Post date: Mar 20, 2014 1:33:45 AM
Vertical BPM connection was fixed yesterday. There was a loose connection to the cable. The beam is expected sometime in the morning.
In order to find the optimum injection in vertical direction, scan three vertucal steering magnets in the injection line and see the coherent oscillation in the ring.
Both vertical electrodes show reasonable signals. Math function in the oscilloscope calculate the difference between two electrodes and gives clear side band peak after FFT. We will store two electrode signals with different D-mag current to survey vertical tune first. Then try to minimize vertical coherent oscillation with three knobs in the injection line.
Measured data using BPM at S7, S12.
https://drive.google.com/file/d/0B0q-OKLCj0rkTjlzZmdVS21yVGs/edit?usp=sharing
For D=950A and 1020A, S5V and S4Vp are scanned and vertical BPM is measured. This is the end of measurement today. Now, Uesugi-san start testing new vacuum tube for the acceleration test in the next week.