Fermi National Laboratory


2005 Accelerator Update Archive

December 19, 2005-December 21, 2005
- During the 48 hour period operations established two store that along with a previous store provided the experiments with 38 hours and 30 minutes of luminosity.

December 16, 2005-December 19, 2005
- During the 72 hour period operations established three stores that provided the experiments with 56 hours and 30 minutes of luminosity.

December 14, 2005-December 16, 2005
- Separator spark causes TeV quench
- Pbar LCW leak found and fixed

December 12, 2005-December 14, 2005
- Two stores provided five hours and 14 minutes of luminosity
- TeV F0 ground fault found and corrected
- TeV suffers 3 quenches
- Booster LCW leak found and repaired
- TeV F17 collimator problem

December 9, 2005-December 12, 2005
- Tevatron separators conditioning
- NuMI off due to horn chiller problems
- Pbar began stacking
- Recycler began stashing
- TeV put in shot setup, but suffered quench

December 7, 2005-December 9, 2005
- TeV has VCB problem
- Pbar Debuncher has power supply problem
- Switchyard has power supply problem
- First store may go into the TeV late on Sunday

December 5, 2005-December 7, 2005
- NuMI hits integrated total of 1E20 protons on target
- CUB LCW leak
- TeV sector A4 cryo system helium leak repaired
- TeV sector B1 cryo system cold

December 2, 2005-December 5, 2005
- The TeV B1 mechanical and cryo system sign offs should occur by noon on Monday
- The TeV B1 cooldown will start shortly after the sign offs
- The TeV B1 separator bakeout should finish on Tuesday

November 30, 2005-December 2, 2005
- TeV B1 work continues
- TeV B11 separator bake out will extend TeV shutdown
- Pbar conducts reverse proton studies
- Recycler conducts Electron Cooling studies

November 28, 2005-November 30, 2005
- Tevatron sector B17 work continues
- MiniBooNE, NuMI, and the Meson experiments resume taking beam

November 23, 2005-November 28, 2005
- No stores established due to Tevatron B17 work
- Pbar's lithium lens fails
- Experts report that the B17 bypass is okay

November 21, 2005-November 23, 2005
- One store provided 8 hours and 6 minutes of luminosity
- Multi-house quench lost store 4515
- TeV sector B1 cryo system warming up

November 18, 2005-November 21, 2005
- Three stores provided 47 hours and 24 minutes of luminosity
- MiniBooNE has power supply problems
- P1 transfer line vacuum bursts
- Store 4515 quenched
- Pbar off due to LCW leak

November 16, 2005-November 18, 2005
- One store provided one hour and seven minutes of luminosity
- Accelerator safety system checks completed
- Linac RF stations repaired
- TeV vacuum and power supply problems
- Feeder 37 fault
- Store delayed due to Recycler RF structure problem

November 14, 2005-November 16, 2005
- Two stores provided 41 hours and 15 minutes of luminosity
- Safety system testing
- Ground water in MI-40
- Stack dumped to fix AP2 vacuum

November 11, 2005-November 14, 2005
- Three stores provided 62 hours and 23 minutes of luminosity
- Linac off for five hours due to tripped Klystron
- Recycler loses CE504 but holds on to stash
- MiniBooNE off due to H866

November 9, 2005-November 11, 2005
- Two stores provided 41 hours and 11 minutes of luminosity
- NuMI problems
- Electron Cooling back in action
- Store 4495 sets New Luminosity Record: 166.8E30

November 7, 2005-November 9, 2005
- Two stores provided 37 hours of luminosity to the experiments
- TeV RF spark caused quench
- Pelletron down for work
- Multiple problems troubles NuMI

November 4, 2005-November 7, 2005
- 4 stores provide 53 hours and 39 minutes of luminosity
- P1 suffers from vacuum bursts
- Recycler stash aborted

November 2, 2005-November 4, 2005
- Two stores provided 27 hours and 48 minutes of luminosity
- Store 4481 aborted due to RF trip

October 31, 2005-November 2, 2005
- Two stores provided 34 hours and 38 minutes of luminosity
- Store 4477 set a Record Luminosity of 164.17E30
- ICW leak at CDF
- Store 4477 quenched on termination

October 28, 2005-October 31, 2005
- During this 72 hour period: three stores provided 60 hours and 25 minutes of luminosity
- TeV quench, but with no store

