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2009 Accelerator Update Archive
December 18, 2009 - December 21, 2009
The integrated luminosity for the period from 12/14/09 to 12/21/09 was 51.27 inverse picobarns.
NuMI reported receiving 6.38E18 protons on target during this same period.
- Four stores provided ~62.25 hours of luminosity
- Store 7444 had an AIL of 306E30
- BRF19 cavity suffered a vacuum failure and was removed
- The Booster West Anode Power Supply suffered some problems
December 16, 2009 - December 18, 2009
- Three stores provided ~45 hours of luminosity
- PBar kicker problem
- MI RF problems
December 14, 2009 - December 16, 2009
- Four stores provided ~42 hours of luminosity
- Recycler kicker repaired
- Booster East Anode Power Supply trips due to BRF1, 2, & 8
December 11, 2009 - December 14, 2009
- Two stores provided ~64.5 hours of luminosity
- Pelletron accessed and repaired
- Multiwires installed in MI-8 transfer line
- MI abort kicker problems
- Meson MT5E magnet installed
December 9, 2009 - December 11, 2009
- Four stores provided ~10.25 hours of luminosity
- Store #7423 aborted due to a LCW valve failure
- Store #7424 aborted due to cryo system power outage
- The TeV sector C4 LCW tripped off due to another valve problem
- The Pelletron suffered many discharges
December 7, 2009 - December 9, 2009
- Three stores provided ~44.25 hours of luminosity
- Ground-faulted magnet found in MTest beamline
- Booster ICW leak repairs
- Booster kicker problem repaired
- LRF2 problems resolved
December 4, 2009 - December 7, 2009
The integrated luminosity for the period from 11/30/09 to 12/7/09 was 49.6 inverse picobarns. NuMI reported receiving 6.65E18 protons on target for the same period.
- Six stores provided ~64.5 hours of luminosity
- MTest magnet suffers possible ground fault
- NuMI and MiniBooNE reported good running
December 2, 2009 - December 4, 2009
- Three stores provided ~45 hours of luminosity
- Recycler vacuum problem fixed
- MI kicker trips resolved
November 30, 2009 - December 2, 2009
- Four stores provide ~27.75 hours of luminosity
- Store 7407 quenched
- MTest experiment T992 begins taking beam
- Wednesday morning accesses and necessary repairs
November 25, 2009 - November 30, 2009
The integrated luminosity for the period from 11/23/09 to 11/30/09 was 46.57 inverse picobarns.
NuMI reported receiving 7.6E14 protons on target during this same period.
- Seven stores provide ~83.25 hours of luminosity
- TeV quench during shot setup
- MI LCW ran without CUB due to regulation problems
- TeV dipole cause problems for CDF and D0
- Pelletron read-back problems held off stashing for short time
- MIRF2 developed LCW leak
- P1 transfer line suffered from vacuum burst
- RF personnel helped Operators bring BRF9 online
- NuMI and MiniBooNE reported good running
November 23, 2009 - November 25, 2009
- Three stores provided ~44.25 hours of luminosity
- LRF5 problems resolved
- MI-52 kicker power supply fixed
- Happy Thanksgiving
November 20, 2009 - November 23, 2009
The integrated luminosity for the period from 11/16/09 to 11/23/09 was 330.16 inverse pico barns. The total NuMI beam sum for this same time period was 6.21E14.
- Five stores provided ~ 32.75 hours of luminosity
- LRF4 and BRF9 repaired
- MI-40 abort kicker repaired
- Store 7373 aborted
- Pelletron high voltage regulation problems
- TeV quench at sector A4 during shot setup
November 18, 2009 - November 20, 2009
- One store provided ~29 hours of luminosity
- TeV sector A2 cryo leads repaired
- TeV sector A1 dipole magnet aligned
- Cryo controls power supply failure delays shot setup
- H- Source extractor repaired
November 16, 2009 - November 18, 2009
- Two stores provided ~25 hours of luminosity
- TeV sector A2 power lead problems
- P1 transfer line power supply failure
- NuMI record for protons on target set
November 13, 2009 - November 16, 2009
The integrated luminosity for the period from 11/9/09 to 11/16/09 was 51.07 inverse pico barns.
