An Assessment of Scattered Radiation During Fluoroscopic Procedures in Diagnostic Radiology
Apstrakt
The results of measurements of scattered radiation in the vicinity of a fluoroscopic X-ray facility are presented in this paper. Two different fluoroscopic systems, one with an undercouch tube and one with an overcouch tube, were compared. The dose rate was measured during the simulation of a fluoroscopy procedure, using an ionization chamber as a dosemeter. The distribution of scattered radiation has been determined and results show a much higher dose rate in cases of an overcouch tube arrangement. When X-ray units with an undercouch tube are concerned, under same exposure conditions, the dose rate is higher in cases of a vertical beam. Prior to the measurements, the ionization chamber was examined in order to evaluate its suitability as a survey meter used in diagnostic radiology. Measurements show that below 1.2 s, the ionization chamber gives an underestimation of dose rates. Therefore, in order to perform accurate measurements using this instrument, exposure times should be above ...1.2 s.
Ključne reči:
fluoroscopy / scattered radiation / ionization chamber / doseIzvor:
Nuclear technology and radiation protection, 2009, 24, 3, 204-208Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Ciraj-Bjelac, Olivera AU - Aranđić, Danijela AU - Košutić, Duško D. AU - Lazarević, Đorđe R. PY - 2009 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3868 AB - The results of measurements of scattered radiation in the vicinity of a fluoroscopic X-ray facility are presented in this paper. Two different fluoroscopic systems, one with an undercouch tube and one with an overcouch tube, were compared. The dose rate was measured during the simulation of a fluoroscopy procedure, using an ionization chamber as a dosemeter. The distribution of scattered radiation has been determined and results show a much higher dose rate in cases of an overcouch tube arrangement. When X-ray units with an undercouch tube are concerned, under same exposure conditions, the dose rate is higher in cases of a vertical beam. Prior to the measurements, the ionization chamber was examined in order to evaluate its suitability as a survey meter used in diagnostic radiology. Measurements show that below 1.2 s, the ionization chamber gives an underestimation of dose rates. Therefore, in order to perform accurate measurements using this instrument, exposure times should be above 1.2 s. T2 - Nuclear technology and radiation protection T1 - An Assessment of Scattered Radiation During Fluoroscopic Procedures in Diagnostic Radiology VL - 24 IS - 3 SP - 204 EP - 208 DO - 10.2298/NTRP0903204C ER -
@article{ author = "Ciraj-Bjelac, Olivera and Aranđić, Danijela and Košutić, Duško D. and Lazarević, Đorđe R.", year = "2009", abstract = "The results of measurements of scattered radiation in the vicinity of a fluoroscopic X-ray facility are presented in this paper. Two different fluoroscopic systems, one with an undercouch tube and one with an overcouch tube, were compared. The dose rate was measured during the simulation of a fluoroscopy procedure, using an ionization chamber as a dosemeter. The distribution of scattered radiation has been determined and results show a much higher dose rate in cases of an overcouch tube arrangement. When X-ray units with an undercouch tube are concerned, under same exposure conditions, the dose rate is higher in cases of a vertical beam. Prior to the measurements, the ionization chamber was examined in order to evaluate its suitability as a survey meter used in diagnostic radiology. Measurements show that below 1.2 s, the ionization chamber gives an underestimation of dose rates. Therefore, in order to perform accurate measurements using this instrument, exposure times should be above 1.2 s.", journal = "Nuclear technology and radiation protection", title = "An Assessment of Scattered Radiation During Fluoroscopic Procedures in Diagnostic Radiology", volume = "24", number = "3", pages = "204-208", doi = "10.2298/NTRP0903204C" }
Ciraj-Bjelac, O., Aranđić, D., Košutić, D. D.,& Lazarević, Đ. R.. (2009). An Assessment of Scattered Radiation During Fluoroscopic Procedures in Diagnostic Radiology. in Nuclear technology and radiation protection, 24(3), 204-208. https://doi.org/10.2298/NTRP0903204C
Ciraj-Bjelac O, Aranđić D, Košutić DD, Lazarević ĐR. An Assessment of Scattered Radiation During Fluoroscopic Procedures in Diagnostic Radiology. in Nuclear technology and radiation protection. 2009;24(3):204-208. doi:10.2298/NTRP0903204C .
Ciraj-Bjelac, Olivera, Aranđić, Danijela, Košutić, Duško D., Lazarević, Đorđe R., "An Assessment of Scattered Radiation During Fluoroscopic Procedures in Diagnostic Radiology" in Nuclear technology and radiation protection, 24, no. 3 (2009):204-208, https://doi.org/10.2298/NTRP0903204C . .