October 26, 2005-October 28, 2005
- During this 48 hour period: One store provided 29 hours and 8 minutes of luminosity
- Store 4473 set a New Luminosity Record with a luminosity of 158.223E30

October 24, 2005-October 26, 2005
- During this 48 hour period: two stores provided 27 hours and 19 minutes of luminosity
- P1 vacuum bursts continue
- Store 4468 sets New Luminosity Record with an initial luminosity of 144.906E30
- TeV B2 VCB opened and caused store 4468 to abort
- D0 must open its detector for power supply work

October 21, 2005-October 24, 2005
- During this 72 hour period: Three stores provided 62 hours and 18 minutes of luminosity
- P1 vacuum cascades controlled
- Store 4465 sets Record Luminosity with an initial luminosity of 144.512E30

October 19, 2005-October 21, 2005
- During this 48 hour period: One store provided 34 hours and 38 minutes of luminosity
- P150 Vacuum Bursts
- TEL required timing adjustment
- D:IB trouble
- TeV crate and sequencer trouble

October 17, 2005-October 19, 2005
- During the 48 hour period: Two stores provided 20 hours and 22 minutes of luminosity
- Vacuum bursts plague TeV, Recycler, and MI
- Pbar pulse magnet ground faulted
- ComEd power glitch aborts store and stash
- TeV vacuum leak hunted

October 14, 2005-October 17, 2005
- During this 72 hour period: 4 stores provided 57 hours and 19 minutes of luminosity
- Meson LCW Leak
- TeV C1 Pump Fails
- Vacuum Failure Aborts Store
- Pelletron Off
- NuMI has Bad Chiller Compressor

October 12, 2005-October 14, 2005
- During this 48 hour period: Two stores provided 38 hours and 9 minutes of luminosity
- NuMI resumes taking beam
- Pelletron repaired
- Store 4445 sets Record Luminosity: 142.51E30

October 10, 2005-October 12, 2005
- During this 48 hour period: Two stores provided 15 hours and 40 minutes of luminosity
- CDF solenoid dumped helium
- Pelletron down
- Booster LCW repaired, then had ORBMP vacuum problem

October 7, 2005-October 10, 2005
- During this 72 hour period: one store provided 29 hours and 38 minutes of luminosity
- Booster LCW leak

October 5, 2005-October 7, 2005
- NuMI horn groundfault cleared
- Close call for Tevatron Vacuum

October 3, 2005-October 5, 2005
- During this 48 hour period: two stores provided 37 hours and 52 minutes of luminosity
- Store 4431 sets New World Hadron Luminosity Record: 141.28E30

September 30, 2005-October 3, 2005
- During this 72 hour period: two stores provided 30 hours and 29 minutes of luminsoity
- NuMI Horn ground faulted
- Two TeV quenches during shot setup
- Recycler stash lost
- TeV separator problems

September 28, 2005-September 30, 2005
- During this 48 hour period: 1 store provided 33 hours and 45 minutes of luminosity
- TeV helium leak
- Pbar AP1 vacuum leak
- NuMI Horn problems

September 26, 2005-September 28, 2005
- During this 48 hour period: 1 store plus existing store provided 33 hours and 45 minutes of luminosity
- Recycler only store 4402: 119E30
- Pbar stack lost
- Two TeV quenches
- Recycler record for store antiprotons: 247E10

September 23, 2005-September 26, 2005
- During this 72 hour period Operations established two stores that combined with an existing store provided the experiments with approximately 65 hours and 56 minutes of luminosity
- Pbar stacking problems
- Store 4401 sets New Luminosity Record - 131.02E30

September 21, 2005-September 23, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided the experiments with approximately 44 hours and 34 minutes of luminosity
- NuMI kicker problems
- Stacking suffers from DRF1 troubles

September 19, 2005-September 21, 2005
- During this forty-eight hour period operations established one store that combined with an existing store provided the experiments with approximately 32 hours and 36 minutes of luminosity
- NuMI off due to dripping water
- Preaccelerator switched to the I- Source
- TeV quench

September 16, 2005-September 19, 2005
- During this 72 hour period operations established two stores that combined with an existing store provided approximately 58 hours and 39 minutes of luminosity to the experiments
- H- Source and 750 KeV line problems
- MI and Recycler RF trip due to LCW pump
- Pbar loses small stack

September 14, 2005-September 16, 2005
- During this 48 hour period Operations established two stores that combined with an existing store provided the experiments with approximately 41 hours and 39 minutes of luminosity
- Pbar losses on Recycler stash
- H- Source problems

