SLAC Aerial View
SLAC Timing System Specifications Blue Book: (~1968) - Resolution: 50 nSec - Jitter: 15 nSec - Main Trigger Line Waveform: + / Volts PEP – II: (~1998) - Resolution: 2.1 nSec - Jitter: 20 pSec - NIM Level Waveform: 0 to –0.7 V into 50 Ohms
Historical MCC Timing Units
Machine Cycle 1 / 360 Second = 2.78 mSec
Timing System Enclosure
Waveforms: 476 MHz with FIDUCIALS LINAC PEP - 2
Waveforms: 119 MHz and NIM Pulse FIDO Output PDU Output
SLAC Landscape
Trigger Generation, simplified
Sector 0 Trigger Generation, oversimplified
Trigger Generation, simplified
Area Three, Rack One
Area One, Rack One CAMAC
Trigger Distribution: Sector 0 and 1
Klystron Gallery
Trigger Distribution: Damping Rings
LINAC Rack, Front
LINAC Rack, Rear
MDL Coupled Output
LINAC Timing Sector TEN
LINAC Timing Diagnostic
Fiber Optic Xmtr
Fiber Optic Link
NLCTA Trigger Distribution
NLCTA Triggers
NLCTA Beam Line
PEP – 2 Timing Generation
PEP – 2 Timing Equipment
PEP – 2 Timing Distribution
PEP – 2 Klystrons
SLC Timing Distribution
Bldg 136 Trigger Distribution
119 MHz Propagation in SLC Sector 30 “Source” Final Focus
Some Timing Modules FIDO PDU (SLC) PDU (PEP – 2) Simple Timing Buffer VDU 476 MHz Distribution 119 MHz Distribution PEP – 2 Timing Phase Lock and Distribution
FIDO Unit
FIDO B. D.
PDU – SLC Style Sixteen channels per PDU; One channel shown
LINAC Timed Crate
PDU, Backplane, and STB
PEP – 2 Timed Crate
Vernier Delay Unit
476 Distribution Unit
476 MHz Distribution B.D.
FIDOs and 119 Distribution
119 MHz Distribution B.D.
TPLD Chassis Front Panel
Timing Phase Lock Distribution B.D. Graphic by E.L.Cisneros
TPLD SCP Diagnostics 1
TPLD SCP Diagnostics 2
Some Triggered Devices Kickers Single Beam Dumper Logic Beam Position Monitors Toroid Charge Monitors Trigger Gate and Synchronizer
Damping Ring Kicker Triggers
Single Beam Dumper Logic Module
Toroid Charge Monitor B.D.
Rocks
Some Common Timing Problems Jitter FIDO – related Failures Connections Bucket Jump Undocumented modifications
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