Abstract:A study has been made of the Compton scattering of 1,12-MeV gamma rays by K-shell electrons of tin, tantalum, gold, lead, and thorium. K x rays of target atoms were detected in coincidence with the scattered gamma rays. A careful investigation of false coincidences has been carried out. The ratio der~/do. F of the Kshell electron cross section to the Compton cross section for a free electron at rest was determined at serveral angles between 25' and 120'. The cross-section ratio in the case of gold and thorium … Show more
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