view article
Figure 3
(a) Design of the (pseudo channel-cut) crystal set-up. The precise and stable alignment of the Bragg condition with submicroradian accuracy of the Si-111 crystals (shown in gray) is assured by the large picomotor (Newport, red) and piezo actuator (Physik Instrumente, PI, pink) on the long lever arm (blue), which is attached to the supporting plate (yellow). Details of the arrangement are also displayed in the inset (side view): the piezo actuator (left) is directly attached to the lever arm, whereas the picomotor (right) is fixed to the supporting plate. The alignment of the horizontal trajectory of the beam through the channel is tuned by an additional small picomotor (red) pushing against a short lever arm (green) on top of the system. (b) Realization of the dispersive Si-111 crystal collimation set-up based on two optimized pseudo channel-cut crystals. Two beam monitors are also included. Note that the first and second sets are not identical for symmetry reasons. The beam path is indicated for the case of the Si-333 reflection.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 26| Part 2| March 2019| Pages 439-444
https://doi.org/10.1107/S1600577518016892
Follow J. Synchrotron Rad.
Sign up for e-alerts
E-alerts
Follow J. Synchrotron Rad. on Twitter
Twitter
Follow us on facebook
Facebook
Sign up for RSS feeds
RSS