The determination of lattice strain in proton-bombarded regions of single-crystal gallium arsenide, using precision X-ray measurements

Abstract
Using X-ray methods capable of detecting changes in lattice parameter of a few parts per million, the residual damage in proton-bombarded gallium arsenide has been detected. The lattice strain in the bombarded region has been determined at approximately 200 ppm for a dose of 2*1015 cm-2 at 600 keV. The lattice dilation per defect, following the bombardment, has also been estimated at 10-20%.