Search for dissertations about: "Radiation track structure"

Showing result 1 - 5 of 15 swedish dissertations containing the words Radiation track structure.

2. 1. The microdosimetric variance-covariance method used for beam quality characterization in radiation protection and radiation therapy

   Author : Jan Erik Lillhök; Lennart Lindborg; Bernd Grosswendt; Stockholms universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ionizing radiation; radiation quality; radiation protection; radiation therapy; microdosimetry; nanodosimetry; variance-covariance method; Radiological physics; Radiofysik; medicinsk strålningsfysik; Medical Radiation Physics;

   Abstract : Radiation quality is described by the RBE (relative biological effectiveness) that varies with the ionizing ability of the radiation. Microdosimetric quantities describe distributions of energy imparted to small volumes and can be related to RBE. READ MORE

4. 2. Development of Monte Carlo track structure simulations for protons and carbon ions in water

   Author : Thiansin Liamsuwan; Hooshang Nikjoo; Shuzo Uehara; David Liljequist; Michael Dingfelder; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Radiation track structure; Monte Carlo simulations; interaction cross sections; classical trajectory Monte Carlo CTMC method; microdosimetry; ion beams; Medical Radiation Physics; medicinsk strålningsfysik;

   Abstract : The goal of radiation therapy is to eradicate tumour cells while minimising radiation dose to healthy tissues. Ions including protons and carbon ions have gained increasing interest for cancer treatment. READ MORE

5. 3. Protons, other Light Ions, and 60Co Photons : Study of Energy Deposit Clustering via Track Structure Simulations

   Author : Gloria Bäckström; Anders Ahnesjö; Nina Tilly; José M. Fernández-Varea; Niels Bassler; Uppsala universitet; []
   Keywords : Proton; light ion; Co-60 photon; track structure Monte Carlo code; clustering patterns of energy deposit; RBE; Medicinsk radiofysik; Medical Radiophysics;

   Abstract : Radiotherapy aims to sterilize cancer cells through ionization induced damages to their DNA whilst trying to reduce dose burdens to healthy tissues. This can be achieved to a certain extent by optimizing the choice of radiation to treat the patient, i.e. the types of particles and their energy based on their specific interaction patterns. READ MORE

6. 4. Micro/nanometric Scale Study of Energy Deposition and its Impact on the Biological Response for Ionizing Radiation : Brachytherapy radionuclides, proton and carbon ion beams

   Author : Fernanda Villegas Navarro; Anders Ahnesjö; Carmen Villagrasa; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Ionizing radiation; Monte Carlo track structure code; Microdosimetric spread; Energy deposition clustering; RBE; Medicinsk radiofysik; Medical Radiophysics;

   Abstract : Research in radiotherapy for cancer treatment focuses on finding methods that can improve the compromise between tumour cell inactivation versus damage to the surrounding healthy tissue. As new radiation modalities such as proton therapy become accessible for everyday clinical practice, a better understanding of the variation in biological response of the tumour and healthy tissues would improve treatment planning to achieve optimal outcome. READ MORE

7. 5. An ultra-thin-walled superconducting solenoid for meson-decay physics

   Author : Roger Ruber; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Radiation sciences; Strålningsvetenskap; Radiation biology; Strålningsbiologi; radiologi; Radiology;

   Abstract : A compact and extremely thin-walled superconducting warm-bore solenoid magnet, has been developed for the WASA detector setup at the CELSIUS accelerator and storage ring of the The Svedberg Laboratory. It provides a central axial magnetic field strength of 1. READ MORE