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Figure 3
Attitude tuning of the polycapillary lens on 4W1B at BSRF. In the bottom left is a command-line backend window where commands provided by  lib_ 4w1b.py can be entered; other windows on the bottom monitor the detector readings and motor positions. At the top is the mamba.attitude.capi_ frontend window, where 1D and 2D projections of the motion trajectories in the configuration space are monitored. In this window, brighter dots indicate better values for the evaluation function; in the 1D view in the left-hand pane, better values are also plotted with lower vertical coordinates. We also note that the convergence of the tuning procedure was decided by the operator, mainly depending on the detector readings after repeated runs, as the motors involved had no encoders and BEPC II was running in its decay mode.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 32| Part 4| July 2025| Pages 924-933
https://doi.org/10.1107/S1600577525003960
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