September 12, 2005-September 14, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided the experiments with approximately 45 hours and 22 minutes of luminosity
- ComEd glitch causes loss of stash

September 9, 2005-September 12, 2005
- During this 72 hour period Operations established two stores that provided the experiments with approximately 51 hours and 27 minutes of luminosity
- Power glitch quenches store, and dumps stack and stash
- Pbar off due to D:QF failure

September 7, 2005-September 9, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided the experiments with approximately 14 hours and 54 minutes of luminosity
- Meson suffers from LCW trouble
- Store luminosity ruined by separator spark
- Recycler loses antiprotons

September 5, 2005-September 7, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided the experiments with approximately 40 hours of luminosity
- Booster EAPS problems
- M05 LCW leak

September 2, 2005-September 5, 2005
- During the 72 hour period operations established three stores that combined with an existing store provided the experiments with 41 hours of luminosity
- A bad vacuum card causes the loss of a Tevatron store

August 31, 2005-September 2, 2005
- Maintenance work was done on a number of machines
- PBar had some magnets moved as part of the maintenance period. This caused problems for stacking when PBar started back up
- After studies, tuning, and accesses, stacking returned to an acceptable level
- The machines were glitched and a store lost when Feeder 47 faulted again. Store 4363 was put in the Tevatron and was colliding this morning
- The experiments ran when beam was available

August 29, 2005-August 31, 2005
- During this forty eight hour period Operations established one store that combined with an existing store provided the experiments with approximately 44 hours and 15 minutes of luminosity
- New Pbar stach record for the Recycler Ring is 191.0 E10

August 26, 2005-August 29, 2005
- During the 72 hour period operations established three stores that combined with an existing store provided the experiments with 33 hours and 30 minutes of luminosity
- Two feeder trips and associated glitches make for a problematic weekend

August 24, 2005-August 26, 2005
- During the 48 hour period operations established one store that combined with an existing store provided the experiments with 42 hours and 22 minutes of luminosity
- Electron cooling down for Pelletron repairs
- NuMI HV101 troubles due to LCW leak

August 22, 2005-August 24, 2005
- During this forty eight hour period Operations established one store that combined with an existing store provided the experiments with approximately 44 hours and 58 minutes of luminosity
- MCenter held off due to LCW trouble

August 19, 2005-August 22, 2005
- During this 72 hour period Operations established three stores that combined with an existing store provided the experiments with approximately 39 hours of luminosity
- Pbar emittance problems
- Thunderstorm aborts store and quenches TeV
- Recycler stash lost

August 17, 2005-August 19, 2005
- During this 48 hour period Operations established two stores that combined with an existing store provided the experiments with 35 hours and 7 minutes of luminosity
- Lost shots to Recycler investigated
- Lightning strike aborts store 4337

August 15, 2005-August 17, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided the experiments with 22 hours and 40 minutes of luminosity
- Lithium lens repaired
- TeV quench
- F sector vacuum problems

August 12, 2005-August 15, 2005
- During this 72 hour period Operations established two stores that combined with an existing store provided approximately 69 hours and 6 minutes of luminosity to the experiments
- Pbar's lithium lens tripped off

August 10, 2005-August 12, 2005
- During this 48 hour period Operations established two stores that combined with an existing store provided the experiments with approximately 27 hours and 35 minutes of luminosity
- MI RF causes NuMI troubles
- TeV antiproton kicker fails
- Recycler looses RF structure

August 8, 2005-August 10, 2005
- During this 48 hour period Operations established one store that when combined with an existing store provided the experiments with approximately 38 hours and 18 minutes of luminosity
- Booster RF limps through to Tuesday maintenance

August 5, 2005-August 8, 2005
- During this 72 hour period operations established two stores that combined with an existing store provided approximately 66 hours and 46 minutes of luminosity to the experiments
- Massive Booster RF problems

August 3, 2005-August 5, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided the experiments with approximately 35 hours and 49 minutes of luminosity
- Store 4318 sets Luminosity Record with 129.8E30

August 1, 2005-August 3, 2005
- During this 48 hour period Operations established two stores that combined with an existing store provided the experiments with approximately 41 hours and 26 minutes of luminosity
- Pelletron network problems

July 29, 2005-August 1, 2005
- During this 48 hour period operations established two stores that combined with an existing store that provided approximately 58 hours and 20 minutes of luminosity to the experiments
- Booster kicker keeps beam off
- TeV quench

