# Presentation: 410935

## Progress Report on the DIAMOND Light Source to the EPICS Meeting Spring '02

## What Is DIAMOND?

**DIAMOND is the new UK Synchrotron Light Source**
**Located at the Rutherford Appleton Laboratory (RAL) Oxfordshire**
**Medium energy source**
**Complement ****ESRF**
**Due online early 2007**

## Major Parameters

**Energy****	****	****	****	****	****3 GeV**
**Beam current****	****	****	****300 mA**
**Lattice****	****	****	****	****	****DBA 24 cells**
**Symmetry****	****	****	****	****6 fold**
**Circumference****	****	****	****561 m**
**Max length for ID's****	****	****18 x 5m**
**	****	****	****	****	****	****	****6 x 8m**
**Injection ****	****	****	****	****100MeV Linac**
**	****                  ****	****	****	****	****3GeV Booster**

## Recent Developments

**Completion of conceptual design phase March 02**
- Publication of the design report, “Green Book”
- Draft 1 is now out for peer review
- Draft 2 will be made widely available from August 02
**DIAMOND Light Source Ltd created March 27th**
**Budget approved at £235M**
**Appointments**
- Chief Executive 	Gerd Materlik
- Tech. Director 		Richard Walker
- Interim Science Directors, Finance Director and Head HR
- Recruiting technical group leaders

## Programme Plan

**April****	****2002****	****	****Initiate procurement**
**April****	****2004****	****	****Building weatherproof**
**Aug****	****2004****	****	****Storage ring services available**
**Jan****	****2005****	****	****Building complete**
**Feb ****	****2005****	****	****Linac acceptance**
**Nov****	****2005****	****	****Booster acceptance**
**Dec****	****2005****	****	****Start storage ring commissioning**
**Feb****	****2006****	****	****Beamlines installed (start May 05)**
**May****	****2006****	****	****Storage ring commissioned**
**May****	****2006****	****	****IDs installed (start Feb 06)**
**May****	****2006****	****	****Instruments ready for beam tests**
**Sept****	****2006****	****	****Instruments ready for research**

## 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
- Selecting preferred PLC and Interface to IOC
- 	Have looked at Modbus now evaluating EthernetIP
**Serial Interface to Instrumentation**
- Potentially several thousand
- Serial support through Stream Device and ORNL Serial
**	****( See P Owens presentation on Thursday)**

## Hardware		

**Development**
- Evaluating Linux for Development
- Running EPICS 3.13.4
**Consoles **
- Either PCs Running Linux or Workstations
- 	Evaluating both, decision 2003/2004
- Will support NT
**IOCs**
- VME64x
- PPC Processor boards
- 	Select processor 2002/2003
- Will use IP carrier and modules
- Primarily 7 slot crates

## Initial Assessment of IOCs

-          *     	LL RF, Cavites, Amplifiers, PSUs and Cryo plant
-          **   Linac, Booster and Tx Paths

## Naming Convention

**DDD[-SSS]-TTT-CCCCC-NN****[:sss]:rrr**
**	****	****	****DDD ****	****   Domain**
**	****	****	****SSS ****	****   Sub  Domain Optional****	****	****Device Name**
**	****	****	****TTT ****	****   Technical Area**
**	****	****	****CCCCC Component**
**	****	****	****NN****	****    Identifier**
**	****	****	****sss****	****    Sub System Optional****	****	****Record Ref**
**	****	****	****rrrr****	****    Record**
**Examples **
- LIN-VAC-PIRG-01:ILK:B01
- Linac, Vacuum, Pirg 1, Interlock, bit 1
- SR-A01-PSU-QUAD-01:IMON
- Storage Ring, Arc 01, PSU, Quad, 1, Current monitor

## Relational Data Base

**IOC Development Cycle**
- VisualDct to produce templates and other tools for subs list
- Store in CVS for role back
- Instantiate Templates
- Load all record and fields into RDB
- 	Manage alarms, op limits etc through RDB forms
- Export to produce EPICS DBs
**Looking at SNS, SLS & BESSY experiences**
**Manage Physics parameters and other static information in RDB**
**Link to Apps through CDev**
**RDBMS Oracle**

## DIAMOND Layout

## Injector Layout

## Girder Design

## Control Room Layout

## Architect’s Vision of DIAMOND

**Image Courtesy of JacobsGIBB Ltd / Crispin Wride Architectural Design Studio**