نتایج جستجو برای: scattered radiation
تعداد نتایج: 258284 فیلتر نتایج به سال:
On the basis of solution space-time characteristic system by method geometric optics using symbolic calculations, analytical and numerical simulation propagation ordinary extraordinary radio waves in conducting equatorial ionospheric plasma was made considering anisotropy irregularities non-stationary nature medium. Broadening spectrum displacement its maximum contain velocity a turbulent flow ...
angiocardiography is an x-ray examination of the blood vessels or chambers of the heart. cardiologists and staff members applying this procedure are exposed to high levels of scattered radiation. in our previous study the incidence of unstable chromosomal aberrations and cytokinesis-blocked micronuclei were found to be significantly higher in exposed individuals than the age and sex matched con...
OBJECTIVE The aim of this work was to determine the radiation dose received by infants from radiographic exposure and the contribution from scatter radiation due to radiographic exposure of other infants in the same room. MATERIALS AND METHODS We retrospectively evaluated the entrance skin doses (ESDs) and effective doses of 23 infants with a gestational age as low as 28 weeks. ESDs were dete...
We present new calculations of X-ray polarization from black hole (BH) accretion disks in the thermally-dominated state, using a Monte-Carlo ray-tracing code in full general relativity. In contrast to many previously published studies, our approach allows us to include returning radiation that is deflected by the strong-field gravity of the BH and scatters off of the disk before reaching a dist...
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