- Fours stores provided ~ 43.25 hours of luminosity
- CDF required an access to repair equipment
- LRF5 filament repaired
- Recycler beam valve closure caused loss of stash
November 11, 2009 - November 13, 2009
- Three stores provided ~31.75 hours of luminosity
- Tevatron quench
- NuMI lambertson (LAM61) failed
- MI Lambertson (LAM42) failed
November 9, 2009 - November 11, 2009
- Three stores provided ~35.5 hours of luminosity
- H- Source vacuum pump repaired
- Controls finds bad Pbar repeater
- NuMI intensity lowered
- MI Lambertson (LAM42) failed
November 6, 2009 - November 9, 2009
- Five stores provided ~58.75 hour of luminosity
- 400 MeV chopper tube replaced
- LRF3 LCW leak repaired
- TeV quenched at A4 during shot setup
November 4, 2009 - November 6, 2009
- Four stores provided ~38.5 hours of luminosity
- NuMI, Booster, and MI accesses
- Pbar lithium lens trips
- Store 7323 aborted
- Booster chopper problems
- LRF3 developed LCW leak
November 2, 2009 - November 4, 2009
- Four stores provided ~42.5 hours of luminosity
- MTA conducted timeline studies
- Cryo installed new lead flow valve at A2
- MI conducted slipstacking studies
- H- Source water skid work completed
- Recycler access to check vacuum today
October 30, 2009 - November 2, 2009
The integrated luminosity for the period from 10/26/09 to 11/2/09 was 45.48 inverse pico barns.
- Five stores provided ~ 48.25 hours of luminosity
- MI-52 affected by humidity
- TeV crystal collimator studies
- H- Source out drop corrected
- Store 7307 aborted
- TeV quench during shot setup
- Pelletron failure required access and repairs
- MI vacuum front end problem discovered
October 28, 2009 - October 30, 2009
- Four stores provided ~28.25 hours of luminosity
- FESS cleaned RF pond water strainer
- MI vacuum system rebooted
- TeV sector A4 cryo system lost control power
- CAMAC front ends and TCLK required reboot
October 26, 2009 - October 28, 2009
- Three stores provided ~42 hours of luminosity
- FESS cleans TeV sector F0 pond water strainer
- CDF luminosity counter calibrated
October 23, 2009 - October 26, 2009
- Five stores provided ~57.5 hours of luminosity
- FESS cleaned the F0 pond water strainer
- P1 transfer line trips due to power supply
- Pbar autotune program rebooted
October 21, 2009 - October 23, 2009
- Three stores provided ~43.25 hour so luminosity
- Linac flushed the I- Source water resistor
- Switchyard personnel established beam to the MTest area
- Power supply caused NuMI beam permit trips
October 19, 2009 - October 21, 2009
- Three stores provided ~37 hours of luminosity
- TeV power supply (D0Q2) leak repaired
- Linac front end replaced
October 16, 2009 - October 19, 2009
- Three stores provided ~49 hour so luminosity
- Beam successfully sent to the Switchyard dump
- TeV quench during shot setup
October 14, 2009 - October 16, 2009
- Three stores provided ~40 hours of luminosity
- Switchyard and MI personnel conducted MI-52 septa studies
- Store 7270 quenched
October 12, 2009 - October 14, 2009
- Three stores provided ~35.5 hours of luminosity
- TeV studies
- Two hour access on Wednesday morning for Booster, MI, NuMI, and MiniBooNE
October 9, 2009 - October 12, 2009
The integrated luminosity for the period from 10/5/09 to 10/12/09 was 45.03 inverse pico barns.
- Five stores provided ~56.75 hours of luminosity
- Linac power supply problems
- Booster power supply problems
October 7, 2009 - October 9, 2009
- Four stores provided ~ 41.75 hours of luminosity
- Linac output problems
October 5, 2009 - October 7, 2009
- Two stores provided ~25.75 hours of luminosity
- Tevatron cyro and vacuum problems
- Tevatron B48 separator power proble
October 2, 2009 - October 5, 2009
The integrated luminosity for the period from 9/28/09 to 10/4/09 was 40.73 inverse pico barns.
