准单色X射线机替代<sup>241</sup>Am放射源的测厚应用研究

准单色X射线机替代²⁴¹Am放射源的测厚应用研究

摘要: 应用自制的能量50～60 keV的准单色X射线机替代²⁴¹Am低能光子源（1.11×10⁹ Bq）应用于BS-03测厚仪进行测厚研究，分别测试了BS-03测厚仪输出电流范围，测试X射线在钢板、铝板、有机玻璃的衰减规律以及准单色X射线机稳定性，结果表明，准单色X射线机可以替代²⁴¹Am放射源用于BS-03测厚仪。

Abstract: In the research of BS-03 thickness detector, a self-designed quasi-monochromatic (50-60 keV) X-ray machine was studied as a substitution to Am-241 low energy photon source（1.11×10⁹ Bq）The range of output current, the attenuation of X rays through the steel plate, the aluminum plate, and the organic glass plate and stability of quasi-monochromatic X-ray machine was tested. The result showed that quasi-monochromatic X-ray machine could be an applicable replacement of Am-241 radioactive source.