Wear Diagnostics of Machine Parts with RI-Beam Implantation

Abstract

Radioactive tracers with life times from several weeks to a few years are applicable for wear diagnostics of machine parts. We are developing a radioactive-ion (RI) beam implantation method for this purpose using ⁷Be and ²²Na from an in-flight RI beam separator CRIB at RIKEN. According to beam studies, we had enough RI-beam intensity and implantation depth for wear diagnostics and the depth profile was reproduced by calculations with measured energy distribution of the RI beams and SRIM calculation for the energy degraders.