Essays about: "collimator"

Showing result 6 - 10 of 38 essays containing the word collimator.

  1. 6. Reinforcement learning applied to MLC tracking

    University essay from KTH/Medicinteknik och hälsosystem

    Author : Adithya Raju Ganeshan; [2021]
    Keywords : Reinforcement Learning; Multileaf Collimator; Magnetic Resonance Imaging; Adaptive Radiotherapy;

    Abstract : Radiotherapy has become an ever more successful treatment option for cancer.Advances in imaging protocols combined with precise therapy devices suchas linear accelerators contribute towards millimeter precision of treatmentdelivery with far fewer side effects. READ MORE

  3. 7. Quality Assurance of Intra-oral X-ray Images

    University essay from Umeå universitet/Radiofysik

    Author : Dieudonne Diba Daba; [2020]
    Keywords : Intraoral; X-rays; Intraoral X-rays; Quality assurance; Quality control; image quality; dental; Intraoral; Röntgen; Kvalitetskontroll; Intraoral röntgen; tandvård;

    Abstract : Dental radiography is one of the most frequent types of diagnostic radiological investigations performed. The equipment and techniques used are constantly evolving. READ MORE

  4. 8. Impact of MLC shape smoothing on VMAT plan complexity and agreement between planned and delivered dose

    University essay from Lunds universitet/Sjukhusfysikerutbildningen

    Author : Linnéa Strandell; [2020]
    Keywords : Medicine and Health Sciences;

    Abstract : Background/Purpose: The aperture shape controller (ASC) was introduced in the Eclipse treatment planning system to reduce plan complexity by counteracting irregular multileaf collimator (MLC) shapes. This should lead to decreased difference between the planned and measured dose distribution. READ MORE

  5. 9. Measurement and modeling of the Multileaf collimator MLCi2

    University essay from KTH/Fysik

    Author : Rafaela Örn; [2019]
    Keywords : ;

    Abstract : .... READ MORE

  6. 10. A Monte Carlo simulation study of collimators for a high-spatial-resolution Gamma Emission Tomography instrument

    University essay from Uppsala universitet/Tillämpad kärnfysik

    Author : Anastasios Anastasiadis; [2019]
    Keywords : ;

    Abstract : The present master thesis concerns a study of collimator designs for a high-spatial-resolution Gamma Emission Tomography (GET) instrument for used fuels utilizing Monte Carlo simulation codes. Designing a collimator for this purpose is a multilateral process that requires many interconnected and conflicting objectives to be taken into consideration. READ MORE