Figure 1
Stabilization of the X-ray beam exiting from the DCM. (a) Watlow controller, (b) Lakeshore controller. In each plot, Rear, Q-V_P and X-V_P represent the beam intensity through a pinhole 20 µm in diameter at the sample position, the vertical position of an X-ray beam measured by UHV QBPM, and the vertical position of an X-ray beam measured by RIGI, respectively. The average and the standard deviation of each plot were calculated with the first 30 min data.  [article HTML]