Transcript Program Upgrades, Downtime Planning, Resources for the PEP-II B-Factory John T. Seeman DOE PEP-II Operations Review April 26, 2006

Program Upgrades,
Downtime Planning,
Resources
for the
PEP-II B-Factory
John T. Seeman
DOE PEP-II Operations Review
April 26, 2006
OPS Review Topics
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Does the program have adequate resources (i.e.
manpower, funding, etc) allocated to carry out the
plans?
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Is laboratory management effectively tracking
progress?
Topics
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Run Planning
 Run
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PEP-II Performance Goals:
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Less than 3 aborts per day
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< 1 RF abort per day
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< 1 radiation abort per day
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< 1 “all other” abort per day
Uptime >> 90%.
 Run
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Operation
statistics
Abort statistics
PEP-II Scheduling
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PEP-II Accelerator Run Planning is done with:
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Laboratory Director (J. Dorfan)
Particle and Particle-Astrophysics Directorate (P. Drell)
Assistant Director of PPA for Accelerator Systems (J. Seeman)
PEP-II Run Coordinator (U. Wienands)
BaBar Spokesman (D. MacFarlane)
BaBar Technical Coordinator (W. Wisniewski)
BaBar Run Coordinators (J. McKenna, G. Bonneaud )
Technical staff
Power Manager (G. Loew)
Operations Head (R. Erickson)
Spokespersons of other small experiments.
Scheduling Committee
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Scheduling Committee
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Scheduling Committee members:
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J. Seeman (Chair), R. Erickson, C. Field, J.
Weisend, W. Wisniewski, R. Hettel, P. Pianetta, D.
Schultz, R. M. Boyce
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Meeting every few months as needed.
 Propose
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running schedule to the Directorate
Provides power requirements versus month.
Accelerator Schedule
Over all PEP-II Down Schedule 2004-2010
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2005 down:
October 11-November 15
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2006 down:
August - November, 2006.
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2007 down:
September – November 2007
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Every downtime is planned in great detail (See available handouts).
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PEP-II Task Force Structure to review risks
April 2006
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Ongoing Accelerator Improvement Projects (AIP)
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X-Y BPM upgrades
New HER Q5 vacuum chambers
New HER/LER Q2 chambers
HER-10 RF station
HER-11 RF station
HER power supply upgrade for higher tunes
New HER Q4 vacuum chambers
NEW IR2 Q2 bellows
LER IR HOM absorber
HER IR HOM absorber
LER BPM monitor upgrade
LER new high power bellows
LER NEG vacuum chamber upgrade
New Longitudinal feedback processor
2005-2006
2005-2006
2006
2006
2006
2006
2006
2006
2006
2006
2006
2006
2006
2006
Cost of remaining AIP projects is about 7 M$ spread over two years.
PEP-II AIP expenditures from 1999-2005 averaged about 5 M$ each year.
Projects reviews for Accelerator Division Hardware Projects
All projects for PEP-II this year!
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Management: Reliability is important
Reliability/Tuning Task Force: Mattison/Himel
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Work more to reduce “aborts.”
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Reduce “tuning time” after aborts or repair outage.
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RF group is making very steady progress but have more to
do to fix root causes.
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ARTEMIS reporting system is a good recording tool.
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PEP-II “tune” feedbacks could use improvements.
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Upgrade dither feedbacks at the IP.
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Area managers: Upgrade turn-on check lists.
Delivered luminosity matches prediction since March 1.
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Today
FFTB removal delay
Vacuum repair
Prediction start date
April 20, 2006
Lab Management: Future PEP-II Overall Parameter Goals
Parameter
Units
Design
Present in
collision
2007 goal
I+
mA
2140
2940
4000
I-
mA
750
1720
2200
1658
1732
1732
Number
bunches
by*
mm
15-20
11
8.5
Bunch length
mm
15
11-12
9
0.03
0.044-0.065
0.054-0.07
xy
Luminosity
x1033
3.0
10
20
Int lumi / day
pb-1
130
728
1300
Over three times design
Five times design
New Integrated Luminosity Projection March 2006
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2007
down
2006
down
Long Time Comparison
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Compare:
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March-June 2003 with
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July-September 2005
Look at:
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Time accounting
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MTTF, MTTR
Reveal failures
Run 5a Run-Time Accounting
Two years ago
Now with reliability
improvements and
trickle injection
M. Stanek
B. Allen
R. Erickson
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January 15, 2006
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Luminosity
LER current
HER current
PEP-II Highest Luminosity October 9, 2005
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1034
RF aborts November 22-28, 2005 (Van Winkle)
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RF Aborts December 10-16, 2005 (Van Winkle)
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Weekly Operations Reports
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Keep track of running hours
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Assign lost hours to hardware areas
Weekly Report September 26-October 2, 2005 (Erickson, Stanek)
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September 26-October 2, 2005 (Erickson, Stanek)
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Weekly Report January 2-8, 2006 (Erickson, Stanek)
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PEP-II Down Statistics
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Reports to DOE
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Account for running hours
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Report integrated luminosity
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Quarterly reports
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Weekly update reports
FY2003 Run performance (Stanek)
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FY2004 Run Performance (Stanek)
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FY2005 Run Performance (Stanek)
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FY2006 Run Performance (Stanek)
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PEP-II Conclusions
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SLAC management has set luminosity goals and we track our
progress against those goals.
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Teams are in place to study PEP-II operations, accelerator
physics, and to improve reliability methods and root causes.
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Operators, engineering staff, technicians, and maintenance
people are in place to carry out the PEP-II program.
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We track carefully the abort rates and outages to improve
reliability, uptime, and average luminosity.
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Short term abort rate was high in December 2005 – March 2006
due to new vacuum related instabilities. Abort rates are much
lower now that the vacuum repairs have been made.
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Resources are adequate carry out the program.