July 27, 2005-July 29, 2005
- During this 48 hour period operation established two store that combined with an existing store provided the experiments with approximately 26 hours and 27 minutes of luminosity
- Stores lost due to quench and an inadvertent abort

July 25, 2005-July 27, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided the experiments with approximately 28 hours and 10 minutes of luminosity
- MI & Booster repair RF systems
- TeV quench

July 22, 2005-July 25, 2005
- During the 72 hour period Operations established three store that provided the experiments with approximately 52 hours and 58 minutes of luminosity
- Feeder 47 trips off
- MI and Booster suffer from RF problems
- Antiproton Target stops rotating

July 20, 2005-July 22, 2005
- During this 48 hour period Operations established two stores that combined with an existing store provided the experiments with approximately 25 hours and 19 minutes of luminosity
- MiniBooNE has DAQ trouble
- Feeder 47 tripped off
- TeV aborts store 4287
- TeV quench due to power supply trip

July 18, 2005-July 20, 2005
- During this 48 hour period Operations established two stores that combined with an existing store provided the experiments with approximately 27 hours and 46 minutes of luminosity
- MI suffers from RF and damper problems
- RF trip causes TeV store abort

July 15, 2005-July 18, 2005
- During this 72 hour period Operations established two store that provided the experiments with approximately 64 hours and 45 minutes of luminosity

July 13, 2005-July 15, 2005
- During this 48 hour period Operations established two stores that combined with an existing store provided the experiments with approximately 11 hours and 48 minutes of luminosity
- TeV experts conduct studies
- TeV quench looses store

July 11, 2005-July 13, 2005
- During this 48 hour period Operations established one store that provided the experiments with approximately 18 hours and 15 minutes of luminosity
- LRF4 conditioning slow
- Pbar troubles continue
- TeV lonitudinal damper problem

July 8, 2005-July 11, 2005
- During this 72 hour period Operations established one store that combined with an existing store provided the experiments with approximately 50 hours and 7 minutes of luminosity
- LRF4 conditioning slow
- Pbar troubled with many problems, ending with a ground fault
- TeV quench during shot setup
- Recycler showed first proof of electron cooling

July 6, 2005-July 8, 2005
- During this 48 hour period Operations established two store that combined with an existing store provided the experiments with 32 hours and 30 minutes of luminosity
- MI damper, beam loading, and feed forward problems
- New LRF4 PA has trouble conditioning

July 4, 2005-July 6, 2005
- During this 48 hour period Operations established one store that provided the experiments with approximately 25 hours and 51 minutes of luminosity
- NuMI off due to power supply
- MI transformer replaced Monday evening
- Store established Tuesday morning

July 1, 2005-July 4, 2005
- During this 72 hour period operations established one store that provide the experiments with approximately 29 hours and 46 minutes of luminosity
- Linac switched to I- Source
- KRF7 tripped off
- MI transformer ground fault

June 29, 2005-July 1, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided approximately 38 hours and 15 minutes of luminosity to the experiments

June 27, 2005-June 29, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided the experiments with approximately 27 hours and 3 minutes of luminosity
- Heat trips off MiniBooNE beam
- TeV quench

June 24, 2005-June 27, 2005
- During this 72 hour period operations established three stores that provided the experiments with approximately 61 hours and 2 minutes of luminosity
- Booster RF sparking
- Low Beta Magnet movement lowers luminosity

June 22, 2005-June 24, 2005
- During this 48 hour period operations established one store that combined with an existing store provided the experiments with approximately 11 hours and 36 minutes of luminosity
- TeV suffers two quenches
- I- Source problems
- Accumulator ground fault
- TeV suffers abort - store lost
- Feeder fault
- 400 MeV chopper trip

June 20, 2005-June 22, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided approx. 40 hours and 13 minutes of luminosity to the experiments
- CUB LCW pump failed
- Mysterious "glitch" trips off TEL

June 17, 2005-June 20, 2005
- During this 72 hour period Operations established four stores that provided 46 hour and 6 minutes of luminosity to the experiments
- TeV quench due to wet engine-store lost
- B0 device causes store abort
- Recycler stash lost

June 15, 2005-June 17, 2005
- Operations established no stores during this 48 hour period
- Problems slowed shot setup
- Tev quenches due to separator spark

