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The purpose of this study is to know the exposure dose nearby t able on the general radiography(skull AP, chest PA, abdomen AP, lumbar lateral, hip joint, knee joint) an d to find the reducing it. We measured beside the 45cm and 75cm table center, and 70cm, 80 cm, 130cm, 150cm height from the bottom. That were measured highly from the radiography of lumba r lateral, abdomen AP and hip joint as followed 66.21μSv, 34.22μSv, and 32.35μSv at the 80cm height beside 45cm from the center of table. Measured doses were reduced in order of chest PA, abdomen, hipj oint, skull, knee joint projection. It appears exposure dose of nearby radiographic table was extr emely low amount compared with limit of dose(1mSv). If it protected by Pb apron, exposure dose of assis ting person will not be exceed a limit of dose. Conclusively, Wearing apron is very important to avoid radiatio n from the general radiography Key Words : X-ray, Exposure dose, Lumbar lateral projection Corresponding Author: :     199-4  , E-mail:silverstarbell@hanmail.net, Tel: +82-(0)1-760-1343 : 2011 12 03, : 2011 12 16,  : 2011 12 18,  : 2011 12 22

The Measurement of Helper's Exposure Dose of nearby Radiographic Table in X-ray Examination