Overview of DIAMOND to European EPICS Meeting 99

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Progress Report on the DIAMOND Light Source to
the EPICS Meeting Santa Fe May 04
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Diamond

• Diamond is the new UK Synchrotron Light Source
• Located at the Rutherford Appleton Laboratory
  (RAL) Oxfordshire
• Due online early 2007 ( First beam SR Jan 2006)

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Diamond Accelerators
Linear accelerator (Linac) 100 MeV
energy Booster synchrotron 100 MeV - 3 GeV 158
m in circumference Storage Ring 3 GeV
energy 562 m in circumference
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Diamond Building Concepts
Courtesy of Crispin Wride Architectural Design
Studio, JacobsGibb Ltd.
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Storage Ring Building Jan 2004
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Storage Ring Building March 2004
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Booster March 2004
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Office Block March 2004
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Controls Group Aerial Photography
Angelos Gonias (pilot) and Yuri Chernousko
(camera operator)
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Control System Architecture

• Based on EPICS using Two Layer Model
• Primary interface to CS through VME IOCs
• Use VME64x, IP carriers, IP Modules and
  transition board for rear connection
• Hot Swap capability
• Will use PLCs to manage interlocks for
  protection
• Avoids Watch Dogs on IOCs and allow warm reboot
  of IOCs
• Omron CJ PLCs for low end applications, eg Vac
  Valve control
• Siemens S7/300 and S7/400 for high end
  applications, eg Linac and Cryoplant
• Serial Interface to Instrumentation
• Potentially several thousand
• Serial support through Stream Device and ORNL
  Serial

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Hardware

• Development
• Linux for Development
• Running EPICS 3.13.4 but moving to 3.13.9 but
  will also use 3.14.x
• Currently Tornado 2.02 but moving to Tornado 2.2
  to use MVME5500
• Consoles
• PCs running Linux RH 9.0
• Will support Win2000
• IOCs
• VME64x
• PPC Processor boards
• Evaluating MVME5500
• Will use IP carrier and modules
• Primarily 7 slot crates

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Generic Work IO Module Procurement

• Primary CS interface through Industry Pack IO
  Module from Hytec Electronics
• Included some EPICS support

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Linac

• Turn-key contract for 100 MeV Linac with Accel
  Gmb
• Includes installation and commissioning to a
  performance spec.
• EPICS Controls included in contract
• Uses Siemens S7 300 and S7 400 PLCs for control
  and protection of modulators and electron source
• Interfaced to IOC using Network connection

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Technical Systems PSUs

• 4 Large and 434 medium and 780 small PSUs all
  controlled by the PSI designed PSU controller.
• PSUs interfaced to IOC by high speed point to
  point link and IP modules
• Procurement Model
• DLS will design EPICS IOC functionality
• Large PSUs will be integrated into controls by
  DLS
• Medium supplies DLS will free issues IOCs, to be
  integrated at part of contract
• For Small Supplies DLS will design PSUs and
  integrate PSU controllers and IOCs
• Progress IOC software support for PSI PSU
  controlled tested
• Simulation model for all PSUs being constructed

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Technical Systems Diagnostics

• Electron Beam Position Monitors
• 207 EBPMS using Libera EBPM Detectors form
  Instrumentation Technology
• Undersampling of BPM signal and digital detection
  and signal processing within FPGAs
• Gives three data paths, trading off resolution
  and BW
• Embedded ARM processor board running Linux and an
  EPICS 3.14 server
• Network interface for general control
  functionality and other diagnostics and high
  speed SPF modules for global feedback system
• Other Diagnostics Includes Screens, Current
  transformers and Loss Monitors
• Screens will use CCD Cameras with FireWire
  interface to EPICS (S Hunts Talk)

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Technical Systems Vacuum

• 528 Gauges MKS937A Interfaced through serial
  connections using Stream Device
• 624 Ion pumps and 60 TSPs controlled by MPCs from
  Gamma Vacuum, interfaced through serial
  connections using ORNL Serial
• 139 vacuum valves controlled through Omron CJ PLC
  based valve control units
• Valve Control Units provide vacuum protection and
  interlocking
• PLCs interfaced through serial connections using
  ORNL Serial to support protocol CRCs
• Same PLCs used for MPS

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Technical Systems Girder Motion Control

• 72 Girders for Storage Ring
• Each girder has motorised Kinematic mounts to
  provide 5 degree of freedom so enabling auto
  alignment
• 360 axes of motion control driving concentric
  cams
• Each cell
• Three Girders or 15 axes
• Controlled by two OMS VME 58 controller cards in
  one IOC
• Procurement Model
• Turn-key solution from industry based on EPICS
  with industry delivering functionality to
  control each axis and manage protection
• DLS implements high-level algorithms and tools
  for girder alignment

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Technical Systems Insertion Device

• Common motion control system for all permanent
  magnet IDs
• In-Vacuum and Ex-Vacuum
• 6 axis motion control using OMS VME58
• Each beam two independent jacks
• Each beam has Phase change of magnet array
• 4 or 8 DC PSUs
• Synchronous operation of Axis and PSUs
• Synchronous operation of ID with BL mono
• Omron CJ PLC based protection sub-system manage
  safe operating window
• Procurement
• Contract design of prototype control system by
  industry based on EPICS controls ystem
• Manufacture of production control systems for
  all In Vac and Outer Vac devices by industry,
  against build to print
• DLS will provide detailed EPICS controls to synch
  ID to SR Magnetic elements and BL Mono

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SR RF System

• 3 SC RF cavities use Siemens S7 PLCs for Cavity
  Cryogenic Control
• 3 RF amplifier using combined output of
  Inductive Output Tubes and controls based on IOCs
  
• Single cryo-plant Siemens S7 PLC

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Machine Protection System (1)

• Machine Protection System manages interlocks on a
  global basis to protect components from damage
  caused by
• Stored beam in the case of
• loss of cooling
• loss of vacuum
• Obstructions in beam path
• Mis-steering of the beam
• Other potentially hazardous situations
• Storage Ring two protection circuits
• Vessel and Dipole
• Booster four protection circuits
• Vessel, Dipole, FQuad and DQuad

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Control Instrumentation Areas (CIA)

• CIA per Cell
• CIAs house instrumentation racks in a clean
  temperature controlled environment
• IOCs for each technical area
• Quad/Sext PSUs, Steerer PSUs, BPMS, Vacuum, MPS,
  Girder Alignment, 2x Front Ends, 2x IDs, PSS
• Design once, build 24
• CIAs linked to MCR using FOs Cables
• 2x Computer networks, Timing signals, Reflective
  memory, MPS, Video and Point to Point Analogues
• Minimise Copper connections CIA to CIA
• (See Tim Haytons Talk)

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Recruitment

• There are the following Vacancies in Diamond
  Controls
• DIA0058 Software Engineer Control System Toolkit
  
• DIA0059 Software Engineer Diagnostics
• DIA0060 Software Systems Engineer Photon
  Beamlines
• DIA0057 Electronics Design Engineer FPGAs
• See http//www.diamond.ac.uk/

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