Triple differential cross section in (e,2e)(e,2e) collisions for atomic potassium

In this Letter we report the results of our calculations using the Modified Semiclassical Exchange Approximation in the Distorted Wave Born Approximation to determine the (e,2e)(e,2e) cross section for Potassium. The results are compared with the experimental and theoretical studies. The effect of post collision interaction has also been studied.