This study explores the growth of heat transfer rate for hybrid nanofluid-flow through two rotary plates fixed parallel. For improvement thermal conductivity nanoparticles Cu and graphene oxide have dispersed in water. The fluid-flow has been influenced by radiation. Magnetic effects with strength, B0, employed normal direction plates. set equations that controlled system shifted to dimension-f...

The purpose of this study was to evaluate a methodology to reduce scatter and leakage radiations to patients' surface and shallow depths during conventional and advanced external beam radiotherapy. Superflab boluses of different thicknesses were placed on top of a stack of solid water phantoms, and the bolus effect on surface and shallow depth doses for both open and intensity-modulated radioth...

The hydrodynamics of plasma formed in the interaction 100 ns UV KrF laser pulses with foam targets volume densities from 5 to 500 mg/cm3 was studied. Initial and dynamic transmittance at 248 nm wavelength were measured. At intensities about 1012 W/cm2, propagation rates radiation through reached 80 km/s, while stream velocities both front rear sides approximately same, ~ 75 which confirms a vol...

Radiation-induced color centers locally produced in lithium fluoride (LiF) are successfully used for radiation detectors. LiF detectors extreme ultraviolet radiation, soft and hard X-rays, based on photoluminescence from aggregate electronic defects, currently under development imaging applications with laboratory sources, as well large-scale facilities. Among the peculiarities of LiF-based det...

Introduction: Tumor volume delineation is the most important step in the radiation treatment planning. In this study the impact of PET/CT data on the tumor delineation precision of non-small cell lung cancer (NSCLC) was investigated. Methods: PET/CT images of 20 patients with primary NSCLC were obtained and imported to the treatment planning system for im...

•CF may be evaluated with CT at a radiation dose equivalent to chest radiograph.•Low thoracic acquired mean ED of 0.08 ± 0.01mSv.•Compared ASIR, MBIR images demonstrate superior objective image parameters. AIMTo assess the utility volumetric low-dose computed tomography (CT) thorax (LDCTT) protocol posteroanterior (PA) and lateral radiograph for surveillance cystic fibrosis (CF) patients.MATERI...

BACKGROUND AND PURPOSE Solid-state detectors such as diodes and diamonds are useful radiation detectors, particularly for small field measurements, such as in stereotactic dosimetry or in the small sub-field measurements required for intensity modulated radiotherapy (IMRT) . In all small field measurements, positioning of the detector is critical. Generally it is assumed that the center of the ...

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Verification of the dose calculation model and the software used for treatment planning is an important step for accurate radiation delivery in radiation therapy. Using BANG3 polymer gel dosimeter with a 3 Tesla magnetic resonance imaging (MRI) scanner, we examined the accuracy of TomoTherapy treatment planning and radiation delivery. We evaluated one prostate treatment case and found the calcu...