June 13, 2005-June 15, 2005
- During this 48 hour period Operations established no stores
- No NuMI magnet ground fault
- Pbar stack lost
- Feeder 38 and 47 reenergized
- Pbar Debuncher Cryo system ready

June 10, 2005-June 13, 2005
- During the past 72 hours Operations established 2 stores that provided approximately 46 hours and 27 minutes of luminosity to the experiments
- Booster chopper trips off
- I- Source voltage troubles
- CHL losses power; store terminated
- Possible bad NuMI magnet required MI access; stash terminated
- TeV beam not expected before evening shift June 15

June 8, 2005-June 10, 2005
- During this 48 hour period Operations established one store that provided the experiments with approximately 28 hours and 44 minutes of luminosity
- Booster and NuMI suffer from kicker problems
- Pbar stacking halted due to A:IB contactor
- TeV quench during shot setup

June 6, 2005-June 8, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided the experiments with approximately 44 hours and 32 minutes of luminosity
- NuMI off four hours
- Booster off due to GMPS failure

June 3, 2005-June 6, 2005
- During the past 72 hour period Operations established two stores that provided the experiments with approximately 36 hours and 7 minutes of luminosity
- Store delayed by kicker problem and quench
- Pbar accesses to look for leak
- MCenter shutdown for five days of work

June 1, 2005-June 3, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided the experiments with approximately 41 hours and 48 minutes of luminosity
- Booster chopper and notcher problems
- Power supply holds off NuMI

May 27, 2005-June 1, 2005
- During this 144 hour period Operations established 4 stores that combined with an existing store provide the experiments with approximately 101 hours and 41 minutes of luminosity
- Booster off for LCW leak and kicker spark
- Store aborted due to controller problem
- Debuncher Pulse Magnet replaced

May 25, 2005-May 27, 2005
- During this 48 hour period Operations established two stores that provided approximately 43 hours and 45 minutes of luminosity
- Many necessary repairs were done during this 48 hour period.

May 23, 2005-May 25, 2005
- During this 48 hour period Operations established two stores that provided the experiments with approximately 29 hours and 45 minutes of luminosity
- Problems with RF and Timing, along with a bad Wet engine flywheel make for long shot setups.

May 20, 2005-May 23, 2005
- During this 72 hour period Operations established two stores that provided the experiments with approximately 38 hours of luminosity
- TeV problems throughout the weekend

May 18, 2005-May 20, 2005
- During this 48 hour period Operations established three stores that provided approximately 8 hours and 3 minutes of luminosity
- TeV looses three stores due to three quenches

May 16, 2005-May 18, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided the experiments with approximately 30 hours and 27 minutes of luminosity
- Booster suffered from RF, EAPS, and Chopper problems
- NuMI sent beam during Recycler shot setup
- TeV quenched after store 4148 terminated

May 13, 2005-May 16, 2005
- During this 72 hour period Operations established two stores that provided the experiments with approximately 52 hours and 1 minute of luminosity
- TeV quenches three times - one store lost
- I- Source problems
- The Booster Chopper trips

May 11, 2005-May 13, 2005
- During this 48 hour period operations established one store that combined with an existing store provided approximately 28 hours and 39 minutes of luminosity
- Store 4138 sets New Luminosity Record: 126.97E30
- Lightening causes loss of store, stack, and trips many systems
- MiniBooNE horn suffers cooling problem

May 9, 2005-May 11, 2005
- During this 48 hour period Operations established two stores that combined with an existing store provided the experiments with approximately 42 hours and 9 minutes of luminosity
- Booster trips due to EAPS
- Pbar and NuMI suffer trips

May 6, 2005-May 9, 2005
- During this 72 hour period Operations established three stores that provided the experiments with approximately 62 hours and 27 minutes of luminosity
- Booster has chopper, RF, and power supply trouble
- Most of one recycler stash attempt lost in transfers
- NuMI target leak returns

May 4, 2005-May 6, 2005
- During this forty-eight hour period Operations established one store that provided the experiments with approximately 21 hours and 12 minutes of luminosity
- Safety system testing continues
- NuMI target problems return
- BRF4 removed for repairs

May 2, 2005-May 4, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided approximately 32 hours and 32 minutes of luminosity
- TeV quench loses store
- NuMI loses power

May 2, 2005-May 4, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided approximately 32 hours and 32 minutes of luminosity
- TeV quench loses store
- NuMI loses power

