Control System Overview October 24, 2006 Hamid Shoaee for the LCLS Controls Group Outline Goals & Commissioning Schedule Injector Control System Installation Response to Previous Concerns Status update Summary

Controls Status Following the Last Review Concerns were expressed at the last review regarding the availability of the control system for injector commissioning in January Some specific issues… Lagging procurement, indicating slow progress in a number of areas Timely availability of high level applications software Lack of sufficient technical expertise in a number of areas, particularly in electronics hardware engineering Insufficient involvement of experienced SLAC engineering and technical staff to complete the product lifecycle from production to installation

The focus in the past eight months has been on timely installation of the injector Controls Complete the design of critical systems and follow through with system production Accelerate procurement activities to ensure availability for installation Align cable plant design and procurement with the project-wide installation schedule Collaborate with the physicists to ensure the availability of required software tools for machine commissioning Better use of Lab resources through integration with other departments and groups

Integration of LCLS Controls with other Departments & Groups at SLAC Following the last review, prepared a list of the required expertise to follow through with the Controls plans Identified individuals at SLAC who would be invaluable to the LCLS controls effort Obtained support and approval from Department heads and the directorate for the integration of the individuals with the project Formed “Engineering Teams” to address integration issues

LCLS Engineering Teams The goals for the Engineering Teams are: Multi-disciplinary teams to manage the full product lifecycle from specification and design to engineering development, production, installation and commissioning To ensure communication among all disciplines, and that all interface issues are addressed Each team has representatives from Controls, PCD, Mechanical Systems, Physics, CF, etc. Most recently, full integration of the LCLS & SLAC controls effort into one Controls Department

LCLS Accelerator and Compressor Schematic From P. Emma 6 MeV z  0.83 mm   0.05 % 135 MeV z  0.83 mm   0.10 % 250 MeV z  0.19 mm   1.6 % 4.30 GeV z  0.022 mm   0.71 % 13.6 GeV z  0.022 mm   0.01 % Linac-X L =0.6 m rf= -160 Linac-0 L =6 m rf gun L0-a,b Linac-1 L 9 m rf  -25° Linac-2 L 330 m rf  -41° Linac-3 L 550 m rf  0° 25-1a 30-8c ...existing linac 21-3b 24-6d 21-1 b,c,d undulator L =130 m X BC1 L 6 m R56 -39 mm BC2 L 22 m R56 -25 mm DL1 L 12 m R56 0 DL2 L =275 m R56  0 Commission in Mar. 2007 Commission in Dec. 2008 SLAC linac tunnel research yard

LCLS Installation and Commissioning Time-Line Injector Controls Installation Complete LTU/und. Install Controls Checkout LTU/und. hall “ready” First Spont. Light A S O N D J F M A M J J A S O N D J F M A M J J 2006 2007 2008 Gun/Inj./BC1 Install (8/21 – 2/20) Gun/Inj./BC1 Commissioning Inj./Linac/BC2 Commissioning linac/BC2 Install LTU/und. Commissioning Oct. 19, 2006

Injector Control System Installation Plan Control system installation is taking place in several stages Design, procurement & installation of cable plant including trays, long haul DC and I&C cables, terminations, etc. Phase 1 (Apr. ’06 thru Jun. ’06) Phase II (Aug. ’06 thru Dec. ’06) Procurement, preparation and installation of the electronics racks. Installation of electronics chassis, modules, and intra-rack wiring Installation of the Controls software on the production servers

Ortega DiSalvo Rodriquez Fuller Phase I Cable including Laser Room & LIT-01 Rack -Terminate Cables ..to BC1 Area Phase II Cable Plant -Install Trays, Cable -Terminate Cable

Phase II Cable Plant Schedule Phase II cable plant has been successfully designed and documented Davis-Bacon contract has been awarded. The procurement and installation is currently in progress All electronics racks have been received and installed in the field

PPS/LSS Rack Field Installation Patrick Bong PPS/LSS Rack Field Installation PPS/Laser Safety System (LSS) Field Installation (S20) LSS active for Laser room. PPS installation in process Certification December 18-24

Installation details will be presented in the breakout session With a few exceptions the procurement of control components has been completed Control system will be ready for pre-beam check out and Injector commissioning Systems are typically checked out on test stands, and field installation will be done by Davis-Bacon contractors.

