advanced accelerator applications (aaa) low energy demonstration accelerator
DESCRIPTION
Advanced Accelerator Applications (AAA) Low Energy Demonstration Accelerator (LEDA). LEDA Status. Advanced Accelerator Applications—Low Energy Demonstration Accelerator Recently completed the Beam Halo Experiment Fielded new systems Magnets on Halo beamline - PowerPoint PPT PresentationTRANSCRIPT
Deb Kerstiens (11/26/2001) - 1
Advanced Accelerator Applications (AAA)Advanced Accelerator Applications (AAA)
Low Energy Demonstration AcceleratorLow Energy Demonstration Accelerator
(LEDA)(LEDA)
Deb Kerstiens (11/26/2001) - 2
LEDA Status
Advanced Accelerator Applications—Low Energy Demonstration Accelerator
Recently completed the Beam Halo Experiment
Fielded new systems Magnets on Halo beamline New wire scanner and halo scraper mechanisms and software Vacuum for halo beamline
Successful data acquisition Data analysis shows good correlation with models Verification of halo leads to questions about why More to come…
As of last week, future uncertain but bleak
Deb Kerstiens (11/26/2001) - 3
LEDA Beam Halo Challenges
Diagnostics Wire scanner / Halo scrapers LabView -> EPICS Automated scans and scrapes through EPICS sequence/OPI
Magnets 52 magnet latticeon Halo beamline
4 quadrupole singlets 48 quadrupole bulks/ 6 bulk supplies with 8 shunts
Field Point I/O Ethernet IP LabView-> EPICS
Control System Integration Run permit
Operations support Many different systems Support systems, data taking, EPICS, UNIX, Labview, all tools
Deb Kerstiens (11/26/2001) - 4
Control System for the LEDA 6.7-MeV Proton Beam Halo Experiment
Ethernet (Channel Access)
Consoles,Control Room
Server(File Server, Archiver, ….)
GPIB2 Bus
PLC
FP
LAN
…
FP
FP
…
GPIB-IOC Field-Point-IOC
Steerer PS
Quads PSVacuum System
Stepper Motor-IOC
Diagnostic Control
VXI-IOCs
Bea
m S
top
Injectorand
LEBTHEBTHALORFQ
High PowerRF Systems
Wav
e G
uid
e
Deb Kerstiens (11/26/2001) - 5
LEDA Lessons Learned
Fielding new hardware in an upgrade Behind schedule When it doesn’t work
No local experts or support
Let the engineer program it LabView is “easy” but
All programs are different Novice vs. expert
More layers to debug No revision control Guess who gets called
Control System Integration Run permit
vxStats Can’t guarantee run permit when you don’t have into
Archiving, time stamps
Operational Support Communication Teamwork/support
Deb Kerstiens (11/26/2001) - 6
LEDA Lessons Learned
“Maintenance nightmare” Many different systems
few people to support them Need to call “experts” to troubleshoot
Revision control No consistency Can’t enforce
What Worked Well: Operations support
Assigned, on-call Responsive
ELOG Archiving Standard EPICS systems