by Christian Amevi Adjei and published by . This book was released on 2015 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Neutron Field Perturbation in Large Sample Activation Analysis Using Monte Carlo Code by : Rosnie Akang
Download or read book Neutron Field Perturbation in Large Sample Activation Analysis Using Monte Carlo Code written by Rosnie Akang and published by . This book was released on 2010 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Analog Linear Interpolation Approach for Monte Carlo Simulation of Prompt Gamma-Ray Neutron Activation Analysis by :
Download or read book The Analog Linear Interpolation Approach for Monte Carlo Simulation of Prompt Gamma-Ray Neutron Activation Analysis written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Monte Carlo code (CEARPGA I) was developed to generate the elemental library spectra required for implementing the Monte Carlo Library Least-Squares algorithm for prompt gamma-ray neutron activation analysis (PGNAA). The existing big weight problem in which a few histories yield very large weights with very large variance has been investigated thoroughly. It has been found that the expected value splitting technique, a powerful variance reduction technique used in the code is the primary cause of this problem. Two Monte Carlo simulation approaches have been investigated to eliminate the big weight problem while still maintaining high efficiency. They are 1) score importance map with batch tracking and 2) analog linear interpolation. Both approaches were implemented separately in the corresponding Monte Carlo codes on the basis of CEARPGA I code and demonstrated to be feasible for solving the big weight problem. The analog linear interpolation approach was selected to incorporate into the new CEARPGA Monte Carlo code (CEARPGA II). A comparison of the results obtained by both CEAEPGA I and CEARPGA II codes as well as experimentally measured data shows that the big weight problem has been successfully eliminated, the accuracy of the simulation has improved greatly, and the simulated results agree very well with the measured data. In addition, some other important improvements have been made in the CEARPGA II to make it more accurate, efficient and powerful, including: 1) tracking pair production gamma rays, 2) incorporating neutron activation background spectra, 3) generating natural background spectra, 4) taking into account the non-linearity of NaI detectors, and 5) adopting a general geometry package.
Book Synopsis Monte Carlo Neutronic Simulations for a New Approach to Parametric INAA and Mo-99 Production Feasibility at MURR by : Nickie J. J. Peters
Download or read book Monte Carlo Neutronic Simulations for a New Approach to Parametric INAA and Mo-99 Production Feasibility at MURR written by Nickie J. J. Peters and published by . This book was released on 2009 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: A novel approach to parametric instrumental neutron activation analysis at MURR has been established. In particular, a detailed MCNP5 steady-state model of the MURR core was developed. The model, which was based on the most recent continuous-energy neutron data from the ENDF and JEFF neutron libraries, was used to compute the local continuous-energy neutron flux distribution. By coupling the computed flux spectrum to the energy-dependent ([nu], [upsilon]) cross-sections for a range of nuclides, their intrinsic reaction rates were predicted in irradiation channel ROW2. The model was initially benchmarked by measuring the intrinsic ([nu], [upsilon]) reaction rates for a set of mostly dilute single-element standards in ROW2. Predictions of the intrinsic reaction rates for many nuclides, including those with high epithermal sensitivity and non-1/v behavior, are within [plus-minus] 5% of the measured values. Using predicted ([nu], [upsilon]) reaction-rates, trace-elemental concentrations were determined in NIST standard reference materials, bovine liver, obsidian and coal fly ash. The agreements with the certified concentrations were generally within [plus-minus]5%. The new methodology has produced better results for a greater number of elements than [kappa]0. The model was also combined with MONTEBURNS and ORIGEN to test the feasibility of Mo99production at MURR from fissioning LEU. Results from a 5-gram low-enriched uranium target show predictions of Mo99 end-of-irradiation yields are within 3% of the measured value. This dissertation entails a complete study of the MCNP5 model and the new neutron activation analysis method.
Book Synopsis Development of Monte Carlo Code for Coincidence Prompt Gamma-ray Neutron Activation Analysis by : Xiaogang Han
Download or read book Development of Monte Carlo Code for Coincidence Prompt Gamma-ray Neutron Activation Analysis written by Xiaogang Han and published by . This book was released on 2005 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keywords: PGNAA, Coincidence measurement, Monte Carlo, MCNP.
