A diagnostic tracing logger is presented for use in a multithread environment in which diagnostic trace log entries are captured and recorded. The measured spectra are readjusted by a change in variable that takes into account the energy of the scattered radiation and the angle of observation. One of the body engagement surface or the cover engagement surface includes a generally planar damping pad and the other of the body engagement surface or the cover engagement surface includes a cam having a generally curved cam surface. A pressing element is provided between the planetary carrier and the second gear for pressing the second gear by the elastic force. An anti-scatter grid, mounted inside the image receptor enclosure, just below the top cover of the enclosure, can be retracted out of the field of view of the image receptor for use in magnification imaging.