Timing and Event System

1. Timing and Event System

2. Undulator devices requiring timing triggers • 34 cavity BPMs each requiring 2 triggers • 33 BLMs, requiring 1 trigger per 8 BLMs

3. Event System Hardware counts for undulator buildings • Building 913 serves LTU and Undulator • 1 timing rack with 1 fanout • 7 VME EVRs and 4 PMC EVRs • Building 921serves Undulator and Dump • 2 timing racks 2 fanouts • 7 VME EVRs and 4 PMC EVRs for the Und • 2 VME EVRs and 4 PMC EVRs for the Dump • MRF event system hardware arrived last week • New 119 MHz timing distribution ready for installation • Reference RF to undulator BPMs • Provides high-reliability 360 Hz timing for undulator link node chassis for MPS BLMs

4. Timing and Event Architecture New LCLS Timing System Linac main drive line ~ Low Level RF FIDO Beam Synchronous Acquisition 119 MHz 360 Hz SLC MPG P N E T I O C E V G F A N LCLS events SLC events fiber distribution Precision<10 ps * EPICS Network • Digitizer • LLRF • BPMs • Toroids • Cameras • GADCs • SLC klystrons I O C E V R D E V TTL * m P P N E T S T B TTL-NIM convert. SLC Trigs *MicroResearch

5. Electron Beam System Timing Distributionplus new 119 MHz distribution for Undulator BPMS and MPS To BPMS and MPS 119 MHz Sync Chassis 119 MHz 119 MHz Sync Chassis 119 MHz Sync Chassis • New 119 MHz Sync Chassis at the RF Hut • send signal over existing fiber distribution plant • second Sync Chassis in MCC racks • third and fourth chassis in B913 and B921 To BPMS and MPS

6. Draft Schedule

7. Undulator extended break-out session • High availability from Controls Group • 7 pm Tuesday, Vino Locale • 31 Kipling St, Palo Alto, CA 94301 • Between University Ave and Lytton Ave