Main Control Center Networks, Servers, & Workstations Lahey Zhou Brobeck Knopf Murray Production Systems Delivered Networks at S20 RF Hut & MCC: physical and wireless LCLSDMZ, LCLS private, wireless MCC infrastructure built: power & racks First group of LINUX servers: applications & data archiving Control Room Workstation in 4 & 2 monitor configurations Control Room Stations S20 Laser Room is actively in use to commission laser Main Control Center (MCC) Control Room space is allocated, installing 3 Workstations & laptop work areas MCC Foyer: additional work areas for workstations & laptop use Data archiving, alarm systems, configuration management, error Logs, etc. Artemis problem reporting & tracking facility Electronic logbooks for Operations and Physics AIP network upgrade at MCC for gigabit traffic to support digital control room

Update April 2006 – October 2006 (1) Luchini Bellomo McNair de Lira Magnet Controls & PS HW & SW Status Final Design Review conducted successfully 6 new racks Installed in Sector 20: Sep 24, 2006 EPICS Software Almost all functionality is implemented and tested SLC-aware magnet control and monitor - done provides interface between magnet devices and the legacy control system System Integration on Nov 10, 2006

Vacuum Controls Status Assembled test stand: PLC, gauge controller, pump controller, IOC Installed all long haul cables Procurement and bench testing of COTS vacuum controllers finished Most equipment installed in racks in Sector 20 (exceptions: PLC crates, valve control panels) Intra-rack wiring complete Schuh J. Bong Porter Nguyen

Safety Systems PPS BCS LCLS Injector PPS Reviews are Complete RSC ‘conditional approval’ obtained Hardware drawings, wiring diagrams are complete; installation in progress BCS Direct measurements of radiation or beam loss Protection of safety-critical collimators & stoppers Hardware is nearing readiness for installation Original ‘Mode-switching’ BCS proposal has been sidelined for now Propose an ‘Interim BCS’ where conservatively “All BCS faults shut-off all Guns.” Bennett Traeger Alarcon

Update April 2006 – October 2006 Safety Systems Interim MPS Using existing linac infrastructure (1553 MPS) Adding new signals and devices Interim MPS will be used for gating beam Single Shot Mode Burst Mode MPS algorithm is responsible for both LCLS and CID beam Pockels cell and MPS mechanical shutter limit laser rate on cathode Hardware procurement is almost complete and installation will be completed in early December Final MPS There is a conceptual design for a system to protect the undulator Norum Alarcon Tilgeman

Injection Laser Control System The injector laser stabilization system includes two feedback loops The first loop includes two mirrors, each with two actuators and one camera. It stabilizes laser traveling through a 10-meter tube The second loop includes one mirror with two actuators and adjusts the laser position on the cathode. The IOC reads the image from camera, calculates the laser’s position error and applies a correction to the actuators. The loop operates @ 1 Hz, and the camera is synced to 120Hz. The prototype of the first loop has been tested for several months and works well. Peng, et al

Newport XPSC8 Motion Controller Pentium 4 PC based vxWorks powered Support up to eight motors Ethernet control interface Digital I/O and analog I/O built-in

Image Acquisition EDT PMC DV C-Link Cameralink compatible PULNiX TM-6710CL camera CCD: 1/2” Shutter: Full Frame UV option: Yes Resolution: 648x484 Progressive: Yes External Trigger: Yes Full scan: 120Hz Analog Output: Yes Cameralink: Yes EDT PMC DV C-Link Cameralink compatible 32bit/66MHz PCI

EPICS screen of digitized images We have a total of 21 OTR & YAGs of which 14 are needed for commissioning The equipment consists of UniqVision UP900CL-12B camera EDT PMC Cameralink® interface EDT RCX Cameralink®/Fiber converter Profile Monitor Controller is built in SLAC to handle pneumatic, filter, lens and bulbs Acromag Digital I/O module IP445/440 are used in IOC to interface with Profile Monitor Controller.

Toroid and Faraday Cup Cecere Dusatko Peng Smith Browne We have a total of 14 Toroids and 2 Faraday cups of which 6 Toroids and 2 Faraday cups are needed for commissioning Beam Charge Monitor Chassis is built in SLAC to handle signal conditioning, integration and MPS interface. Acromag IP330 ADC is used in IOC to interface with Beam Charge Monitor Chassis. 4-Channel fast ADC is built at SLAC to image dark current for FC01, FCG1 and IM01, IM02(optional).

Bunch Length Monitor Peng Fuller Frisch There are 2 Bunch Length Monitors needed for commissioning BL11, BL12 The amplifier is built in SLAC to handle signal conditioning. 4-Channel fast ADC is built in SLAC to read the signal. A Solenoid Controller is built in SLAC to handle filters and pneumatic actuators. Acromag Digital I/O module IP445/440 are used in IOC to interface with Solenoid Controller.

Wire Scanner Detector Locations 7 Wire Scanners for Injection Commissioning Hardware Assembled, Tested (without beam), Calibrated, and currently being installed Software is 80% complete Require further testing of PMTs and Ion Chambers for acquisition of Wire data Murray J. Bong Porter

Injection Wire Scanners after Assembly 6 of the 7 wire scanners, shown here awaiting calibration. Currently, all calibrated and on their way downstairs.

