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522240 
Journal Article 
Non-Destructive Evaluation of Pb-Sn Alloys by Scattering of 145 Kev Gamma Rays 
Singh, MP; Sharma, A; Singh, B; Sandhu, BS 
2009 
Yes 
Asian Journal of Chemistry
ISSN: 0970-7077
EISSN: 0975-427X 
21 
10 
242-245 
English 
The objective of present experiment is to assign effective atomic number (Zeff) 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. 
Effective atomic number; Rayleigh and Compton scatterings; Intensity; ratio; effective atomic-number; compton-scattering; coherent