Open AccessSECONDARY RADIATION MAPPING
Author(s) -
Ioannis Vlachos,
I. Kandarakis,
G. Panayiotakis
Publication year - 2021
Publication title -
paripex indian journal of research
Language(s) - English
DOI - 10.36106/paripex/5311640
Subject(s) - dose rate , electromagnetic shielding , nuclear medicine , radiation protection , radiation , imaging phantom , radiography , ionizing radiation , radiation exposure , mean value , filtration (mathematics) , materials science , radiation dose , radiochemistry , medicine , optics , physics , chemistry , irradiation , radiology , mathematics , nuclear physics , composite material , statistics
Radiation protection for personnel working with X-rays is of vital importance. Several studies have been publishedregarding the secondary radiation and the shielding requirements to areas that are adjacent to the X-ray units. In thiswork, secondary radiation in a conventional radiographic room, in terms of dose rate (mSv/hr), as a function of differentradiographic exposure factors has been studied. The measurements were performed with a 451P Fluke Biomedicalsurvey meter on a Philips Medio 65 CP-H X-ray generator with a cylindrical water phantom. It was found that the doserate from the scatter radiation decreases with distance. An added filtration of 2.0 mmAl at 100 kVp reduced thesecondary dose rate further by 21.4%. The results of this study may be of value during exposure of personnel that are notprotected by shielding materials.HighlightsŸ It was found that the dose rate from the scatter radiation decreases with distance. An added filtration of 2.0 mmAl at100 kVp reduced the secondary dose rate further by 21.4%.Ÿ The mean secondary X-ray energies for 60, 80, 100 and 100 kV with 2 mmAl added, were calculated as 34.41, 51.12,69.03 and 71.29 keV respectively.Ÿ The results of this study are of value during exposure of people such as radiographers, and patients during the use ofmobile X-ray units.