- Three stores provided ~51.5 hours of luminosity
- Three TeV quenches during shot setup
- Power supply repairs held off NuMI
- Accumulator magnet LCW leak
- NuMI horn trips
- Backup helium compressor brought online
September 30, 2009 - October 2, 2009
- One store provided ~11.5 hours of luminosity
- TeV quadrupole power supply work completed
- NTF bend magnet power supply replaced
- The TeV quenched with no store
- TeV sector C4 Kautzky valve replaced
September 28, 2009 - September 30, 2009
- Four stores provided ~ 29.5 hours of luminosity
- Trouble with TeV quadrupole power supplies
- NuMI switched to anti-neutrino mode
- Store 7226 aborted
September 25, 2009 - September 28, 2009
The integrated luminosity for the period from 9/21 to 9/17 was 27.1 inverse pico barns.
- Three store provided !20.25 hours of luminosity
- Store 7209 aborted
- TeV sector F1 quench due to kicker trip
- Booster found problem with sextupole ramp
- Recycler stashed 454E10 or antiprotons
- TeV RF APS repaired
September 23, 2009 - September 25, 2009
- Four stores provided ~ 26.5 hours of luminosity
- MI vacuum leak repaired
- MI-52 kicker problems due to humidity
- Store 7206 aborted
September 21, 2009 - September 23, 2009
- Three stores provided ~35.25 hours of luminosity
- Pelletron turned off to fix controls, regulation, and CDC PLC problems
- MI-30 suffering from vacuum bursts
- MiniBooNE down for air conditioning work
- MI vacuum and septa problems require access
September 18, 2009 - September 21, 2009
The integrated luminosity for the period of 9/14/09 to 9/20/09 was 19.01 inverse pico barns.
- Six stores provided ~ 54.0 hours of luminosity
- MI-10 power supply PLC card replaced
- TeV quench at A1 and F4
- Operators replace TeV C1 HFU capacitor bank
- MiniBooNE off for HVAC work
September 16, 2009 - September 18, 2009
- Two stores provided ~21.75 hours of luminosity
- Booster notcher fixed
- NuMI kicker repaired
- MI-40 vacuum improving
- MiniBooNE beam will turn off on Monday morning for vacuum work
September 14, 2009 - September 16, 2009
- Store 7183 provided ~10 hours of luminosity
- Pbar stacked antiprotons
- Recycler stashed antiprotons
- NuMI horn trip
- Pbar cryo system problems halted stacking
September 11, 2009 - September 14, 2009
- Pbar began stacking
- Recycler stashes Antiprotons
- TeV startup progressing
- NuMI and MiniBooNE taking beam
- MI might access on Tuesday
September 9, 2009 - September 11, 2009
- MiniBooNE continues to take beam when available
- TeV safety system test completed
- Beam established to MI, Recycler and Pbar
- TeV and NuMI should receive beam on Friday
September 7, 2009 - September 9, 2009
- Pbar bake completed
- MI bake extended to Tuesday
- TeV cooldown continues
- Neutron Therapy Facility treating patients
- MI bake equipment will be pulled out on Wednesday
September 4, 2009 - September 7, 2009
- MiniBooNE taking beam
- TeV ground fault found
- Pbar bake completed
- MI bake continues
- TeV possibly cold Tuesday night, 9/7/09
August 28, 2009 - September 4, 2009
- Linac: Replaced attenuators and mixer for 750 KeV Line Buncher
- Booster: Tuning, improving efficiencies, and increasing beam intensity
- Pbar: Bake in progress for sectors A10, A50, and A60
- MI: Lambertson and beam pipe bake in progress
- TeV: Luminosity counter replaced at sector B0
- NuMI: Target hall work completed
- Cryo: 99.99% of all scheduled maintenance has been completed
- CDF: Detector has been closed
- D0: Ready for search and secure
- FESS: Chiller #3 work continues
- MiniBooNE: Taking beam
- Run Coordinator declares that the startup has begun
August 31, 2009 - September 2, 2009
- MI beam pipe repairs continue
- Pbar developed vacuum problem
- CUB Chiller #3 passed pressure test
- Beam to MiniBooNE today
August 28, 2009 - August 31, 2009
