Speaker
Dr
Yong Jun Park
(Pohang Accelerator Laboratory)
Description
Real-time monitoring of the beam position during whole measurement at synchrotron radiation facility is extremely important, since it is essential to maintain the stability of the X-ray beam on the sample point. When a very fine collimator is used before sample, the stabilization of the beam position in front of the collimator, should result in stabilizing the incident beam. Thus, there are several kind of the beam position feedback systems with the x-ray position monitoring system near sample position.
We developed the 4-channel processor which is adaptable to PSIC(Position Sensitive Ion Chamber) or XBPM (X-ray Beam Position Monitor). This all-in-one processor includes all electric devices (high voltage supply, current amplifier, analog-to-digital converter, etc) for X-ray position measurement. And, it’s available for use with rocal mode and remote mode.
The results of 2μm spatial resolution with PSIC is possible to apply as a XBPM for mostab FB (monochromator stabilizer feedback) system. Measured results and several calculated parameters (linear range, spatial resolution, positional uncertainty, etc) will be displayed. Whole data were collected and analyzed at the beamline of Photon Test Facility in PLS-II.
Keywords | XBPM, all-in-one processor |
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Primary author
Dr
Yong Jun Park
(Pohang Accelerator Laboratory)
Co-authors
Mr
Chae-Soon Lee
(Pohang Accelerator Laboratory)
Mr
Chun Kil Ryu
(Pohang Accelerator Laboratory)
Dr
Chungjong Yu
(Pohang Accelerator Laboratory)
Mr
In Deuk Seo
(Pohang Accelerator Laboratory)
Mr
Jung Su Kim
(Pohang Accelerator Laboratory)
Dr
Yongsam Kim
(Pohang Accelerator Laboratory)