Increased dose near the skin due to electromagnetic surface beacon transponder
نویسندگان
چکیده
منابع مشابه
Increased dose near the skin due to electromagnetic surface beacon transponder
The purpose of this study was to evaluate the increased dose near the skin from an electromagnetic surface beacon transponder, which is used for localization and tracking organ motion. The bolus effect due to the copper coil surface beacon was evaluated with radiographic film measurements and Monte Carlo simulations. Various beam incidence angles were evaluated for both 6 MV and 18 MV experimen...
متن کاملValidation of the Calypso Surface Beacon Transponder
Calypso L-shaped Surface Beacon transponder has recently become available for clinical applications. We herein conduct studies to validate the Surface Beacon transponder in terms of stability, reproducibility, orientation sensitivity, cycle rate dependence, and respiratory waveform tracking accuracy. The Surface Beacon was placed on a Quasar respiratory phantom and positioned at the isocenter w...
متن کاملVariations in Ocean Surface Temperature due to Near-Surface Flow: Straining the Cool Skin Layer
The aqueous thermal boundary layer near to the ocean surface, or skin layer, has thickness O(1 mm) and plays an important role in controlling the exchange of heat between the atmosphere and the ocean. Theoretical arguments and experimental measurements are used to investigate the dynamics of the skin layer under the influence of an upwelling flow, which is imposed in addition to free convection...
متن کاملSkin Diseases Due to Increased Androgen Sensitivity
In an inherited genetic hypersensitivity, normai levels of androgens may cause cosmetic disturbances or even dermatologica! diseases: acne and alopecia. The cosmetic dermatologist is called for help. Androgenetic stimulation leads to increased levels of sebum, to an imbalance of lipids on the skin surface, to follicular hyperkeratosis and, finally, to the fonnation of comedones. In those patien...
متن کاملIncreased Mercury release due to exposure to electromagnetic radiation as a limiting factor for using dental amalgam
Background: Although it is one of the most toxic nonradioactive elements, mercury is widely used in dental amalgam. Mercury is a toxic element which can damage various organs such as central nervous system, renal, respiratory and hematologic systems. The adverse health impacts associated to exposure to some common sources of electromagnetic fields including laptop computers, mobile phones, ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Applied Clinical Medical Physics
سال: 2015
ISSN: 1526-9914
DOI: 10.1120/jacmp.v16i3.4930