نتایج جستجو برای: electron beam therapy
تعداد نتایج: 1041352 فیلتر نتایج به سال:
background: understanding of the incident electron energy and angular distributions from clinical electron accelerators (linacs) is important for dosimetry and treatment planning. the most important goals of this study were to evaluate the energy fluence and angular distributions of electron beams from a neptun 10pc linac using the monte carlo (mc) code. materials and methods: the linac electro...
Presternal butterfly keloid management remains a clinical challenge. This case indicates, with hypo fractionated external beam electron therapy a significant symptomatic and cosmetic benefit may be achieved without any unacceptable acute, chronic or long term toxicity.
Introduction: The most important affect of natural organic matters in water is their reaction with chlorine and producing of disinfection byproducts that are carcinogenic. Humic acid is most common natural organic materials of surface water. Advanced oxidation processes (AOPs) are methods for the removal of organics from aqueous solutions. Application of electron beam radiation is one of these ...
The focused ion beam (FIB)/scanning electron microscope (SEM) is a scanning microscope with an electron column and an ion column embedded in the same specimen chamber; both beams are aiming at the same point on the specimen surface. The FIB, generated by a Ga Liquid Metal Ion Source (LMIS), impacts the sample normal to the surface and can be focused to a spot as small as few nanometres. The FIB...
Introduction: One of the treatment choices in breast cancer is Intra operative electron beam radiation therapy (IOERT). Due to high dose delivery in this procedure, shielding disk is used to protect organs at risk (OARs). In this study, we evaluate the OARs dose in the breast IOERT using Monte Carlo simulation with and without shielding disk in RANDO phantom. Material and Methods: Simulation ...
The Brookhaven Accelerator Test Facility (ATF) is a dedicated user facility for accelerator physicists. Its design is optimized to explore laser acceleration and coherent radiation production. To characterize the lowemittance, picoseconds long electron beam produced by the ATF's photocathode RF gun, we have installed electron beam profile monitors for transverse emittance measurement, and devel...
Electron beam accelerators technology has made significant progress in environmental applications in recent years. Including some environmental applications of industrial accelerators, is clearing the air from oxides of nitrogen and sulfur(NOx , SOx) produced by industrial facilities. Combustion of coal, oil, natural gas and other gases that are produced in power plant, refineries and industri...
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