- Vacuum leak found on MI-40 Lambertson beam pipe
- Pbar critical devices interlocks checked
- MI hipotted
- MiniBooNE should begin taking beam 9/1/09
August 21, 2009 - August 28, 2009
- Linac: I- Source problems
- Booster: Running beam
- Pbar: Transitioning to startup
- MI: Lambertson vacuum leak
- Recycler: Failed components in Pelletron fixed
- TeV: D1 passed hipot
- NuMI: Have low intensity run plan
- Cryo: A1 heat exchangers plugged due to contamination
- FESS: Chiller #3 work continues
- Alignment: All work completed except MTA, D0, and Switchyard
August 14, 2009 - August 21, 2009
- Linac: 400 MeV beam to dump on 8/17/09
- Booster: Completed GMPS installation on Saturday
- Pbar: Accumulator kicker upgrade and Debuncher magnet replacement completed
- MI: All MI-40 kickers are in the tunnel
- Recycler: Power supplies, HLS installation, and six magnet moves all completed
- TeV: The "to do" list has gotten very small
- NuMI: Completed target survey
- Safety: Two recordable injuries, both minor
August 7, 2009 - August 14, 2009
- Linac: H- Operational
- Booster: GMPS work 95 percent complete
- Pbar: Kicker upgrade 95 percent complete
- MI: On schedule for beam on August 31st
- Recycler: should be able to close up the Pelletron by August 19th
- TEV: 10 of the 12 bad stands have been replaced
- Safety: Two back strains in the past week
July 31, 2009 - August 7, 2009
- Linac: Painting I- Source room
- Booster: Repair leaks in East Gallery LCW system
- Pbar: kicker tanks developed internal electrical problem
- MI: eCloud components ready for installation
- Recycler: ECool on track for 8/19/09 startup
- TeV: working two shifts
- NuMI: Hadron monitor fixture installed
- Controls: AD Network isolation test on 8/6/09
- FESS: Kautz Rd bus duct cleaning
- Safety: No injuries reported
July 24, 2009 - July 31, 2009
- Linac: Painting I- Source room
- Booster: Repair leaks in East Gallery LCW system
- Pbar: kicker tanks developed internal electrical problem
- MI: eCloud components ready for installation
- Recycler: ECool on track for 8/19/09 startup
- TeV: working two shifts
- NuMI: Hadron monitor fixture installed
- Controls: AD Network isolation test on 8/6/09
- FESS: Kautz Rd bus duct cleaning
- Safety: No injuries reported
July 17, 2009 - July 24, 2009
- Preaccelerator: New source and generator for H-
- Booster: All correction 36 magnets installed
- Pbar: Debuncher septum magnet repaired and passed hipot
- MI: MI-10 backfill nearly complete
- Recycler: Pelletron maintenance 50% complete
- TeV: Crystal collimator bake out nearly complete
- NuMI: Installed backup pumps and sumps for pre-target drains
- Cryogenics: Repair of 22 engines completed
- Controls: Prep for weekend control system outage due to power outage
- FESS: Casey's pond shut down on Saturday for Zebra Mussel inspection
- Safety: One injury requiring first aid
July 10, 2009 - July 17, 2009
- Proton Source GMPS upgrade 90% complete
- Pbar kicker upgrade 70% complete
- Main Injector - all cores bored in MI-10 and MI-40
- Recycler Pelletron maintenance 30% complete
- Tevatron magnet unrolls 80% complete
- NuMI horn LCW leak repair completed
- Cryo System - warming TeV sector F3 to room temperature
- Controls installed the MTA switch-box
- MTA has completed the shield work
- MSS - all work completed
- Safety - no injuries reported
June 29, 2009 - July 10, 2009
- H- Source dome cleaning in progress
- Correction element upgrade 80% complete
- Accumulator kicker upgrade 50% complete
- Pelletron maintenance 20% complete
- Tevatron has six houses to fix
- NuMI completed investigation of horn cooling leak
- Alignment has completed 456 survey
- Safety has had no shutdown related injury for this time period
June 19, 2009 - June 26, 2009
- Shutdown report
June 15, 2009 - June 19, 2009
First five days of shutdown.