LLRF Hardware Available for Injector Turn-on Linac Sector 0 RF Upgrade All 3 RF Chassis Installed (Master Oscillator, Master Amp, PEP phase Shifter Control Module ready for test – higher phase noise levels if not installed Sector 20 RF distribution system Phase and Amplitude Controllers (PAC) – 5 units Phase and Amplitude Detectors (PAD) – 2 units Phased Locked Oscillator – Use SPPS unit for Turn On LO Generator, Multiplier 476MHz - 2856MHz, 4 distribution chassis – Complete Laser Phase Lock – Prototype needs testing – Only high risk item Distribution Amplifiers – 10W, 2850MHz due Oct 25, 102MHz Amp being built LLRF Control and Monitor System 1 kW Solid State S-Band Amplifiers – 5 units – Design Complete, In Fabrication PAD – 12 units – 6 required for turn on PAC – 6 units Beam Phase Cavity Will use 2 channels of PAD Chassis Pill box cavity with 2 probes and 4 tuners – 2805MHz 3 units Complete Akre Kotturi Hill

LLRF Software for Injector Turn-on PAD & PAC Software – Operational Local Feedback (in VME) Data analysis shows simple feedback algorithm will work. Optimization of algorithm continues. Time measurement: measure time needed for data acquisition, for transfer to VME, for VME processing, for transfer to PAC. Time measurement: needed for multiple local loops. RF Gun Temperature Feedback – In Design Calibration and Test – Operational High Level Applications – In progress Storing of boot parameters, etc in flash or on the board for PAD and PAC

Timing System Progress since April, 2006 Allison Dusatko Kotturi Browne Brown Krejcik Zelazny Rogind All electronics boards are COTS, procurement is completed Hardware problems identified and fixed 119MHz clock input – no divide-by-one available on EVG, special chip added to board to provide direct clock input Two test stands equipped and available Identified EVR IOCs and triggers needed for early commissioning Tasks in progress with a tight deadline Interface control document Hardware testing – jitter, fanout testing, etc Software testing Beam-synch-acq implementation Alpha version in November, beta in December Cabling plans and documentation Triggering conditions (when to trigger and which event code and delay to use) are pushing more logic from EVG IOC to EVR IOC

~ Timing Architecture Linac main drive line ÷4 FIDO ReSychronizer SLC 476 MHz 120 Hz LCLS ÷4 FIDO ReSychronizer 119 MHz 360 Hz SLC MPG P N E T E V G I O C SLC events LCLS events LCLS Digitizer LLRF BPMs Toroids Cameras GADCs Old klystrons I O C E V R Tr ans TTL m P P N E T P D U TTL-NIM convert. SLC Trigs

High Level Applications – Change in Direction Fariley Zelazny Chevtsov The original plan for high level applications called for making use of both the XAL and SLC applications suites The applications group has been temporarily re-assigned to other tasks Supporting Timing System, Feedback, Magnet control, etc. The new plan for Injector commissioning calls for… Making heavy use of MATLAB for application development Providing access to most control subsystems from MATLAB Enlisting the support of accelerator physicists in developing some of the required applications The Applications Group to provide the MATLAB interface to the accelerator data and the supporting infrastructure To migrate the applications to the XAL environment at a later date

High Level Applications Through discussions with LCLS physicists we have identified the required software for injector commissioning Prio rity Injector Devices to be Scanned by Correlation Plots 1 Magnet settings (BDES) XCOR, YCOR, SOLN, QUAD, BEND, BTRM, LGPS RF phase settings (PDES?) for gun, L0a, L0b, L1, Lx, and TCAV0 RF amplitude settings (VDES?) for gun, L0a, L0b, L1, Lx, and TCAV0 Drive-laser x, y pointing on cathode (or feedback set-point)?

High Level Applications Required high level applications software Correlation Plots Buffered Acquisition Orbit Applications Multiknob Image Management Emittance, Slice Emittance, Beta Matching Energy Spread and Slice Energy Spread Bunch Length Measurement On-line model Configuration management

Many application are available from the legacy control system

Applications provided in MATLAB Image Management Bunch Length Measurement Emittance and Energy Application

Next Six Months Linac MPS design PS procurement Linac Cable plant Linac BPM electronics upgrade PS procurement Undulator Controls XES LUSI

Breakout Session 5 – CONTROLS Location – Redwood B, Bldg 48 Oct 24 4:00 Controls Overview H. Shoaee 4:30 Laser Control, Profile monitors, OTR, YAG S. Peng Oct 25 8:00 Racks, Wiring, AC Distribution M. Ortega 8:30 Personnel Protection Systems P. Bong 9:00 Machine Protection Systems S. Norum 9:30 Beam Position Monitors S. Smith 10:00 Break 10:30 Low Level RF D. Kotturi 11:00 Vacuum Control S. Schuh 11:30 Wire Scanners D. Murray 12:00Lunch 1:00 Power Supplies K. Luchini 1:30 Timing system P. Krejcik 2:00 High Level Applications Software Diane Fairley

Conclusions Great progress has been made in the past eight months towards readiness for injector installation We have had to make a few interim adjustments to meet the commissioning deadlines The collaboration with other departments at SLAC has proven very productive While commissioning the injector, we need to be aware of the installation schedule for the rest of the machine including the experimental areas Through collaboration with the physics group we are ensuring the availability of required applications software for injector commissioning.