放射線障害防護薬剤に関する研究(第16報)マウスの生存および体重におよぼす軟X線の効果

抄録

Radiosensitivity of survival and body weight change was measured by soft X-ray irradiation of mice under various conditions, and the result was compared with that from irradiation with 200 kVp X-ray. 1) Neither the survival nor body weight was markedly affected by soft X-ray irradiation with 30 kVp. 2) At 70 kVp, survival rate and body weight change rate varied with increasing dose. When acrylate filter of 10 mm was used, significant correlation was found in the survival rate in the range of 500-2000 R and in the body weight change rate in the range of 250-2000 R. In this case relative biological efficiency was ca. 0.5. 3) Depilation of mice produced by soft X-ray irradiation can be prevented by the use of an acrylate filter.