Non-Destructive Evaluation of Pb-Sn Alloys by Scattering of 145 Kev Gamma Rays

摘要

The objective of present experiment is to assign effective atomic number (Zefl) to solders (alloys of lead and tin) having different composition of tin. An HPGe semiconductor detector, placed at 70o to the incident beam, detects gamma photons scattered from the sample under investigation. The experiment is performed on various elements with atomic number satisfying, 6 < Z < 82, for 145 keV incident photons. The agreement of measured values of Zeff with theory is quite satisfactory.