Development of thin film multilayer neutron and X-ray optics

Over the last few years, a comprehensive facility has been developed at A and MPD, BARC for development of large area thin film multilayer devices for application in synchrotron and neutron based experiments for condensed matter research. This includes a 9 m long in-house developed in-line magnetron sputtering system and a state-of-art dual ion beam sputtering system. The devices being fabricated regularly in these systems include long strip-type synchrotron mirrors, multilayer X-ray mirrors, neutron supermirrors and supermirror polarisers. The performance of these devices are found to be comparable with international standards and these devices are employed in real applications in neutron and synchrotron facilities. (author)