The general purpose Monte Carlo N-particle radiation transport computer code (MCNP4C) was used for the simulation of x-ray spectra in diagnostic radiology and mammography. The electrons were transported until they slow down and stop in the target. Both bremsstrahlung and characteristic x-ray production were considered in this work. We focus on the simulation of various target/filter combination...

Spine fixation is required in cases such as congenital spinal curvatures, vertebral fractures, sagittal collapse over time, painful kyphosis, and bone load due to tumors. Although there are many methods the literature, most commonly used spine method with pedicle screws. In these cases, it known that screws frequently body. this study, how radiological exposure of column dose was evaluated by s...

Genetic algorithms (GA) are used to optimize the Fast Neutron Source (FNS) core fuel loading maximize a multiobjective function. The FNS has 150 material locations that can be loaded with one of three different materials resulting in over 3E+71 combinations. individual designs evaluated computationally intensive calls MCNP. To speed up optimization, convolutional neural networks (CNN) trained a...

Prompt-gamma activation analysis (PGAA) has been extended and validated to measure large irregularly shaped samples. The detailed sample geometry was implemented in the MCNP-model of setup accurate matrix-effect corrections were obtained.

The Paper describes basic information about MCNP calculations and experimental measurements at the VR-1 reactor and their evaluation. The preparation of calculations and verification of the experiments are integral part of the VR-1 reactor operation. The neutronics calculations and analyses are often necessary condition to gain the approval to experiments realization at the reactor VR-1. The pa...

This document presents the process for a new method developed characterization of delayed gamma-ray radiation fields in pulse reactors like Annular Core Research Reactor (ACRR). The environments used to test this ACRR Central Cavity were various standard irradiation configurations that amounts moderators and shielding. All environment same fission product source energy spectrum. required use si...