- NTF treats patients
- Pbar - power was off on Thursday
- Linac, NTF, and Electron cooling personnel conduct studies
June 12, 2009 - June 15, 2009
The integrated luminosity for the period from 6/8/09 to 6/15/09 was 50.64 inverse pico barns.
- Two stores provided ~32.75 hours of luminosity
- Machine personnel conduct last minutes studies
- Pbar lithium lens trip
- ES&H and Operations personnel prepare areas for access
- Shutdown begins
June 10, 2009 - June 12, 2009
- Three stores provided ~39.5 hours of luminosity
- Booster GMPS brought online
- MiniBooNE off ahead of shutdown
- Machine experts conducting last minute studies
- Shutdown begins 6/15/09 at 8 AM
June 8, 2009 - June 10, 2009
- Four stores provided ~38.25 hours of luminosity
- Booster power supply (GMPS) work continues
- Machine studies
June 5, 2009 - June 8, 2009
The integrated luminosity for the period from 6/1/09 to 6/8/09 was 45.62 inverse pico barns.
- Four stores provided ~36.25 hours of luminosity
- Store 7119 aborted due to TeV power supply LCW leak
- Pbar held off for Debuncher power supply LCW leak repair
June 3, 2009 - June 5, 2009
- Four stores provided ~29.5 hours of luminosity
- Pelletron come back online
- Store 7106 lost due to abort
- Store 7109 terminated due to air compressor trip
- TeV quench with no store
June 1, 2009 - June 3, 2009
- Two stores provided ~46 hours of luminosity
- Pelletron developed high voltage problems
- Pbar dry engine flywheel repaired
- MTest T979 experiment ends current run
May 29, 2009 - June 1, 2009
The integrated luminosity for the period from 5/25/09 to 6/1/09 was 51.59 inverse pico barns
- Four stores provided ~37.5 hours of luminosity
- H- Source problems fixed
- Store 7097 quenched at B0
- TeV suffered a D0 quench with no beam
- TeV C4 wet engine valve replaced
May 27, 2009 - May 29, 2009
- Three stores provided ~ 25 hours and 15 minutes of luminosity
- Linac extraction power supply problems
- Tevatron Fiber Abort Repeater problems
May 25, 2009 - May 27, 2009
- Three stores provided ~36.5 hours of luminosity
- TeV quench at D0
May 22, 2009 - May 25, 2009
The integrated luminosity from 5/18/ to 5/25 was 32.5 inverse pico barns.
- Fours stores provided ~56.25 hours of luminosity
- MiniBooNE air conditioning problems fixed
- H- Source brought online
May 20, 2009 - May 22, 2009
- Two stores provided ~7.25 hours of luminosity
- MI-42 quadrupole magnet replaced
May 18, 2009 - May 20, 2009
- Three stores provided ~18.75 hours of luminosity
- Quadrupole magnet replaced at MI-42
- D0 required 8-hour access for necessary repairs
- TeV quench during shot setup
May 15, 2009 - May 18, 2009
The integrated luminosity for the period of 5/11/09 to 5/18/09 was 58.04 inverse pico barns.