April 29, 2005-May 2, 2005
- During this 72 hour period Operation established three stores that provided the experiments with approximately 57 hours and 32 minutes of luminosity
- The TeV set a NEW RECORD Luminosity: 122.65E30
- TeV power supply, HP3US, springs LCW leak
- Pbar suffers from emittance problems
- Accumulator Water Skip fails
- NuMI has helium leak
- Two stores established with luminosities of 122E30

April 27, 2005-April 29, 2005
- During the 48 hour period Operations established one store that provided the experiments approximately 32 hours and 13 Minutes of luminosity
- Store 4116 set New Record with a luminosity of 119.03E30
- TeV suffers from C4 QPM and power supply problems

April 25, 2005-April 27, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided the experiments with approximately 42 hours and 40 minutes of luminosity
- MiniBooNE resumes taking beam

April 22, 2005-April 25, 2005
- During this 72 hour period Operations established two stores that combined with an existing store provided the experiments with approximately 62 hours and 35 minutes of luminosity
- C2 wet engine failure, store saved by quick action
- Booster kicker gets replaced
- Accumulator power supply trip looses stack

April 20, 2005-April 22, 2005
- During this 48 hour period operations established two stores that provided the experiments with approximately 31 hours and 43 minutes of luminosity
- Pbar septa interrupts stacking
- NuMI conducts target scan

April 18, 2005-April 20, 2005
- During this 48 hour period operations established one store that combined with an existing store provided the experiments with approximately 37 hours and 47 minutes of luminosity
- Main Injector suffers from RF cavity phase error
- Accumulator power supply (A:LQ) causes problems
- Accumulator Septa power supply causes problems

April 15, 2005-April 18, 2005
- During this 72 hour period operations established one store that provided approximately 25 hours and 41 minutes of luminosity to the the experiments
- A shorted P2 transfer line quadrupole halts stacking
- Magnet replacement completed Sunday morning

April 13, 2005-April 15, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided the experiments with approximately 43 hours and 53 minutes of luminosity
- Stacking halted due to P1/P2 transfer line problem

April 11, 2005-April 13, 2005
- During the 48 hour period operations established two stores that combined with an existing store provided the experiments with approximately 27 hours and 58 minutes of luminosity
- TeV suffered two quenches
- Debuncher kicker fails

April 8, 2005-April 11, 2005
- During this 72 hour period Operations established two stores that provided the experiments with approximately 42 hours and 22 minutes of luminosity
- A Recycler only store quenched before it was established
- Booster had East Anode power supply problems

April 6, 2005-April 8, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided the experiments approximately 40 hours and 34 minutes of luminosity for the experiments
- Store 4078 quenched due to separator spark
- Recycler supplied antiprotons for store 4081
- Booster tunnel LCW leak

April 4, 2005-April 6, 2005
- During this 48 hour period Operations established two stores that provided the experiments with approximately 33 hours and 2 minutes of luminosity
- LRF5 PA tube replaced
- Booster chopper "on" tube replaced
- TeV quench during antiproton transfer

April 1, 2005-April 4, 2005
- During this 72 hour period Operations established two stores that combined with an existing store provided the experiments with approximately 63 hours and 42 minutes of luminosity
- MiniBooNE magnet repaired
- Pbar and Recycler suffer from emittance problems
- TeV RF station trips off causing luminosity loss
- NuMI scans target

March 30, 2005-April 1, 2005
- During the last 48 hours Operations established two stores that combined with an existing store provided the experiments with approximately 12 hours and 17 minutes
- Off site power glitch causes store abort
- MiniBooNE magnet overheats

March 28, 2005-March 30, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided the experiments with approximately 45 hours and 36 minutes of luminosity
- Booster suffers from RF problems
- Tevatron motion detectors record Sumatra earthquake
- Linac experts discover and repair RF station hose leaks
- I- Source motor generator failed
- Booster vacuum valves close
- Antiproton Source emittances affects stacking

March 25, 2005-March 28, 2005
- During this 72 hour period Operations established 3 stores that combined with an existing store provided approximately 62 hours and 20 minutes of luminosity to the experiments
- BRF16 proved troublesome all weekend
- KRF6 LCW leak caused minor problem

March 23, 2005-March 25, 2005
- During this 48 hour period Operations established two stores that, combined with an existing store, provided the experiments with approximately 41 hours and 52 minutes of luminosity
- Meson target train cooling trips off
- Pbar set new stacking record: 16.2mA per hour

