Showing 81 - 100 results of 169 for search '"radiation transport"', query time: 0.13s Refine Results
  1. 81

    A novel method to measure ion density in ICF experiments using X-ray spectroscopy of cylindrical tracers by Pérez-Callejo, G, Barrios, MA, Liedahl, DA, Rose, S, Wark, JS

    Published 2020
    “…In this method a microdot of a mid-Z material is placed inside the hohlraum and its K-shell emission spectrum is used to determine the plasma temperature. However, radiation transport of optically thick lines acting within the cylindrical dot geometry influences the outgoing spectral distribution in a manner that depends on the viewing angle. …”
    Journal article
  2. 82

    Attenuation of beta radiation in granular matrices: implications for trapped-charge dating by A. C. Cunningham, J.-P. Buylaert, A. S. Murray

    Published 2022-08-01
    “…We account for these effects using an expanded model of beta attenuation – including the effect of moisture – and validate the model against Monte Carlo radiation transport simulations within a geometry of packed spheres.…”
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    Article
  3. 83

    Data Assimilation using Non-invasive Monte Carlo Sensitivity Analysis of Reactor Kinetics Parameters by Kleedtke N., Hutchinson J., Cutler T., Michaud I., Rising M.E., Hua M., Alwin J., Grosskopf M.J., Vander Wiel S., Neudecker D., Thompson N.

    Published 2023-01-01
    “…Accurately predicting the criticality of an experiment before interacting with the experimental components is very important for criticality safety. Radiation transport software can be utilized to calculate the effective neutron multiplication factor of a nuclear system. …”
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    Article
  4. 84

    Simulating Ionising Radiation in Gazebo for Robotic Nuclear Inspection Challenges by Thomas Wright, Andrew West, Mauro Licata, Nick Hawes, Barry Lennox

    Published 2021-07-01
    “…Interaction of gamma radiation sources within the environment, as well as the response of simulated detectors attached to mobile robots, is verified against the MCNP6 Monte Carlo radiation transport code. The benefits these tools provide are highlighted by inclusion of three real-world nuclear sector environments, providing the robotics community with opportunities to assess the capabilities of robotic systems and autonomous functionalities.…”
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    Article
  5. 85

    Dose-rate constant and air-kerma strength evaluation of a new 125I brachytherapy source using Monte Carlo by Camila de Oliveira Primo

    Published 2021-04-01
    “…In this study, dose-rate constant and air-kerma strength parameters were simulated using the Monte Carlo method radiation transport code MCNP4C. The air-kerma strength is obtained from an ideal modeled seed, since its actual value should be measured for seeds individually in a specialized lab with a Wide-Angle Free-Air Chamber (WAFAC). …”
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    Article
  6. 86

    Impact through versatility: Patterns of in vivo dosimetry utilization with TLD across a large multi-site radiotherapy department by Peta Lonski, Tomas Kron, Tomas Kron, Tomas Kron

    Published 2022-10-01
    “…A skilled operator with knowledge of TLD physics, treatment planning system (TPS) dose calculation algorithms and radiation transport proved to be essential for appropriate interpretation of TLD results particularly in complex radiation delivery scenarios. …”
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    Article
  7. 87

    Influence of Gold Nanoparticle Shape and Single-Cell Localization on Energy Deposition Efficiency and Irradiation Specificity in Photon Radiotherapy by Slobodan Milutinović, Mila Pandurović, Miloš Vujisić

    Published 2023-01-01
    “…Energy deposition patterns are calculated with nanoscale accuracy through Monte Carlo simulations of radiation transport, which are optimized to accommodate a structured geometrical representation of the region loaded with AuNPs, i.e., to allow discrete modeling of individual nanoparticles. …”
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    Article
  8. 88

    Mechanistic model of radiotherapy-induced lung fibrosis using coupled 3D agent-based and Monte Carlo simulations by Nicolò Cogno, Roman Bauer, Marco Durante

    Published 2024-02-01
    “…However, Monte Carlo tools remain the state-of-the-art for modelling radiation transport and provide measurements of the delivered dose with unmatched precision. …”
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    Article
  9. 89

    Calculation of X-ray spectra characteristics and kerma to personal dose equivalent Hp(10) conversion coefficients: Experimental approach and Monte Carlo modeling by A. Arectout, I. Zidouh, Y. Sadeq, M. Azougagh, B. Maroufi, E. Chakir, H. Boukhal

    Published 2022-01-01
    “…The GAMOS (Geant4-based Architecture for Medicine-Oriented Simulations) radiation transport Monte Carlo toolkit was employed to simulate the production of X-ray spectra. …”
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    Article
  10. 90

    The Lunar Radiation Environment: Comparisons between PHITS, HETC-HEDS, and the CRaTER Instrument by Fahad A. Zaman, Lawrence W. Townsend, Wouter C. de Wet, Naser T. Burahmah

    Published 2021-07-01
    “…However, the complex variety of energies and particle types constituting the space radiation environment makes the process of replicating such environment very difficult in Earth-based laboratories. Radiation transport codes provide a practical alternative covering a wider range of particle energy, angle, and type than can be experimentally attainable. …”
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    Article
  11. 91

    Machine-Learning-Assisted Analysis of Visible Spectroscopy in Pulsed-Power-Driven Plasmas by Datta, Rishabh, Ahmed, Faez, Hare, Jack D.

