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An analysis of the distribution of radiation doses in the area of CT Scan MultiSlice 64 has been carried out in Sanglah Hospital Denpasar. The study was conducted by dividing the area around the room into 8 regions and paths that indicate the distance from the wall to the surveillance. Measurements were made at several points at intervals of 1 m. Each point is taken three times the data collection. From the results of the distribution analysis it was found that there was an increase in the radiation dose rate to the Dose Limit Value (DLV) with a significance level below 0.05 occurring in region C with an average dose rate of 142.32 μSv/h, region E with an average value of an average of 111.36 μSv/h and area D with an average value of 40.68 μSv/h which has a value above the DLV. Whereas the value of the dose rate of other regions is below the DLV. Areas with a 25 cm transverse brick type barrier wall that has a 2 m window above have an average dose rate of 129.55 μSv/h, a 5 cm wooden door with a 2 mm Pb layer has an average dose rate of 67, 91 μSv/h. Whereas in areas with a 25 cm transverse brick type borderless wall construction without glass, Pb glass and reinforced concrete columns there was no increase in the radiation dose rate to the DLV. The increase in the radiation dose rate occurs because there is a window above the dividing wall and the construction of the door that is not in accordance with the rules because it has a keyhole and door handles that allow radiation to pass through the window and keyhole. Keywords

Radiation dosage distribution in area room CT scan multi slice 64 to dose limit value