March 13, 2017 - 4-Laser/LLRF Installation/Commissioning

Let's meet Monday March 13th at 11am in the MCC conference room to organize 4-LLRF installation and commissioning. Please come prepared to speak to relevant items below, and/or invite those whom should attend. We'll end the meeting with a ~firm plan that Steve can post to the SAD calendar.

Topics

1. Plan for 4-LLRF installation
2. Software controls and screen readiness
3. FSD implementation and testing
4. First connection to lasers, manual testing 249/499
5. Remote HLLAP control of laser frequency
6. Repair bunch length
7. Schedule for beam operations
8. Beam tests: chopper, bunch length, energy spread
9. Dry run for Fall 4-beam ops
10. Running during the summer
11. Installation of final system
12. Any other topic you'd like to discuss

Summary

4-LLRF Installation

• Prototype 4-LLRF on track for SAD, requires about one week for install and RF testing media:4Laser_LLRF_March_ready.ppt
• FSD interface will monitor 35/70 MHz signals, thresholds set in EPICS, Rama will work w/ Brad to connect to FSD system
• As known, system will not detect 499MHz flip, requires upgrade of MO distribution for 250MHz
• Rama/Scott/Clyde will meet before/during
• Present laser RF remains in rack, new 4-LLRF installed by buncher/chopper RF, 4-LLRF application recycles existing RF channel names
• Michele's HLAPP test will happen once manual control tested okay
• Bench test isolation between RF channels >45 dB
• Tomasz wants to know how precisely power level set for 10 dBm

4-Beam Testing