Book Synopsis Le Bastion de la foy chrestienne, propre povr rembarrer les ennemis de l'euangile by :
Download or read book Le Bastion de la foy chrestienne, propre povr rembarrer les ennemis de l'euangile written by and published by . This book was released on 1562 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monte Carlo Simulation of Correction Factors for Neutron Activation Foils by : Pham Ngoc Son
Download or read book Monte Carlo Simulation of Correction Factors for Neutron Activation Foils written by Pham Ngoc Son and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the conventional neutron activation analysis, the elemental concentrations are normally determined from the comparison ratios between the measured specific activities of the sample and the standard reference material. An advantage in the comparison ratio method is that the systematic error due to neutron self-shielding and multi-scattering effects is canceled out, and the correction factors can be ignored but the preparation of reference standards to match the same conditions with those of various samples is the main difficulty. In the modern trend of neutron activation analysis, the K0-standardization method has been developed and applied in almost all the NAA laboratories. An important research work in the procedure under this method is the characteristic information regarding the neutron source, such as thermal and epithermal neutron fluxes, and epithermal spectrum shape-factor. These neutron spectrum parameters are experimentally determined by using the activation foils, in which the corrections for all neutron effects cause systematic errors should be taken into account. Using the MCNP5 code, a well-known Monte Carlo simulation program, the results of correction factors of thermal, epithermal and resonance neutron self-shielding factors for Au, Co, Mn, W activation foils are presented in this chapter.
Book Synopsis Monte Carlo Modelling of Systems for the Neutron Activation Analysis of Aluminium in Vivo by : Sameer Sa Natto
Download or read book Monte Carlo Modelling of Systems for the Neutron Activation Analysis of Aluminium in Vivo written by Sameer Sa Natto and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monte Carlo Methods and Their Application to Neutron Transport Problems by : Jerome Spanier
Download or read book Monte Carlo Methods and Their Application to Neutron Transport Problems written by Jerome Spanier and published by . This book was released on 1959 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monte Carlo Modelling of Systems for the Neutron Activation Analysis of Aluminium in Vivo by : Sameer Sa Natto
Download or read book Monte Carlo Modelling of Systems for the Neutron Activation Analysis of Aluminium in Vivo written by Sameer Sa Natto and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Physics and Mathematical Analysis for the TUT-T5 Monte Carlo Code by : Jerome Spanier
Download or read book The Physics and Mathematical Analysis for the TUT-T5 Monte Carlo Code written by Jerome Spanier and published by . This book was released on 1960 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Monte Carlo Model for the Pulsed Neutron Activation Measurement Method for Flow in Large Pipes by : Waheedul Haq
Download or read book A Monte Carlo Model for the Pulsed Neutron Activation Measurement Method for Flow in Large Pipes written by Waheedul Haq and published by . This book was released on 1987 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monte Carlo Optimization of Coincidence Prompt Gamma-ray Neutron Activation Analysis by : Jiaxin Wang
Download or read book Monte Carlo Optimization of Coincidence Prompt Gamma-ray Neutron Activation Analysis written by Jiaxin Wang and published by . This book was released on 2011 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monte Carlo Studies of Neutron Transport in Cold Neutron Facilities by : Heikki Kalli
Download or read book Monte Carlo Studies of Neutron Transport in Cold Neutron Facilities written by Heikki Kalli and published by . This book was released on 1974 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monte Carlo N-Particle Simulations for Nuclear Detection and Safeguards by : John S. Hendricks
Download or read book Monte Carlo N-Particle Simulations for Nuclear Detection and Safeguards written by John S. Hendricks and published by Springer Nature. This book was released on 2022-09-27 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book is a pedagogical, examples-based guide to using the Monte Carlo N-Particle (MCNP®) code for nuclear safeguards and non-proliferation applications. The MCNP code, general-purpose software for particle transport simulations, is widely used in the field of nuclear safeguards and non-proliferation for numerous applications including detector design and calibration, and the study of scenarios such as measurement of fresh and spent fuel. This book fills a gap in the existing MCNP software literature by teaching MCNP software usage through detailed examples that were selected based on both student feedback and the real-world experience of the nuclear safeguards group at Los Alamos National Laboratory. MCNP input and output files are explained, and the technical details used in MCNP input file preparation are linked to the MCNP code manual. Benefiting from the authors’ decades of experience in MCNP simulation, this book is essential reading for students, academic researchers, and practitioners whose work in nuclear physics or nuclear engineering is related to non-proliferation or nuclear safeguards. Each chapter comes with downloadable input files for the user to easily reproduce the examples in the text.
Book Synopsis Monte Carlo Methods for Equilibrium Solutions in Neutron Multiplication by : E. L. Kaplan
Download or read book Monte Carlo Methods for Equilibrium Solutions in Neutron Multiplication written by E. L. Kaplan and published by . This book was released on 1958 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monte Carlo Studies of Gamma-ray and Neutron Transport in Infinite Homogeneous Media by : Theodore E. Fessler
Download or read book Monte Carlo Studies of Gamma-ray and Neutron Transport in Infinite Homogeneous Media written by Theodore E. Fessler and published by . This book was released on 1961 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
