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Assessment of Occupational Radiation Exposures at Ghana Research Reactor-1 Facility.
New Solut
August 2024
Radiation Protection Institute, Ghana Atomic Energy Commission, Accra, Ghana.
The annual occupational doses for workers at the Ghana Research Reactor-1 facility were assessed for the period 2018-2021. The dose records of monitored staff were retrieved and analysis done for dose distribution and collective effective doses. Thermoluminiscent dosimeters were used to monitor the occupational exposures.
View Article and Find Full Text PDFEstimating brain radiation dose to the main operator in interventional radiology.
J Radiol Prot
May 2020
Departamento de Energia Nuclear, Universidade Federal de Pernambuco, Recife, \Pernambuco, BRAZIL.
The aim of this study was to estimate brain radiation dose to the main operator during interventional radiology procedures. Occupational brain doses from 19 interventional procedures were measured using thermoluminiscent dosimeters and an anthropomorphic RANDO woman phantom simulating a main operator. Results show that, interventional radiologists may receive minimum and maximum brain doses per procedure of 0.
View Article and Find Full Text PDFPeak skin and eye lens radiation dose from brain perfusion CT: CTDI and Monte Carlo based estimations.
Eur J Radiol
May 2020
Department of Imaging and Pathology, Division of Medical Physics & Quality Assessment, KU Leuven, Herestraat 49 box 7003, 3000, Leuven, Belgium.
Purpose: To quantify the eye lens, peak skin and brain doses associated with head CT perfusion exam by means of thermoluminescent dosimeters (TLDs) measurements in a cadaver and compare them to Monte Carlo (MC) dose estimations as well as to the CTDI.
Method: 18 TLDs were inserted in the brain, skin, and eye lenses of a female cadaver head, who underwent a CT brain perfusion scan using a Siemens Definition Flash. The table-toggling protocol used 80 kVp, 200 mAs, 32 × 1.
Cytogenetic status of interventional radiology unit workers occupationally exposed to low-dose ionising radiation: A pilot study.
Mutat Res Genet Toxicol Environ Mutagen
July 2019
Institute for Medical Research and Occupational Health, Mutagenesis Unit, Zagreb, Croatia. Electronic address:
Interventional radiology unit workers represent one of the occupationally most exposed populations to low-dose ionizing radiation. Since there are many uncertainties in research of doses below 100 mSv, this study attempted to evaluate DNA damage levels in chronically exposed personnel. The study group consisted of 24 subjects matched with a control population by the number of participants, age, gender ratio, active smoking status, the period of blood sampling, and residence.
View Article and Find Full Text PDFThermoluminescence glow curve deconvolution for discrete and continuous trap distributions.
Appl Radiat Isot
November 2019
CIEMAT, Av. Complutense 40, E-28040, Madrid, Spain.
Deconvolution analysis of the thermoluminiscent (TL) glow curves proved to be a good complementary method to characterize the individual glow peaks by fitting their kinetic parameters. In this work, new software has been developed for the automatic deconvolution of TL glow curves, assuming either discrete or continuous distribution of trapping centres. The guess estimation of the kinetic parameters is done automatically and can be manually modified, thus allowing the use of the software for routine, processing a large number of measurements, as well as for research purposes.
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