Author : A.Rasheed, Abdullah
Secondary shielding for the control booth of the fluoroscopy room at AL –Hussaine teaching hospital of kerbala city,Iraq.
journal of kerbala university,
Volume 9, Issue 2, Pages 215-222
X-ray rooms should be designed to provide flexibleand efficient working areas for different typesof imaging procedure. The adequacy of shielding depends on the material and thickness used for this purpose.This work therefore studies the secondary shieldingfor the control booth of the fluoroscopy room. By considering the fluoroscopy room design and the radiographic devices profiles used , the clinical total workload per week and total workload per patient have been computed and its distribution according to the most widely used voltages has been determined by recording the actual clinical technical values of maximum ,average and minimum mAs and the corresponding values of kilovolt peak for 113patients over threemonths. As a diagnostic x-ray radiation shielding reference, the National Council on Radiation Protectionand Measurements report No.147 (NCRP report No.147) and XRAYBARR computer program have been used to compute the secondarybarrier thicknesses of the control boothof the fluoroscopy room forlead and glass. It is found that the total workload per week of NCRP report No.147 is about 4.5 times that of calculated for average state and about 7 times that of calculated workload for busy state. The shielding status of control both was quite sufficient ,and about 1 mm of lead was used to shield the front wall and lead glass was used in the shielding of observation window.