Sökning: "relative biological effectiveness RBE"
Visar resultat 1 - 5 av 21 avhandlingar innehållade orden relative biological effectiveness RBE.
1. Radiation-induced apoptosis in human lymphocytes : studies on expression, function and effects of different radiation qualities
Sammanfattning : We are constantly exposed to radiation. Radiation causes damage to our cells. By the removal of damaged and unwanted cells, apoptosis is considered to be one of the most indispensable defence processes for a multi-cellular organism. LÄS MER
2. Relative biological effectiveness in proton therapy: accounting for variability and uncertainties
Sammanfattning : Radiation therapy is widely used for treatments of malignant diseases. The search for the optimal radiation treatment approach for a specific case is a complex task, ultimately seeking to maximise the tumour control probability (TCP) while minimising the normal tissue complication probability (NTCP). LÄS MER
3. Averaged linear energy transfer and other beam quality descriptors inr elation to relative biological effectiveness
Sammanfattning : In radiotherapy with protons, a constant relative biological effectiveness (RBE) of 1.1 is traditionally applied, i.e. protons are assumed to be 10\% more effective than photons in killing cells. LÄS MER
4. Radiobiological investigations of proton and light ion therapy
Sammanfattning : During the last decade, the interest in proton and light ion beam therapy has increased considerably and several new centres are planned around the world. These particles have a large advantage due to their sharp physical dose distributions as compared to conventional radiotherapy beams. LÄS MER
5. Comparative Treatment Planning in Radiotherapy and Clinical Impact of Proton Relative Biological Effectiveness
Sammanfattning : The development of new irradiation techniques is presently a very active field of research with increased availability of more sophisticated modalities such as intensity modulated photons (IMRT), protons and light ions. The primary aim of this work is to evaluate if the dose-distributions using IMRT and protons contribute to clinical advantages. LÄS MER