治療時に於けるX線散乱分布量及び散乱角度に就て

抄録

We studied the condition of scattered radiation and distribution of the amount of it on some places in the treatment room at the time of Rentgen treatment for the deep parts of human bodies by using the dosemeter and the pocket chamber, etc. The experimental results are thus. 1. The amount of scattered radiation is almost inversely proportionate to distance. 2. The amount of scattered radiation decreases so much by placing a lead plate of proper thickness on the concrete floor. 3. The larger the angle between the floor and a perpendicular becomes, the more the amount of scattered radiation increases. 4. The radiated substances reflect the more amount of scattered radiation on the place nearer to incident direction.