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Showing 1 to 8 of 8 for “"monte carlo transport code"”.
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On-node performance optimization of a Monte-Carlo transport code for leadership architectures
The tally system in Monte Carlo neutron transport codes accounts for a significant fraction of the total execution time. This project studied the tally performance of a Monte Carlo neutron transport code (i.e., OpenMC) and implemented several optimizations to address the major bottlenecks. First, a …
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Pulse Train Analysis Applied to the Re-Evaluation of Deadtime Correction Factors for Correlated Neutron Counting
… factors for correlated neutron counting. The Monte-Carlo transport code MCNPXTM was used to generate a time-stamped list of neutron captures in 3He. Event times were processed in software to create neutron pulse trains akin to list mode data. The action of multiplicity shift register (MSR) …
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Development of a low enrichment uranium core for the MIT reactor
… and using a full-core model of the MITR for the Monte-Carlo transport code MCNP to determine the effect on flux and reactivity. In addition, the use of different moderator and fuel dummy materials as well as fixed absorbers was evaluated to optimize the neutron fluxes, reactivity and neutron …
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Modern Rossi alpha measurements
… also examines the expected value of α using a Monte Carlo transport code, MCNP. MCNP determined the value of α at delayed critical to be 100048 ± 0.584 s-1. This result differs by 11.3% from the extrapolated value of α determined experimentally. When compared to systems with similar neutron …
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Neutron production in a spherical phantom aboard the international space station
… and a spherical phantom to simulate human body. Monte Carlo transport code was used to simulate the interaction of high energy protons and neutrons with the spherical phantom currently onboard ISS. A Monte Carlo model of the phantom has been built, and it consists of seven spherical layers …
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Target Design and Optimizations for Spent Fuel Transmutation
… enhance the transmutation efficiency. PHITS, a Monte Carlo transport code, is employed to computationally model the interactions between LLFP materials and the proton beam. In this thesis, PHITS is used to estimate the flux-energy spectrum and the number of atoms irradiated in the LLFP target …
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Self-consistent dynamical and radiative models of low-luminosity active galactic nuclei
… I first describe \grmonty, a fully relativistic Monte Carlo code for radiation transport that treats angle-dependent thermal synchrotron emission and absorption and Compton scattering essentially without approximation. One limitation of \grmonty\ is that it assumes the background emitting plasma …
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Monte Carlo Study of Replacing Californium in a Shuffler with a Neutron Generator
Made available in DSpace on 2017-07-06T18:56:13Z (GMT). No. of bitstreams: 3 Schear_Melissa_A_MS.pdf: 65935271 bytes, checksum: aaa779f29ee5339a2088319f92377b1e (MD5) Schear_Melissa_A_MS_ABS.pdf: 527862 bytes, checksum: d5ec7b1828cce07fd047910b7af06814 (MD5) license.txt: 4813 bytes, checksum: …