Essays about: "MLC"

Showing result 1 - 5 of 19 essays containing the word MLC.

  1. 1. Evaluating aperture shape controller (ASC) in modulated radiation treatments

    University essay from

    Author : Vilma Andrén Cederholm; [2023-09-28]
    Keywords : Medical physics;

    Abstract : To decrease aperture complexity, the aperture shape controller (ASC) is a recently introduced function in Eclipse external beam planning (Varian Medical Systems, Palo Alto, USA). ASC works within the photon optimizer, minimizing distances between adjacent leaf tips of the MLC. READ MORE

  3. 2. Machine learning and Neural networks in Fake news detection : A mapping study

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Theodor Kudryk; Astrid Lindh; [2022]
    Keywords : Fake news; Information disorder; Detection; Disinformation; Natural Lan-guage Processing; Machine Learning; Neural Networks; Fake news; Desinformation; Detektion; Natural Language Processing; Maskininlärning; Neurala Nätver;

    Abstract : Fake news, or information disorder, is a societal problem that could be partially remedied by automatic detection tools. While still a young research field many such tools have been proposed in academic writing. READ MORE

  4. 3. How much is (not) enough? : A Study of the Effect of Power-sharing Provisions on post-treaty Conflict-Related Sexual Violence by Rebel Groups in sub-Sahara Africa

    University essay from Uppsala universitet/Institutionen för freds- och konfliktforskning

    Author : Annalena Podzun; [2021]
    Keywords : Power-Sharing; Conflict-Related Sexual Violence; Post-Treaty; Non-State Actors; Burundi; Democratic Republic of the Congo;

    Abstract : This thesis studies why some non-state armed groups commit high levels of post-treaty conflict-related sexual violence (CRSV) while others do not. The presented mechanism suggests that limited power-sharing provisions in a peace accord provide few incentives for group leaders to stay committed to the peace process. READ MORE

  5. 4. 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

  6. 5. 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