    Published 2024
    “…We use machine-learning (ML) models to predict ion density and electron temperature from visible emission spectra, in a high-energy density pulsed-power-driven aluminum plasma, generated by an exploding wire array. Radiation transport simulations, which use spectral emissivity and opacity values generated using the collisional-radiative code PrismSPECT, are used to determine the spectral intensity generated by the plasma along the spectrometer’s line of sight (LOS). …”
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    Article
  12. 92

    Tabulation of organ dose conversion factors for terrestrial radioactivity monitoring program by Sanusi, M. S. M., Hassan, W. M. S. W., Hashim, S., Ramli, A. T.

    Published 2021
    “…For other physical quantities, for example organ absorbed dose and organ equivalent dose, the measurement is impossible to be performed and can only be computed using Monte Carlo radiation transport simulations. In the past, most of the works only focused on calculating air-kerma-to-effective dose conversion factors. …”
    Article
  13. 93

    The proposal and realization on more exact modeling of COIL performance by Shouxian Li, Xiaojian Shu, Yanyi Du, Hua Su, Yan Li, Zhen Yu

    Published 2013-03-01
    “…To model the complete COIL lasing interaction, a three-dimensional formulation of the fluid dynamics, species continuity and radiation transport equations is necessary. The computational effort to calculate the flow field over the entire nozzle bank with a grid fine enough to resolve the injection holes is so large as to preclude doing the calculation. …”
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    Article
  14. 94

    Optimisation of the Tripathi model using a nuclear reaction cross-section database by F Luoni, C A Reidel, F Horst, U Weber, M Durante

    Published 2023-01-01
    “…Nuclear reaction cross-sections are an essential ingredient to reliable deterministic and stochastic radiation transport codes used for radiation protection in space and heavy-ion therapy applications. …”
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    Article
  15. 95

    METODOLOGÍA PARA DEFINIR ESQUEMAS DE IRRADIACIÓN A PARTIR DEARCHIVOS DE ESPACIOS DE FASE PARA SIMULAR PLANIFICACIÓN EN RADIOTERAPIA by R. Meilij, E. Aon, M. Valente

    Published 2022-07-01
    “…This paper reports on a novel methodology developed to calculate spatial distributions of doses corresponding to stereotactic irradiations, incorporating arc-irradiation schemes and being representative of treatment planning, by meansofPhase-Spacefiles; and using Monte Carlo simulations to perform radiation transport. The methodology was implemented with the FLUKA code and was applied to a situation of clinical complexity using tomographic images of a standardized dosimetry control phantom for stereotactic radiosurgery. …”
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    Article
  16. 96

    Relative dose-response from solid-state and gel dosimeters through Monte Carlo simulations by Ney Souza Neto, Ana Quevedo, Mirko Salomón Alva-Sánchez, Thatiane Pianoschi

    Published 2022-09-01
    “…Even the differences showed for both codes, especially for lower energy, due to cross-the section database that implied the interaction probability for each Monte Carlo code, this method has been widely used to model radiation transport in several applications in medical physics, especially in dosimetry.    …”
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    Article
  17. 97

    A new ground level neutron monitor for space weather assessment by Michael D. Aspinall, Tilly L. Alton, Cory L. Binnersley, Steven C. Bradnam, Stephen Croft, Malcolm J. Joyce, Dakalo Mashao, Lee W. Packer, Tony Turner, James A. Wild

    Published 2024-03-01
    “…The first-of-its-kind instrument, named the NM-2023 after the year it was standardised and following convention, will be installed at a United Kingdom Meteorological Office observatory (expected completion mid 2024) and will reintroduce such monitoring in the UK for the first time since ca. 1984. Monte Carlo radiation transport code is used for the development and application of parameterised models to investigate alternative neutron detectors, their location and bulk material geometry in a realistic cosmic ray neutron field. …”
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    Article
  18. 98

    Validating a virtual source model based in Monte Carlo method for profiles and percent depth doses calculation by Renata Aline Del Nero, Marcos Vinicius Nakaoka Nakandakari, Hélio Yoriyaz

    Published 2019-02-01
    “… The Monte Carlo method for radiation transport has been adapted for medical physics application. …”
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    Article
  19. 99

    ANALYTICAL AND MONTE CARLO SIMULATION STUDY OF THE INFLUENCE OFSTRONG MAGNETIC FIELDS ON THE PATH OF ELECTRONS WITH ENERGYTYPICAL OF MRI-LINAC RADIOTHERAPY by A. Gayol, M. Valente

    Published 2022-04-01
    “…Both analytical and numerical methods have proven to be suitable for describing radiation transport and interactions. The standard Boltzmann formalism derived from statistical mechanics requires to be specifically re-formulated to account for the interactions with external electromagnetic fields. …”
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    Article
  20. 100

    Hydrodynamic Mixing of Accretion Disk Outflows in Collapsars: Implications for r-process Signatures by Jennifer Barnes, Paul C. Duffell

    Published 2023-01-01
    “…We use semianalytic radiation transport to connect hydrodynamics to electromagnetic observables, allowing us to assess the mixing level at which the presence of r -process material can be diagnosed from SN light curves. …”
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    Article