Project of ultrahigh-vacuum double-crystal monochromator

The project is aimed at the development of ultrahigh-vacuum mechanics and c onstruction of devices with features allowing high-precision work in a warm ed-up volume. The fundamental part of projected monochromator is a precise linear motion mechanism, linear stage, which can bear a warming-up in vacuu m up to t = 400 degreesC without any change in its parameters. It is the te nse friction wave transmission that serves to transfer the motion to the st age in the vacuum volume. The mechanism for precision tuning of the second crystal also has an original design and its compactness allows an easier so lution of many design issues concerning the whole monochromator, (C) 2001 E lsevier Science B.V. All rights reserved.