- Four stores provided ~67 hours of luminosity
- Pbar Debuncher injector kicker repaired
- Meson M01 LCW trips trouble MTest
- MI Quadrupole magnet suffered ground fault
May 13, 2009 - May 15, 2009
- Three stores provided ~25.75 hours of luminosity
- MTest shut off due to LCW leak and power outage
- TeV quench during shot setup
- Linac personnel fix more LRF4 problems
- Recycler has bulk power supply trouble
May 11, 2009 - May 13, 2009
- Three stores provided 39.5 hours of luminosity
- LRF4 driver and switch tube replaced
- Recycler kicker trip
- Pbar Debuncher septum problems
May 8, 2009 - May 11, 2009
- Four store provided ~32.5 hours of luminosity
- TeV quench during shot setup
- LRF4 repaired
- B0 QPM communication problems resolved
May 6, 2009 - May 8, 2009
- Three stores provided ~ 31 hours and 30 minutes of luminosity
- Problems with Linac RF station 4
- Problems with Booster RF
May 4, 2009 - May 6, 2009
- Three stores provided ~ 41 hours and 30 minutes of luminosity
- Problems with Linac RF station
- Problems the NuMI dehumidifiers
May 1, 2009 - May 4, 2009
- Five stores provided ~52 hours of luminosity
- Four hour access into TeV A-E
- Problems with the Klystron Debuncher
April 29, 2009 - May 1, 2009
- Fours stores provided ~43 hours of luminosity
- Pbar suffered transfer sequencer problems
- 5/1/09 - 4 PM, four hour access into TeV A-E
April 27, 2009 - April 29, 2009
- Four stores provided ~ 38.5 hours of luminosity
- NuMI autotune problems
- Tuesday day shift accesses for maintenance
April 24, 2009 - April 27, 2009
The integrated luminosity for the period from 4/20/09 to 4/27/09 was 47.42 inverse pico barns.
- Three stores provided ~9.5 hours of luminosity
- TeV quench and store 2997 lost due to cold box failure
- LRF2 repaired
- I- Source water resistor compression fitting repaired
- Recycler sets New Record Stash: 502.85E10
- Booster and MI will access on 4/28/09
April 22, 2009 - April 24, 2009
- Four stores provided ~44.5 hours of luminosity
- Recycler injector coolant pump repaired
April 20, 2009 - April 22, 2009
- Four stores provided ~40.25 hours of luminosity
- MI LCW tripped off
- Pbar controls crate power supply replaced
April 15, 2009 - April 17, 2009
- Four stores provided ~44.5 hours of luminosity
- Meson MTest experiment T971 begins taking beam
- Helium transfer line pressure drop stabilized
April 13, 2009 - April 15, 2009
- Three stores provided ~41.75 hours of luminosity
- LRF3 LCW leak fixed
- Accumulator bend bus power supply repaired
- Pbar Debuncher and Accumulator energy mismatch corrected
April 10, 2009 - April 13, 2009
The integrated luminosity from 4/6/09 to 4/13/09 was 27.08 inverse pico barns.
- Five stores provided ~ 48 hours of luminosity
- Accumulator bend bus power supply ground fault trips
- Store 6966 aborted
April 8, 2009 - April 10, 2009
- There were no stores due to a TeV cold box turbine failure
- Accelerators conducted maintenance
April 6, 2009 - April 8, 2009
- There were no stores due to a TeV cold box turbine failure
- Accelerators conducted maintenance
April 3, 2009 - April 6, 2009
The integrated luminosity for 3/30/09 to 4/6/09 was approximately 56.72 inverse pico barns
- Two stores provided ~30.25 hours of luminosity
- CHL cold box #2 turbine failed
- Pbar lithium lens failed
April 1, 2009 - April 3, 2009
- Four stores provided ~37.75 hours of luminosity
- CUB column #1 regenerated
- TeV horizontal collimation beam orbit changed
March 30, 2009 - April 1, 2009
- Four stores provided ~37.25 hours of luminosity
- No MI QF bus ground fault found
- Recycler set record stash size, 477.2E10
March 27, 2009 - March 30, 2009
- Four stores provided ~50 hours of luminosity
- Experts search for high field ground fault in MI
- TeV quench during shot setup
- TeV abort during shot setup
- Booster vacuum leak found and repaired
March 25, 2009 - March 27, 2009
- Four stores provided ~39 hours of luminosity
- FESS repairs Booster West chilled water system
March 23, 2009 - March 25, 2009
- Five stores provided ~29 hours of luminosity
- Booster West Anode Power Supply caused RF sparking
- Two TeV aborts; power supply fixed
- P1 transfer line vacuum cascade
March 20, 2009 - March 23, 2009
- Four stores provided ~46.5 hours of luminosity
- Booster ground fault fixed (BRF8)
- TeV ground fault fixed (D0Q2)
- TeV power supply repaired (QFA4)
- 400 MeV area tuned
The integrated luminosity for the period from 3/16/09 to 3/23/09 was 60.34 inverse pico barns.
