Sökning: "LINAC"

Visar resultat 1 - 5 av 18 avhandlingar innehållade ordet LINAC.

  1. 1. Hypofractionated conformal stereotactic radiotherapy in the treatment of AVMs and cerebral metastases

    Författare :Peter Lindvall; Hans Bolander; Umeå universitet; []
    Nyckelord :arteriovenous malformations; brain metastases; hypofractionation; stereotactic radiotherapy; LINAC; embolisation; Clinical Neurophysiology; klinisk neurofysiologi;

    Sammanfattning : Hypofractionated conformal stereotactic radiotherapy (HCSRT) has been used for the treatment of AVMs at the Umeå University Hospital since 1986. From this year and onwards an increasing number of patients with single or oligo brain metastases have also been treated using this technique. LÄS MER

  3. 2. Design and Implementation of RF Kickers in MAX IV

    Författare :David Olsson; Lunds universitet; []
    Nyckelord :Accelerator cavities; Beam choppers; Bunch-by-bunch feedback; RF kickers; Striplines;

    Sammanfattning : The MAX IV facility in Lund, Sweden, consists of two storage rings for production of synchrotron radiation, and a full-energy LINAC for top-up injections. The LINAC also delivers short high-intensity electron bunches to a short pulse facility. LÄS MER

  4. 3. Design and Control of Long-Pulse High-Power Klystron Modulators

    Författare :Max Collins; Industriell elektroteknik och automation; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The European Spallation Source (ESS) is an under-construction material science research facility in Lund, Sweden, and will upon completion host the most powerful superconducting linear accelerator (linac) in the world. The ESS linac is powered by klystron modulators required to deliver long high-power pulses (pulse amplitude 115 kV/100 A, pulse length 3. LÄS MER

  5. 4. Surface guided radiotherapy

    Författare :Malin Kügele; Lund Medicinsk strålningsfysik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; surface guided radiotherapy; DIBH; SGRT; radiotherapy; patient positioning; intra-fraction motion; surface imaging; treatment planning; SGRT; surface guided radiotherapy; intra-fraction motion; DIBH; patient positioning; treatment planning; surface imaging;

    Sammanfattning : Modern radiotherapy aims to treat the decease while minimizing the radiation dose to the adjacent normal tissue, to minimize acute and late effects of the treatment. The foremost technological approaches have been intensity modulated radiotherapy (IMRT) and intensity modulated proton therapy (IMPT) in combination with image guided radiotherapy (IGRT). LÄS MER

  7. 5. Dosimetric effects of removing the flattening filter in radiotherapy treatment units

    Författare :Mårten Dalaryd; Lund Medicinsk strålningsfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The aim of this work was to investigate the dosimetric effects of removing the flattening filter from conventional C-arm medical linear accelerators. In conventional linear accelerators used for radiotherapy, a flattening filter is positioned in the beam line to provide a uniform lateral dose profile at a specified depth in water. LÄS MER