Essays about: "Dose rate"

Showing result 1 - 5 of 113 essays containing the words Dose rate.

  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. Characterization of diazepam binding inhibitor as a structure-function tool for human ɣ-aminobutyric acid-A receptors

    University essay from KTH/Proteinvetenskap

    Author : Szabolcs Simon-Guth; [2023]
    Keywords : γ-Aminobutyric acid sub-type A receptors; diazepam binding inhibitor; receptor modulation; recombinant protein expression; two-electrode voltage clamp; dose-response curve; Gammaaminosmörsyrareceptor typ A; Diazepambindande hämmare; receptormodulering; reckmbinant proteinexpression; spänningsklämma med två elektroder; dosresponskurva;

    Abstract : Gammaaminosmörsyrareceptorer typ A (GABAAR) är pentameriska ligandstyrda kloridkanaler som uppvisar neurohämmande egenskaper. Därmed är de primära läkemedelsmål för flera ångestdämpande och lugnande läkemedel som används för att minska förekomsten av aktionspotential i neuroner. READ MORE

  4. 3. Polymer gel dosimetry with MRI-readout for 3D dose verification - detector characteristics and clinical applications

    University essay from Lunds universitet/Sjukhusfysikerutbildningen

    Author : Thi Guldhill; [2023]
    Keywords : Medicine and Health Sciences;

    Abstract : Background & Purpose: Radiation therapy is an essential treatment for cancer patients with the ultimate goal to deliver radiation doses to the tumour with precision while minimizing exposure to surrounding healthy tissues. Treatment verification is crucial to ensure the accuracy of radiation delivery, for instance by measuring the radiation dose distribution. READ MORE

  5. 4. High spatial resolution study of local corrosion effects on BWR-fuel cladding : Using a combined method of GEANT4 and lwrChem

    University essay from Uppsala universitet/Tillämpad kärnfysik

    Author : Martin Nilsson Lind; [2023]
    Keywords : fission; zircaloy; corrosion; radiolysis; radiation; BWR; Monte Carlo; GEANT4; lwrChem;

    Abstract : The core of a BWR constitutes a highly complex radiational and chemical environment. Nuclear fission is utilized to generate power and as a consequence, large quantities of ionizing radiation are produced. Gamma and beta-particles along with neutrons have the sufficient ranges to escape the fuel rods and deposit energy in the reactor coolant. READ MORE

  6. 5. Exposure Monitoring and Dosimetry - Optimizing Radiation Protection in Interventional Cardiology

    University essay from Umeå universitet/Institutionen för fysik; Umeå universitet/Institutionen för strålningsvetenskaper

    Author : Amanda Pettersson; [2023]
    Keywords : Interventional cardiology; Radiation protection; Air kerma measurements; Radiation shielding; Projection angle;

    Abstract : During interventional cardiology (IC), medical staff are exposed to scattered ionizing radiation from the patient, potentially leading to various radiation-induced health effects. Therefore, shielding devices are routinely used to reduce occupational exposure during IC procedures. READ MORE