slac aerial view
DESCRIPTION
SLAC Aerial View. SLAC Timing System Specifications. Blue Book: (~1968) Resolution: 50 nSec - Jitter: 15 nSec - Main Trigger Line Waveform: + / - 400 Volts. PEP – II: (~1998) - Resolution: 2.1 nSec - Jitter: 20 pSec - NIM Level Waveform: - PowerPoint PPT PresentationTRANSCRIPT
SLAC Aerial ViewSLAC Aerial View
SLAC Timing System SpecificationsSLAC Timing System Specifications
Blue Book: (~1968)
- Resolution: 50 nSec
- Jitter: 15 nSec
- Main Trigger Line
Waveform:
+ / - 400 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 UnitsHistorical MCC Timing Units
Machine CycleMachine Cycle
1 / 360 Second = 2.78 mSec
Timing System EnclosureTiming System Enclosure
Waveforms: 476 MHz with FIDUCIALSWaveforms: 476 MHz with FIDUCIALS
LINACLINAC
PEP - 2PEP - 2
Waveforms: 119 MHz and NIM PulseWaveforms: 119 MHz and NIM Pulse
FIDO OutputFIDO Output
PDU OutputPDU Output
SLAC LandscapeSLAC Landscape
Trigger Generation, simplifiedTrigger Generation, simplified
Sector 0 Trigger Generation, oversimplifiedSector 0 Trigger Generation, oversimplified
Trigger Generation, simplifiedTrigger Generation, simplified
Area Three, Rack OneArea Three, Rack One
Area One, Rack One CAMACArea One, Rack One CAMAC
Trigger Distribution: Sector 0 and 1Trigger Distribution: Sector 0 and 1
AMPLIFIERAND SPLITTER
SECTOR 0FEEDBACK
FIDO
FIDO
119DISTRIBUTION
119DISTRIBUTION
476 MhzFROMMDL
COUPLER476 Mhz TO
DAMPING RING
119 Mhzto CIDVAULT
119 Mhzto SECTORS
0 and 1
Klystron GalleryKlystron Gallery
Trigger Distribution: Damping RingsTrigger Distribution: Damping Rings
476 Mhzfrom
S0 Alcove
FIDO
119DISTRIBUTION
119 Mhzto
North Ring
FIDO
119DISTRIBUTION
119 Mhzto
South Ring
476 Mhz
LINAC Rack, FrontLINAC Rack, Front
LINAC Rack, RearLINAC Rack, Rear
MDL Coupled OutputMDL Coupled Output
LINAC Timing Sector TENLINAC Timing Sector TEN
FIDO
PDU PDU PDU
SECTOR 10SUB-
BOOSTER
476 Mhz 476 Mhz
476 Mhz
119 Mhz
Li09 Cr 4 Li10 Cr 2 Li10 Cr 3
MDL Coupler
Splitter
LINAC Timing DiagnosticLINAC Timing Diagnostic
Fiber Optic XmtrFiber Optic Xmtr
Fiber Optic LinkFiber Optic Link
FIBER OPTICTRANSMITTER
FIBER OPTICRECEIVER
TOP of S-30 SUB-Booster
Bldg 407
AMPLIFIERand
SPLITTERNLCTA TERM
Bldg 062
476 MHz
476 MHz
Bldg 407
NLCTA Trigger DistributionNLCTA Trigger Distribution
NLCTA TriggersNLCTA Triggers
FIBER OPTICRECEIVER
AMPLIFIERand
SPLITTER
476 MhzDistribution
Bldg 407 Bldg 407
Bldg 062
FIDO
476 Mhz
476 Mhz
476 Mhz
RF REFERENCESYSTEM
119 MhzDistribution
PDU
PDU
PDU
TERM
NLCTA Beam LineNLCTA Beam Line
PEP – 2 Timing GenerationPEP – 2 Timing GenerationMAIN DRIVE LINE
PEP - 2CONTROL
LINEDIST
CHASSIS
PEP - 2MASTER
OSCILLATOR476 Mhz
PHASE LOCKAND
INJECTIONFIDUCIAL
DETECTOR
PEP 2 FIDUCIAL GENERATOR125-843
POWER ANDVOLTAGE
MONITORS
