AGENDA TTO follow up Run 11 -12 Goals Efficiency TTO FOLLOW UP P - - PowerPoint PPT Presentation

AGENDA

• TTO follow up
• Run 11 -12 Goals
• Efficiency

TTO FOLLOW UP

• P

. Krejcik wrote a synopsis of the Twin Bunch TTO project.

• I started a TTO website (with a link to it from the

Performance Program site)

https://portal.slac.stanford.edu/sites/lclscore_public/tto/SitePages/Home.aspx

GOALS FOR NEXT RUN

• Capability goals
• Stability goals
• Still missing Quality, Reproducibility, and Photon

EFFICIENCY

1/21/16

CONTROL ROOM REPORT

Efficiency 1.

• perators doing work outside of daily operation - need to add management

(working on that) mainly using project driven priorities, who are the customers? Hardware: priority is very roughly in order of list 1. Motion control is really painful except undulator 2. Laser cathode profile reproducibility 3. Laser motion control system is unreliable: steering and feedbacks, hysteresis, home is lost, resolution is poor for needs 4. Ability to recover from klystron cycles: feedback go wild, 6x6 is dumb (continued)

5. Klystron reliability / trip rate 6. Modulator upgrade fallout 7. Weak steering software: LTU feedback and steering, jitter, dispersion correction is lost 8. LLRF is not too bad according to Stanek - failure modes are difficult to detect 9. Timing system is ok: laser timing / phase timing; some new improvement is well liked: Frisch and Justin

• 10. Dispersion correction is poor. routines don’t converge and don’t cover

many areas of the beamline

• 11. Lutman setups are too hard
• 12. Need more one button push stuff
• 13. Flow charts for special setups would be helpful
• 14. Changing matrices when changing energies should be automatic: no hooks

for model

• 15. MPS just trips instead of rate recovery, some project is going but it

taking years

• 16. Phase error masked by feedback corrections

• Assign one LFD person to each item and ask

them to find out what the underlying issue is and what solutions are possible.

WHAT CAN WE DO