A Neutron Fluence Map of the Los Alamos National Laboratory Godiva IV Critical Assembly
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Jump to search filtersMethod for Calculating Delayed Gamma-Ray Response In the ACRR Central Cavity Using MCNP
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Method for calculating delayed gamma-ray response in the ACRR Central Cavity using MCNP
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MONTE CARLO PERTURBATION ANALYSIS OF FUEL TEMPERATURE VARIATIONS IN THE MCNP MODEL OF THE ANNULAR CORE RESEARCH REACTOR
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Monte Carlo Perturbation Analysis of Fuel Temperature Variations in the MCNP Model of the ACRR
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Thesis Proposal: Sensitivity analysis of temperature variations in the MCNP model of the ACRR Fuel during operations
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Method for calculating delayed gamma-ray response in the ACRR Central Cavity and FREC- II Cavity using MCNP
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Stochastic mixing method for sensitivity analysis of temperature variations in the MCNP model of the ACRR Fuel during operations
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Method for Calculating Delayed Gamma-Ray Response in the ACRR Central Cavity and FREC-II Cavity Using MCNP
This document presents the process for a new method developed for the characterization of the delayed gamma-ray radiation fields in pulse reactors like the Annular Core Research Reactor (ACRR) and the Fueled Ring External Cavity (FREC-II). The environments used to test this method in the ACRR were FF, LB44, PLG and CdPoly, and the environments used in the FREC-II were FF with rods-down, FF with rods-up, CdPoly with rods-down and CdPoly with rods-up. All environment configurations used the same fission product gamma-ray source energy spectrum. This method required the fission sites located in the MCNP KCODE source tapes. A FORTRAN script was written to translate and extract the coordinates for the fission sites. The 10K fission sites were then input it into an MCNP SOURCE mode script. Using a MATLAB script, a parametric analysis was done, and it helped determine that 10K fission sites are an appropriate number of coordinates to converge to the correct answer. The method gave excellent results and was tested in the ACRR, FREC-II and White Sands Missile Range (WSMR). This method can be applied to other pulse research reactors as well.
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