March 18, 2009 - March 20, 2009
- Three stores provided ~37.25 hours of luminosity
- Vacuum experts access TeV
- Linac and Booster experts access and conduct maintenance
- FESS finds chilled water leak
- Booster off for MP03 repairs
March 16, 2009 - March 18, 2009
- Three stores provided ~43.25 hours of luminosity
- MTest experiment T988 ends and T971 begins
- NuMI condensation tank level fixed
- Recycler suffers from vacuum burst
March 13, 2009 - March 16, 2009
- Four stores provided ~39.75 hours of luminosity
- A D0 power glitch quenched the TeV; store 6891 was lost
- Pbar Lithium lens replaced
The integrated luminosity from 3/9/09 to 3/16/09 was 54.36 inverse picobarns.
March 11, 2009 - March 13, 2009
- Four stores provided ~41 hours of luminosity
- Pbar power supplies get repaired
- Linac quadrupole power supplies get repaired
- MTest T988 experiment takes beam
March 9, 2009 - March 11, 2009
- Three stores provided ~31 hours of luminosity
- Pbar power supply A:IB making lots of noise
- Problems with Linac quadrupole power supplies
- Cryo system experts busy with maintenance
March 6, 2009 - March 9, 2009
- Two stores provided ~33 hours of luminosity
- Accelerators recovered form Kautz Rd power glitch
- Linac resolves quadrupole power supply problems
- Linac switched to I- Source
- Lightning strike trips off equipment and loss of stash
- Main contactor for TeV power supply repaired
- Pbar fixes optical receiver at AP50
- TeV quench during shot setup
March 4, 2009 - March 6, 2009
- Two stores provided ~34.75 hours of luminosity
- TeV recovers from Tuesday night quench
- TeV sector A2 LCW leak repaired
- Linac quadrupole power supply problems
- Booster RF sparking problems resolved
- TeV quenches twice during Friday midnight shift
March 2, 2009 - March 4, 2009
- Three stores provided ~28 hours of luminosity
- Booster LCW pump at CUB trip
- NTF treatment resumed after power supply replaced
- TeV quench during shot setup
February 27, 2009 - March 2, 2009
- Three stores provided ~35 hours of luminosity
- Complex recovers from Kautz Rd power glitch
- Booster suffers from RF trips
February 25, 2009 - February 27, 2009
- Three stores provided ~31.75 hours of luminosity
- The Kautz Rd substation tripped off on a ComEd power glitch
- Store 6834 aborted and the stash was lost
- The TeV quenched
- Experts have been working since Thursday evening to bring the complex back up
February 23, 2009 - February 25, 2009
- Three stores provided ~26.5 hours of luminosity
- MI damper problem found and fixed
- H- source brought online
- TeV quench - store 6829 lost
February 20, 2009 - February 23, 2009
The integrated luminosity for 2/16/09 to 2/23/09 was 65.24 inverse pico barns.
