Addressing Limitations of a Spatially Sensitive Large-Area Ion Chamber for Real-Time Verification of Intensity Modulated Radiation Therapy
نام عام مواد
[Thesis]
نام نخستين پديدآور
Xun Lin
نام ساير پديدآوران
Islam, Mohammad K.; Heaton, Robert K.
وضعیت نشر و پخش و غیره
نام ناشر، پخش کننده و غيره
University of Toronto (Canada)
تاریخ نشرو بخش و غیره
2015
مشخصات ظاهری
نام خاص و کميت اثر
95
يادداشت کلی
متن يادداشت
Committee members: Coolens, Catherine; Dolan, Alf M.; Jaffray, David A.
یادداشتهای مربوط به نشر، بخش و غیره
متن يادداشت
Place of publication: United States, Ann Arbor; ISBN=978-1-339-28229-9
یادداشتهای مربوط به پایان نامه ها
جزئيات پايان نامه و نوع درجه آن
M.H.Sc.
نظم درجات
Biomedical Engineering
کسي که مدرک را اعطا کرده
University of Toronto (Canada)
امتياز متن
2015
یادداشتهای مربوط به خلاصه یا چکیده
متن يادداشت
Lack of light transparency and overall thickness are limitations of a previously described spatially sensitive large-area ionization chamber used for real-time verification of radiation therapy beam delivery. The first limitation was addressed with investigation of a commercially available light transparent conductive glass plates as replacements for aluminum plates in the construction of the chamber. Resulting chamber produced expected spatial sensitivity, allowed the light field to be transmitted with 35% attenuation in intensity, and caused deviation of field position due to refraction up to 0.4 mm. The second limitation was investigated with a novel interleaved comb patterned electrode pairs. The pattern was ablated on a light transparent conductive glass plate and utilized for construction of an experimental prototype ionization chamber that was 35% thinner, light transparent, and produced a spatial sensitivity comparable to the original design. However, further refinement in the design and manufacturing process will be necessary to make a practical comb patterned ionization chamber pair.
موضوع (اسم عام یاعبارت اسمی عام)
موضوع مستند نشده
Biomedical engineering; Biophysics; Oncology
اصطلاحهای موضوعی کنترل نشده
اصطلاح موضوعی
Biological sciences;Applied sciences;Health and environmental sciences;Imrt;Large area ionization chamber;Light transparency;Online treatment verification;Real-time quality assurance
نام شخص به منزله سر شناسه - (مسئولیت معنوی درجه اول )