PRESENT STATUS OF THE POSITRON FACTORY PROJECT AND DEVELOPMENT OF POSITRON BEAM TECHNIQUES

摘要

A preliminary experimental result confirmed a possibility to study defects in silicon with an internal positron source produced by a proton beam from a cyclotron. A pulsed MeV positron beam, which can be applied for detailed bulk defect analysis of wider range of materials, is under construction. In the design study for the Positron Factory, a feasibility of simultaneous extraction of multi-channel monoenergetic positron beams was demonstrated by an experiment using an electron linac.