The dose profiles at the center and the places 1cm away from the surface of a standard dosimetry phantom of a head were measured with thermoluminescent dosimeters (TLD) by using a Hitachi W-1000 CT system.

• 应用热释光剂量计和头部CT剂量监测模体 ,在日立W - 10 0 0型机器上测定了模体中心和距体表 1cm处 ,单层和多层扫描时的剂量分布。