- Four stores provided ~55 hours of luminosity
- Accumulator kicker and TWT problems fixed
- TeV sector A3 vacuum pump tripped off
February 18, 2009 - February 20, 2009
- Tev quench during shot setup
- Pbar access for target change
February 16, 2009 - February 18, 2009
- Three stores provided ~42.75 hours of luminosity
- MI suffered vacuum burst
- One transfer of antiprotons lost due to timing problem
- On Thursday Pbar will install new target
February 13, 2009 - February 16, 2009
- Two stores provided ~9 hours of luminosity
- New transformer connected
- More TeV dump switch damage discovered
- TeV quench
- MI vacuum burst
February 11, 2009 - February 13, 2009
- Cross Gallery transformer failure
- Loss of power caused loss of MCR controls
- TeV dump switches were damaged
- Pbar bendbus power supply cable suffered ground fault
- New transformer staged for connection
February 9, 2009 - February 11, 2009
- Three stores provided ~31.25 hours of luminosity
- Accumulator power supply LCW leak repaired
- Cross Gallery, MCR, Computer Room transformer failed
- Store 6792 and stash lost
- The TeV suffered a 6-house quench
- The complex is down until at least Thursday afternoon (2/12/09)
February 6, 2009 - February 9, 2009
- Four stores provided ~54.0 hours of luminosity
- Booster RF and Kicker problems resolved
- TeV sector F4 LCW pump trips - backup pump brought online
- Ice slows replacement of Booster beam detector
February 4, 2009 - February 6, 2009
- Three stores provided ~19 hours of luminosity.
- Two Tevatron quenches.
- Rf problems in Linac and Booster.
February 2, 2009 - February 4, 2009
- Three stores provided ~39.75 hours of luminosity
- Booster Chopper problems
January 30, 2009 - February 2, 2009
- Five stores provided ~65.75 hours of luminosity
- Booster Chopper problems
- Very good weekend for luminosity
January 28, 2009 - January 30, 2009
- Three stores provided ~35.25 hours of luminosity
- Main Injector kicker problems
- Linac RF station trip
January 26, 2009 - January 28, 2009
- Three stores provided ~38.25 hours of luminosity
- Tevatron Electron Lens #2 trips
- Two Recycler damper trips cause the loss of ~250E10 antiprotons
January 23, 2009 - January 26, 2009
- Four stores provided ~62.5 hours of luminosity
- MI kicker problems fixed
- Controls experts resolved MI TCLK problems
- MI LCW pump gasket fails
- Recycler stash lost when MI LCW tripped off
- Booster experts brought East and West Anode power supplies on after trips
January 21, 2009 - January 23, 2009
- Three stores provided ~50.75 hours of luminosity
- MI suffers from kicker problems
- Pelletron experts fix a software issue
January 19, 2009 - January 21, 2009
- Two stores provided ~22 hours of luminosity
- Tevatron Electron Lens controls problems cause TeV quenches
- MiniBooNE off due to sump pump failure
- Recycler has VSA problems
January 16, 2009 - January 19, 2009
- Five stores provided ~50.75 hours of luminosity
- Linac discovered cause of velocity meter problems
- MI suffers from kicker prefire faults
- TeV ground fault found
- Booster had RF problems
January 12, 2009 - January 14, 2009
- Two stores provided ~22.5 hours of luminosity
- TeV store 6718 lost to quench
- Diagnostics installed on KRF5
- Linac suffers from dump vacuum problems
January 9, 2009 - January 12, 2009
- Five stores provided ~62 hours of luminosity
- store 6715: second highest with an initial luminosity of 359.45E30
- Pbar fixes two transfer switches that were hindering stacking
- TeV conducts coupling study
- Pelletron VME node problems
January 7, 2009 - January 9, 2009
- Three stores provided 34.25 hours of luminosity
- Failed amplifier causes Booster RF sparking
- Cryo system experts conduct TeV wet engine maintenance
- Pbar stacking rate drops due to bad PLC
January 5, 2009 - January 7, 2009
- Four stores provided ~34.5 hours of luminosity
- Cryo experts tightened the A3 wet engine belts
- Store 6706: third highest with a luminosity of 352.15E30
December 29, 2008 - January 5, 2009
- Seven stores provided ~124.25 hours of luminosity
- A3 harmonic filter repaired
- Pelletron VME problems continue
- Recycler and MI have kicker problems
- Store 6698 aborted due to C0 shunt trip
- Pbar water-skid LCW leak fixed
- Stash lost due to beam valve failure
The Integrated Luminosity for 12/29/08 to 1/5/09 was 56.04 Pb-1.
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