Application Research of Quasi-monochromatic X-ray Machine Replacing ²⁴¹Am Radioactive Source in Thickness Measurement

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.