Auflistung Nach Schlagwort "Photons"
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AMBIENT DOSE EQUIVALENT RECEIVED at 15 MV LINAC ENVIRONMENTS DUE to PHOTONEUTRONS CONTAMINATION
(2018)Mapping of the photoneutron spectrum and flux performed at several positions over the treatment table of a 15 MV medical linac. Neutron activation technique has been applied to obtain the neutron spectra in the mixed I3 ... -
Early detection of melanoma with the combined use of acoustic microscopy, infrared reflectance and Raman spectroscopy
(2015)Malignant melanoma is a form of skin cancer, with increasing incidence worldwide. Early diagnosis is crucial for the prognosis and treatment of the disease. The objective of this study is to develop a novel animal model ... -
Field flatness and symmetry of photon beams: Review of the current recommendations
(2003)Flatness and symmetry are main parameters determining the quality of a photon beam produced by linear accelerators. The quality assurance in routine clinical practice of radiotherapy and consequently the treatment-outcome ... -
An inhomogeneity correction algorithm for irregular fields of high-energy photon beams based on Clarkson integration and the 3D beam subtraction method
(2006)A number of treatment-planning systems still use conventional correction methods for body inhomogeneities. Most of these methods (power law method, tissue-air ratio (TAR), etc.) consider only on-axis points, rectangular ... -
Numerical and experimental analysis of high frequency acoustic microscopy and infrared reflectance system for early detection of melanoma
(2016)Melanoma is a very malicious type of cancer as it metastasizes early and hence its late diagnosis leads to death. Consequently, early diagnosis of melanoma and its removal is considered the most effective way of treatment. ... -
Photon dose kernels dataset for nuclear medicine dosimetry, using the GATE Monte Carlo toolkit
(2012)Photon dose point kernels (DPKs) were generated using the GATE toolkit for different media and for radionuclides of interest in nuclear medicine. In the present work the primary photon contribution of different isotopes ... -
Preparation and characterization of novel Niln2S4/UiO-66 photocatalysts for the efficient degradation of antibiotics in water
(2022)Photocatalysis is considered an economical, environmentally friendly, and effective technology for removing pollutants. The construction of Z-Scheme heterojunctions has been identified as one of the feasible solutions ... -
A Sub-Sampling Approach for Data Acquisition in Gamma Ray Emission Tomography
(2016)State of the art data acquisition systems for small animal imaging gamma ray detectors often rely on free running Analog to Digital Converters (ADCs) and high density Field Programmable Gate Arrays (FPGA) devices for digital ...