| 摘要 |
PROBLEM TO BE SOLVED: To provide a radiation shielding wall capable of reducing the effect of radiation leaking around, without increasing the weight and cost of a whole radiation shielding wall.SOLUTION: A radiation shielding wall that is provided around a liniac for therapy comprises: a metal shield unit 30 composed of a first metal shield 10 whose cross-sectional shape is rectangular and two metal shields 20 provided on both ends of the first metal shield 10 and whose cross-sectional areas have cross-sectional shapes less rectangular than that of the first metal shield 10; and a concrete shield unit made of concrete covering the metal shield unit. |
