Measurement of proton microbeam profiles in atmosphere produced by single tapered glass capillary optics with an end window

Abstract

Synopsis Profiles of 2.8 MeV H+ microbeam extracted from a single tapered glass capillary optics were meas-ured by two methods for a future irradiation to an outer organ of insect target. The halo component was analyzed to be 575 μm in full width at half maximum (FWHM) at a plastic tracking detector CR-39 located 1 mm down-stream of the capillary. The core component was examined by knife-edge method according to the ion energies. The profiles consisting of more energy-loss events have wider FWHM, which can be reduced by Al thin layers.

A Study of the Transmission of 10-keV Electrons through a Ceramic Macrochannel

“…Currently, experiments involving ions with an energy on the order of several MeV are aimed at application of micrometer radiation for analysis of materials, surface modification, cellular surgery, etc. [1]. Such studies for electron beams are under way.…”