Nizin P S, Kase K R
Department of Radiation Therapy, Harvard Medical School, Boston, Massachusetts 02115.
Med Phys. 1990 Jan-Feb;17(1):92-4. doi: 10.1118/1.596534.
A measurement technique previously proposed for determining dose from primary radiation has been tested using 60Co gamma rays. It is shown that the dose from primary radiation is reliably determined for field sizes of 10 X 10 and 20 X 20 cm2 at depths of 0.5, 5, and 10 cm in water. With further development this technique may be useful for verifying dose from primary radiation that may be calculated using a variety of methods.
一种先前提出的用于确定原发射线剂量的测量技术已使用60Coγ射线进行了测试。结果表明，在水中0.5、5和10厘米深度处，对于10×10和20×20平方厘米的射野大小，原发射线的剂量能够可靠地确定。随着该技术的进一步发展，它可能有助于验证通过多种方法计算出的原发射线剂量。
