1. FLDt First Line Diagnosis tool ‘The fault analysis tool for the ISIS Accelerator’ Update Oct 2014 WAO Mainz
Julian Brower CEng FIET
Section Leader
ISIS Accelerator Performance Improvement (IAPI)
My Name is Julian Brower
I work at ISIS, part of the STFC in Oxford England
My Talk today will; introduce ISIS,
and a way we are starting to reduce downtime using FLD

2. FLDt update ISIS and its operations ISIS availability FLDt the system
FLDt implementation
Using FLDt
Results of using FLDt

3. Rutherford Appleton Laboratory, Oxfordshire
ISIS foothills of the Downs 10 miles south of Oxford
ISIS was started in 1985 and running continuously for 28 years
This is the complex and the spoil forming the hill to the right from TS2
See diamond in the distance

4. ISIS accelerators H ion source (17 kV) 665 kV H RFQ 70 MeV H linac
800 MeV proton
synchrotron
Extracted proton
beam lines
The accelerator produces a
pulsed beam of 800 MeV
(84% speed of light) protons
at 50 Hz, average beam current
is 200 A (2.5× 1013 ppp) therefore
184 kW on target (148 kW to TS-1 at 40 pps,
36 kW to TS-2 at 10 pps).
Slide courtesy of J Thomason

5. World class Spallation Neutron Source since 1985
Flagship STFC facility ~360 staff
Up to 800 experiments/yr, 450 papers/yr
Research fields
clean energy
environment
pharmaceuticals
health care
nanotechnology
materials
engineering IT
World class facility
One of the flagship facilities for the Science and Technology Facilities council,
ISIS employs 340 staff
Over the 28 years has achieved 400 publications a year, sum in total
The research fields focus on the worlds grand challenges; energy, environment, pharmaceuticals, healthcare, nanotechnology, materials science, engineering and IT.

6. Operating ISIS 4 man crew, 8 hour shifts Duty Officer, 3 others
First line faults
Existing experience, skills and knowledge
Supported by on call equipment owners 24/7
1hr lost time reports
5 crews, each 4 men, 8 hour shifts,
Duty Officer, Assistant DO and two support crew
They deal with all first line faults
Use existing skills and knowledge to analyse faults. Broad range of experience and skills, some having worked on ISIS for 20+ years
On call system for specialists

7. User Cycles 120-150 (180) days/yr, 4-5 x 30 day cycles
Experiments ½ day – 2 weeks
1 day maintenance day mid cycle (2013)
Overall availability 85% +
Reasons for non availability
Machine age
Running an accelerator
Running harder (>90% availability)
Speed to faults
Loss of expertise

8. ISIS Availability over last 5 years
User cycles

9. Availability history Total run hours 894hrs Beam on target 790.6hrs
Lost time hrs
Overall availability 88.4%
Total run hours 1200hrs
Beam on target hrs
Lost time hrs
Overall availability 89.9%
Total run hours 1199hrs
Beam on target hrs
Lost time hrs
Overall availability 90.3%
Ions source produces H- ions
1st accelerations in the RFQ to 665 KeV
4 stage Alvaraz LINAC running at 202.5Mhz accelerating to 70MeV
800MeV Synchrotron running
ISIS runs at 50Hz typical

10. Improving availability
Sustainability, replacing obsolete equipment
Cycle wash up meetings, trend analysis
Understanding the machine physics
Improving machine diagnostics
Minimise fault finding time

11. Largest areas unavailability RF Injector(LINAC), Ion Source, Extract, Inject
Gave us staring point to focus resources
We want to cover all ISIS eventually

12. Improving availability by effective fault resolution (FLDt project)
Interactive fault analysis tool
Technical knowledge base at point of need
Access to centralised resources
Reduce beam downtime
5 years initial project
Permanent ongoing maintenance

13. FLDt, a network of interconnected flow diagrams, with links to technical information and resources

14. Standardised FLDt format
Interactive Fault Analysis Pathway

15. Risk assessments
Word search
Live scopes
Annotated diagrams
Circuit diagrams
Appendices

16. Procedures
Movements
Spares

17. FLDt coverage PC accessible Presents information in a Web Page Format
Available online throughout 70% of ISIS
Crew issued with IPADs
PC accessible
Wi-Fi accessible

18. Workflow Stage 1 Stage 2 Stage 3 Stage 4 Identify
Population of content
Verification
Delivery & feedback
Meeting with EO’s
Crew fault scenarios
LTR’s and MCR Log (operational issue
EO’s self develop
Feedback
Updates
Tracking and
revisions

19. Results (based on 2 user runs)
Statistics
Crew feedback
Affects on down time
Unintended consequences

20. Statistics

21. Crew feedback
IAPI produce next FAP
IAPI act on feedback
Duty officer

22. Effects on down time 6 recorded incidents on LTR’s (1hr +)
Availability (%)
6 recorded incidents on LTR’s (1hr +)
in 1 cycle, but it’s too early to tell

23. Additional benefits Developing skills and knowledge
Equipment owners focus
Fits management’s sustainability model
Joined up knowledge base
Communication between groups
Focus on spares (future integration)
Common nomenclature framework

24. FLDt deliverables/timescales
220 Fault pathways (600 for 70% equipment coverage)
Wi-Fi connectivity over 70% of ISIS (end of LSD)
One additional staff to facilitate growth
Now on annual appraisals
Metrics and feedback growing
Aiming for >10% lost time saving/year by 2017

25. Danke Thank you Merci