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Estimation of Radiation Exposure Emitted from Patients during Thyroid Scan at Nuclear Medicine Department , National Cancer Institute , University of Gezira,sudan

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dc.contributor.author Bilal, Rawia Omer Mohammed Elamin
dc.date.accessioned 2018-10-22T11:15:54Z
dc.date.available 2018-10-22T11:15:54Z
dc.date.issued 2016-05
dc.identifier.uri http://repo.uofg.edu.sd/handle/123456789/2540
dc.description A Dissertation Submitted to the University of Gezira in partial Fulfillment of the Requirement for the Award of the Degree of Master of Science In Physics Sciences Department of Electronic Engineering ,Faculty of Engineering and Technology May, 2016 en_US
dc.description.abstract Abstract Nuclear medicine is a specialty that includes the application of radioactive materials in diagnosis and treatment of disease. Gamma rays have very harmful effect on living cells and have superior ability to penetrate into objects and destroy living cells by ionizing them. Technetium 99 * is one of the basic isotopes used in the diagnosis thus it can be considered as main source of the workers, public and patient relative exposure. The aim of this study is measure the amount of radiation after injecting the patient by the technetium 99 * to increase the safety in the nuclear medicine department. Besides providing a certain standard required for protection of the people and environment from radiation after injection. In this study, the radiation dose rate was measured from a random sample of thyroid scan patients at different distances from the body (0, 50 and 100 cm) and at different intervals time (0 and 15 mint) and after imaging to get database used to set the radiation exposure for workers, visitors and co-patents resulting from this type of diagnosis. The means of the exposure results were (18.4, 1.1 and 0.83) mSv in distances (0, 50 and 100) cm respectively, which represents distances between the staff and patients, during the scan and (0.748, 1.1 and 17.5) mSv in distances (0, 50and 100) cm which represents distances between the staff and patients after the scan. The study showed that the means radiation exposure rate resulting from the patients (0.071, 0.0043 and 0.0031) mSv per year on distance (0, 50 and 100) cm respectively. The study found that the average radiation dose resulting from the thyroid scan in the National Cancer Institute, the University of Gezira was within the acceptable limits as recommended in the International Commission on Radiological Protection books, which recommends up to 20 mSv for workers and 1mSv for the public. Also noted that increasing distance and time was reduce the amount of exposure to the radiation from the patients injected by Technetium 99 *. The study recommends that staff must use Thermo luminescent dosimeter to reduce the amount of radiation exposure resulting from the patients injected by radiation. en_US
dc.description.sponsorship Sulieman Mohammed Salih (Main Supervisor) FawziaElsadig Mohammed Elbashir (Co-Supervisor) en_US
dc.language.iso en en_US
dc.publisher Estimation of Radiation Exposure Emitted from Patients during Thyroid Scan at Nuclear Medicine Department , National Cancer Institute , University of Gezira,sudan en_US
dc.subject Nuclear medicine en_US
dc.subject radioactive materials en_US
dc.subject treatment of disease en_US
dc.subject living cells en_US
dc.title Estimation of Radiation Exposure Emitted from Patients during Thyroid Scan at Nuclear Medicine Department , National Cancer Institute , University of Gezira,sudan en_US
dc.type Thesis en_US


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