نتایج جستجو برای: proton therapy
تعداد نتایج: 713607 فیلتر نتایج به سال:
background: the advantages of proton beam in radiation therapy- like small lateral scattering as well as absence of exit dose tail in the organs which are after the tumor- make it capable of delivering more treatment doses to the target and much lesser to the critical tissues near it. materials and methods: in this study, the monte carlo mcnpx code has been used to simulate a slab head phantom ...
The goal of this session is to review the physics of proton therapy, treatment planning techniques, and the use of volumetric imaging in proton therapy. The course material covers the physics of proton interaction with matter and physical characteristics of clinical proton beams. It will provide information on proton delivery systems and beam delivery techniques for double scattering (DS), unif...
The first patients were treated with proton beams in 1955 at the Lawrence Berkeley Laboratory in California. In 1970, proton beams began to be used in research facilities to treat cancer patients using fractionated treatment regimens. It was not until 1990 that proton treatments were carried out in hospital-based facilities using technology and techniques that were comparable to those for moder...
Comparison of Different Model Predictions on RBE in the Proton Therapy Technique Using the GATE Code
Recently, proton therapy is used as one of the effective methods for treating various types of cancer in clinical treatment. An appropriate formalism to obtain relative biological effectiveness values for treatment planning studies is needed in this hadrontherapy technique. Hereby, the quantity of biological dose, instead of using the physical doses, is introduced to evaluate the biological eff...
Proton beam therapy (PBT) is an advanced type of radiotherapy that shows a dosimetric advantage over photon and provides superior dose distribution. PBT may improve patient survival by improving the local disease control while reducing toxicity to normal organs, which result in fewer treatment-related complications. During last decade, technological progress has opened up new possibilities plan...
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