Embed Size (px)
Citation preview
Garry Trahern, Head of Integrated Control Systems
The European Spallation SourceControl System
2ICALEPCS11 Garry Trahern
Sweden, Denmark & Norway cover 50% of cost
The other 14 member states covers the rest, with the European Investment Bank
The ESS site is in Sweden !
Lund!
Evolution of neutron sources
Berkeley 37-inch cyclotron
350 mCiRa-Be source
Chadwick
1930 1970 1980 1990 2000 2010 2020
105
1010
1015
1020
1
ISIS
Pulsed Sources
ZINP-P
ZINP-P/
KENSWNR
IPNS
ILL
X-10
CP-2
Steady State Sources
HFBR
HFIRNRUMTR
NRX
CP-1
1940 1950 1960Effe
ctiv
e th
erm
al n
eutr
on fl
ux n
/cm
2 -s
(Updated from Neutron Scattering, K. Skold and D. L. Price, eds., Academic Press, 1986)
FRM-IISINQ
SNS
ESS
J-PARC
ICALEPCS11 Garry Trahern
4
5 MW beam power
2.5 GeV protons (H+)
2.9 ms pulses
14 Hz rep rate
50 mA pulse current
704 MHz RF frequency
< 1 W/m beam losses
7.5 MW upgradability?
No H- injection,
No accumulator/compressor ring !
Neutrons in 2019 !
Green field site
ICALEPCS11 Garry Trahern
5IPAC11, 110909 Steve Peggs
Scope of integrated control system
Ion source
Accelerator
Target station
Instruments
5
Everything from source to target, cryogenics & conventional facilities•Good for long-term maintainability•Get everybody on board at the beginning (when it is not ‘so hard’)•Organizational challenges are faced head-on
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
ESS Program Phases, Gates and Milestones
Program level
Accelerator
Target
Instruments
Conventional Facilities
Program InitiationProgram Initiation Program Set-upProgram Set-up Delivery of Contsruction phaseDelivery of Contsruction phase
PG3
PG2
PG1
PG4
Full beam power on target
Design Update
Prepare to Build
Construction
Technical Design Report
Design Update
Prepare to Build
Construction
Concepual Design
Installation 1-22
Installation
Design Update
Site preparation
Construction
# 7 List
Ground Break
Pre-construction phase
Operations
Installation
Design and Manufacturing 22 instruments
Construction
First Building
First Neutrons to Instruments
losure
Pre Construction Report
ESS Master Programme Schedule
ICALEPCS11 Garry Trahern
7
Current activities
Prepare-to-Build (P2B) provides 1) Prototyping & 2) Engineering Design Reports, in smooth transition from design to construction.
2011 2012 2013 2014 2015 2016 2017
2018 2019
TDRs with Cost & Schedule
International convention signed
Design Updates Construction projects
First protons
P2B projects
Cryomodule production starts
First neutrons
DUDU
P2BP2B
DUDU
P2BP2B
P2BP2B
Const.Const.
P2BP2B
Const.Const.
P2BP2BICALEPCS11 Garry Trahern
Projects to model on in terms of controls
• SNS• Similar in functionality to ESS• Real-life experience from SNS control system
• ITER• multi-lab and multi-nation project just like the ESS• A very large EPICS installation• ITER timeframe
- First subsystems integrated: 2013- Commissioning: 2018- Operation: 2019
8ICALEPCS11 Garry Trahern
9
Some architectural, design and organizational decisions
• ESS will use the EPICS control system.
• Linux will be the operating system in the ESS controls service tier.
• Provide a standardized “Control Box” platform to ESS partner institutions, with first prototype delivery in the design phase.
• Release Control Box software and hardware in (approximately) yearly cycles
ICALEPCS11 Garry Trahern
Control System Architecture – Control Box
10
Equipment Interface – Control Boxes
Central RoomCentral Services
IP over Ethernet
Power Supplies Sector AControl Box
RF Sector BControl Box
Gatway Archive Operator’s workstation
Other networks
Model
Control Box Provide a standardized solution
before teams develop their own A cornerstone in the 3 year
design update phase
Benefits Encourage consistency between
sub-systems including target, experimental
stations, cryogenics & CF Enable factory acceptance
testing of subsystems through control system,
Validate technology decisions, Minimize throw-away hardware
and software development
ICALEPCS11 Garry Trahern
Input Output Controller (IOC)
EPICS IOC
Channel Access
Device Support
Device Support
anal
og in
puts
Eth
erne
t/IP
PLC
Device Support
Intelligent Controller
Ethernet SwitchEthernet SwitchPROFINET TCP/IP, UDP/IP
PLC
PLC Intelligent Controller
Intelligent Controller
analog/digital I/O analog/digital I/O
Responsibility of the ESS integrators
Responsibility of the subsystem developers/integrators
Ethernet Switch
Oth
er
subs
yste
ms,
ce
ntra
l se
rvic
es,
cont
rol r
oom
, et
c.
A/D module
11
Control Box
Control Box consists of• Hardware• Software (IOC, OPI)• Procedures
Provides a clear split of responsibility among• Control system developers• Subsystem integrators
• Automatically generate as much of the control system's components as possible
• Principal input: a high-level description of the system (e.g., the accelerator's lattice)
Beam line elements database (BLED)
Use of system engineering tools and model-driven architecture
The database(s) contain: inventory information
(equipment and its location, reference to manuals, reference to purchasing information, …)
cabling, connectivity and topology information
control system process variables, processing rules, …
ICALEPCS11 Garry Trahern
13
Hardware platform selection
• How to select the hardware platform, main criteria• Usability• Longevity• NOT “top performance” or coolness factorAcceptance by majority in the industry.
• Selection process:• Stakeholders: controls, beam instrumentation, RF, …• First prototype decision on October 3: cPCI• Decision revised through prototyping and comparing notes
• Early prototype – learn from mistakes• Different groups – different experiences
• Objective approach: unified table for all platforms, arguments agreed upon by all groups
ICALEPCS11 Garry Trahern
14
Current status• Development environment
• ITER’s CODAC is taken as basis• 8 service servers hosting bug tracking, version control,
continuous integration …• Scientific Linux user development virtual machines
• Cross platform: Windows, Mac OS, Linux• Timing, MPS: gathering requirements
• Single source clock will be used• Naming convention finalized• End of 2012: First major deliverables
• Technical Design Report • Vertical prototype with Control Box (and manual)… complement each other.
ICALEPCS11 Garry Trahern
15
Summary
The European Spallation Source will be built in Lund.• The design of the CS should ensure a long life with many
upgrades.• The accelerator design, prototyping & construction is being
performed in a collaboration.
Use code and best practices from similar projects as much as possible
• Collaboration with SNS and ITER
Provide a working control system from the onset• Control Box, released in yearly cycles
ICALEPCS11 Garry Trahern