PEP – 2 Timing EquipmentPEP – 2 Timing Equipment
PEP – 2 Timing DistributionPEP – 2 Timing DistributionTPLD
REGION12
TPLDREGION
10
TPLDREGION
2
TPLDREGION
8
TPLDREGION
4
TPLDREGION
6
PEP - 2MASTER
OSCILLATOR
PEP - 2FIDUCIAL
GENERATOR
PEP – 2 KlystronsPEP – 2 Klystrons
SLC Timing DistributionSLC Timing Distribution
SECTOR 30MDL
DISTRIBUTION
S30 MAIN DRIVE LINE
FIDO 119 DIST476 Mhz 119 Mhz
119 DIST
119 DIST
Spltr
119 DIST PDU
PDU
119 DIST
119 DIST 119 DIST 119 DIST
119 MhzBldg 751Bldg 757Bldg 750
Bldg 669
Bldg 136
Bldg 725
476 Mhz
119 Mhz
Bldg 136 Trigger DistributionBldg 136 Trigger Distribution
119 MHz Propagation in SLC119 MHz Propagation in SLC
Sector 30 “Source”Sector 30 “Source”
Final FocusFinal Focus
Some Timing ModulesSome 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 UnitFIDO Unit
FIDO B. D.FIDO B. D.
476 Mhz Splitter FIDUCIALDETECTOR
8 nSecONE-SHOT
2.5 mSecLOCKOUT
DIVIDEBy 4
DIVIDEBy 4
BANDPASSFILTER
RESETINHIBIT
DRIVER
DRIVER
PDUOUTPUTS
PSUOUTPUTS
PDU – SLC StylePDU – SLC Style
119 Mhz
DifferentialECL Output
To CAMACUpper Timing
Backplane
CounterDetector
Register
FromCAMAC
GlueLogic
RE-USE
Sixteen channels per PDU;
One channel shown
LINAC Timed CrateLINAC Timed Crate
PDU, Backplane, and STBPDU, Backplane, and STB
CAMACUpper TimingBACKPLANE
16 Channels
Designer’s original module names. Refer to Proverbs 26:11, KJV
PDU STB119 MHz
Delay Output Generator Voltage Monitor Interval Timer
FrontPanel
LEMOConnectors
NIMLevel
Outputs
16Channels
PEP – 2 Timed CratePEP – 2 Timed Crate
Vernier Delay UnitVernier Delay Unit
476 Distribution Unit476 Distribution Unit
476 MHz Distribution B.D.476 MHz Distribution B.D.
476 Mhz Splitter
AMP Splitter
Splitter
476 MhzTo FIDOs
VariableAttenuator
AMP476 MhzTo FIDOs
FIDOs and 119 DistributionFIDOs and 119 Distribution
119 MHz Distribution B.D.119 MHz Distribution B.D.
119 Mhz Splitter
AMP
AMP
119 MhzTo PDUs
119 MhzTo Next
Distribution Unit
SplitterVariableAttenuator
VariableAttenuator
TPLD Chassis Front PanelTPLD Chassis Front Panel
Timing Phase Lock Distribution B.D.Timing Phase Lock Distribution B.D.
Graphic by E.L.CisnerosGraphic by E.L.Cisneros
TPLD SCP Diagnostics 1TPLD SCP Diagnostics 1
TPLD SCP Diagnostics 2TPLD SCP Diagnostics 2
Some Triggered DevicesSome Triggered Devices
• Kickers• Single Beam Dumper
Logic• Beam Position
Monitors
• Toroid Charge Monitors
• Trigger Gate and Synchronizer
Damping Ring Kicker TriggersDamping Ring Kicker Triggers
Single Beam Dumper Logic ModuleSingle Beam Dumper Logic Module
Toroid Charge Monitor B.D.Toroid Charge Monitor B.D.
TOROIDon Beam Line
Ch 11 Trig
Ch 12 Enable
RocksRocks
Some Common Timing ProblemsSome Common Timing Problems
• Jitter• FIDO – related
Failures• Connections
• Bucket Jump• Undocumented
modifications
280280