Study of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>L</mml:mi></mml:math>-shell x-ray production cross section of cadmium by proton bombardment

Abstract

The $L$-shell x-ray production process in cadmium for proton bombardment over the energy range 120 - 420 keV was studied using thin Cd targets (\ensuremath{\sim} 30 \ensuremath{\mu} g/${\mathrm{cm}}^{2}$). The x rays were observed with a high-purity Ge low-energy-photon-spectroscopy detector. The total x-ray cross sections were determined at 20-keV intervals in the bombarding energy range. Experimental cross sections were compared to the predictions of the nonrelativistic plane-wave Born approximation and the perturbed stationary-state theory with relativistic and Coulomb deflection corrections (CPSSR). The total $L$-shell x-ray cross sections are in reasonable agreement with the CPSSR theory. The complex $L$ x-ray spectrum was resolved into several components and the relative x-ray cross sections of these components were determined.