Method determining depth profile of radioactive isotope activity, involves determining activity of removed layer by measuring activity of radioactive isotopes, and inserting measuring values and layer thickness values into activity profile

摘要

The method involves preparing a reference body (1), that is provided with radioactive isotopes, in an activation region (2) close to a surface. A layer (x1-xn) of a material on a measuring region (3) of the body is removed. Thickness of the removed layer is determined by comparison with reference marks (R1-R3). An activity of the removed layer is determined by measuring an activity of the isotopes, before and after the removal of the material layer. The radioactive activity measuring values and the layer thickness values are inserted into an activity depth profile. Independent claims are also included for the following: (1) a measuring system for determining a depth profile of an activity of a radioactive isotope on a reference body (2) a method for tribometric, high-resolution online determination of wear on sample bodies (3) a measuring arrangement for tribometric, high-resolution online determination of wear on sample bodies.