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Assessment of co-60 radiation telethe rapy Unit perfamance in radiation and isotope center khartoum

Show simple item record Salih, ahlam Hassan Supervisor - Mohamed Ahmed Ali Omer 2013-08-27T08:22:25Z 2013-08-27T08:22:25Z 2012-01-01
dc.identifier.citation salih, ahlam hassan .Assessment of co-60 Radiation teletherapy unit performance in Radiation and isotope center khartoum /ahlam hassan Salih ; Mohammed Ahmed Ali .-Khartoum:sudan university of scince and technololgy,Medical Radiologic scince,2012.-28p. :ill .;28cm.-M.Sc. en_US
dc.description Thesis en_US
dc.description.abstract The current study carried out in Radiation and Isotopes Center in Khartoum to assess 60Co-teletherapy unit performance, in which they the front pointer, graphic paper, Pin, non screen film and check plate were used to obtain the measurements. The results reveal that there is a difference between the theoretical FS and the measured one in relation to the change of SSD; and the average difference was 1.1 cm Also from the correlation between the QC field size (practical measurement) and inverse square low (theoretical) field size which is given by using Myneord Factor, there is 0.4 cm as excess value in practical measurement relative to theoretical method. Also there were shift in the collimator, couch and gantry angel isocenter versus variability in SSD, angel of diaphragm rotation respectively which was ±1.1, ±1.3, 0.003 cm respectively. Also the study reveal that the scale meter SSD has a shift of 0.8 cm greater than the actual measured one and determined by front pointer. Moreover the scanning of the exposed film revealed that the penumbra profile was 2 cm and the laser beams incongruence at the isocenter was 1.1 cm. en_US
dc.description.sponsorship Sudan university of science and technology en_US
dc.language.iso en en_US
dc.publisher sudan Universty of science and technology en_US
dc.subject Radioation teletherapy en_US
dc.title Assessment of co-60 radiation telethe rapy Unit perfamance in radiation and isotope center khartoum en_US
dc.type Thesis en_US

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