Sökning: "Monte Carlo simulation"

Visar resultat 36 - 40 av 337 avhandlingar innehållade orden Monte Carlo simulation.

  1. 36. Development of methods for evaluation and optimization of chest tomosynthesis

    Författare :Angelica Svalkvist; Göteborgs universitet; []
    Nyckelord :Chest tomosynthesis; Evaluation; Optimization; Simulation; Image Quality; Dosimetry; Dose reduction; Nodule simulation; Validation;

    Sammanfattning : Tomosynthesis is a low-dose technique that has attracted increasing interest from the medical imaging community during the past decade. Tomosynthesis refers to the technique of acquiring a number of projection radiographs using extremely low exposure over a limited angular range, and using these radiographs to reconstruct slices of the imaged object. LÄS MER

  3. 37. Dose Management in Diagnostic Radiology - application of the DICOM imaging standard and a Monte Carlo dose engine for exposure surveillance

    Författare :Hans-Erik Källman; Anders Ahnesjö; Hilde M. Olerud; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Radiology; metadata; DICOM; radiation safety; Monte Carlo; source model; patient model; optimization; justification; Medicinsk radiofysik; Medical Radiophysics;

    Sammanfattning : Ionizing radiation is used in diagnostic radiology with a large contribution to the health of the patients. The regulations to limit the detrimental effects, e.g. cancer induction, are based on recommendations from the International Commission on Radiological Protection (ICRP). LÄS MER

  4. 38. Benchmark of simulation of an ion guide for neutron-induced fission products

    Författare :Zhihao Gao; Andreas Solders; Johan Nyberg; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fission products; simulation; Geant4; GEF; MCNPX; neutron flux; gamma spectroscopy;

    Sammanfattning : Independent yield distributions of high-energy neutron-induced fission are of importance to achieve a good understanding of fission. Even though the mass and charge yield distributions of thermal neutron-induced fission are well known, there are few experimental data for high-energy neutron-induced fission. LÄS MER

  5. 39. Raising allowable axle loads on railway bridges using simulation and field data

    Författare :Gerard James; KTH; []
    Nyckelord :Railway bridges; Axle load; Design; Traffic loads; Reliability; Monte Carlo; Simulations; Field data;

    Sammanfattning : .... LÄS MER

  7. 40. Towards a model for managing uncertainty in logistics operations – A simulation modeling perspective

    Författare :Ola Johansson; Förpackningslogistik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; risk; uncertainty; simulation; supply chain; logistics;

    Sammanfattning : Uncertainty rules supply chains. Unexpected changes constantly occur on all levels; strategically through globalization, introduction of novel technology, mergers and acquisitions, volatile markets, and on an operational level through demand fluctuations, and events such as late arrival of in-bound material, machine equipment breakdown, and quality problems. LÄS MER