# Presentation: 089287

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

## Diamond

| Electron Beam Energy | 3 GeV |
| --- | --- |
| Storage ring circumference | 561.6 m |
| Number of cells | 24 |
| Straight section lengths | 6 x 8 m ( 4x ID, RF & Injection)
18 x 5 m |
| Beam current | 300 mA(500 mA) |
| Emittance (hor., vert.) | 2.7, 0.03 nm rad |

**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****) **

## 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

## Diamond Building Concepts

***Courtesy of Crispin Wride Architectural Design Studio, JacobsGibb Ltd.***

## Storage Ring 

**Storage Ring **
**Building **
**Jan 2004**

## Storage Ring 

**Storage Ring **
**Building **
**March 2004**

## Booster 

**Booster **
**March 2004**

## Office Block 

**Office Block **
**March 2004**

## Controls Group Aerial Photography

**Angelos Gonias (pilot) and**
**Yuri Chernousko**** ****(camera operator)**

## 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
**	**

## 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

## Generic Work: IO Module Procurement

**Generic Work: IO Module Procurement**

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

## 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

## 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**

## 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 Hunt’s Talk)

## 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

## 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

## 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

## 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 **

## 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

## 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 Hayton’s Talk)

## 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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