March 21, 2005-March 23, 2005
- During this 48 hour period Operations established two stores that provided the experiments with approximately 38 hours and 15 minutes of luminosity
- Store 4053 set record luminosity: 117.32E30
- Store 4053 lost due to separator spark
- Booster has RF problems

March 18, 2005-March 21, 2005
- During this 72 hour period operations established two store that combined with an existing store provided the experiments with approximately 32 hours and 6 minutes of luminosity
- Store 4088 set record luminosity - 113.143E30
- Store 4088 quenched due to kicker prefire
- Kicker work and condition delays store
- B4 wet engine work delays study
- TeV suffers quench during study

March 16, 2005-March 18, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided the experiments with approximately 30 hours and 36 minutes of luminosity
- D0 tested new luminosity counter
- NuMI intensity increasing

March 14, 2005-March 16, 2005
- During this 48 hour period operations established two stores that provided the experiments with approximately 41 hours and 33 minutes of luminosity
- Linac suffers RF and Buncher trips

March 11, 2005-March 14, 2005
- During this 72 hour period operations established two stores that provided the experiments with approximately 54 hours and 5 minutes of luminosity
- QPM system repaired
- NuMI losses beam due to LCW problem
- Operators save store 4041
- Antiproton Source has kicker problem
- Cryo technicians save store 4042

March 9, 2005-March 11, 2005
- During this 48 hour period Operations established one store that provided the experiments with approximately 2 hours and 37 minutes of luminosity
- Tevatron plagued with quenches and aborts

March 7, 2005-March 9, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided the experiments with approximately 27 hours and 13 minutes of luminosity
- Pbar and NuMI commission new stacking TLG module
- KRF6 problems held off beam
- Booster Watchdog power supply held off beam
- H- Source suffers from intensity drop
- Store 4027 quenched
- Debuncher Kicker problem halted stacking
- TeV trim magnet fails

March 4, 2005-March 7, 2005
- During this 72 hour period, Operations established 3 stores that, combined with an existing store, provided the experiments with approximately 57 hours and 25 minutes of luminosity
- One TeV store lost due to quench
- NuMI experiment commissioned
- D-Zero solenoid quenches

March 2, 2005-March 4, 2005
- During this 48 hour period operations established one store, which provided the experiments with approximately 13 hours and 11 minutes of luminosity.
- Vacuum leak repaired in TeV
- TeV suffered quench in shot setup

February 28, 2005-March 2, 2005
- During the 48 hour period Operations established one store that provided approximately 29 hours and 15 minutes of luminosity for the experiments
- NuMI and Pbar take beam
- Booster has RF problems
- TeV quench losses store before it's established
- H- Source suffers arc current problem

February 25, 2005-February 28, 2005
- During this 72 hour period Operations established two stores that combined with an existing store provided the experiments with approximately 52 hours and 39 minutes of luminosity.
- Booster has RF problems
- NuMI conducting studies
- Store 4007 quenched

February 23, 2005-February 25, 2005
- During this 48 hour period Operations established two stores that combined with an existing store provided the experiments with approximately 40 hours and 8 minutes of luminosity
- Store 4002 sets NEW LUMINOSITY RECORD with a luminosity of 107.43E30
- MECAR problems hit the Main Injector
- MiniBooNE losses beam due to bad power supply

February 21, 2005-February 23, 2005
- During this 48 hour period, Operations established one store that combined with an existing store provided the experiments with approximately 37 hours and 35 minutes of luminosity
- Linac has quad power supply problems
- Main Injector has MECAR problems
- Recycler stashed antiprotons

February 18, 2005-February 21, 2005
- During this 72 hour period Operations established three stores that combined with an existing store provided approximately 29 hours and 23 minutes of luminosity to the experiments.
- Tevatron suffers three quenches
- Recycler losses stash
- NuMI begins taking beam

February 16, 2005-February 18, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided the experiments with approximately 44 hours and 5 minutes of luminosity
- Recycler stashed antiprotons
- Booster has MP01 problem
- NuMI decay tunnel readied for beam

February 14, 2005-February 16, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided the experiments with approximately 30 hours and 19 minutes of luminosity.
- Vacuum problems halt Pbar's ability to stack
- Booster suffers from RF problems
- Recycler losses stash
- Main Injector has vacuum problems

February 11, 2005-February 14, 2005
- During this 72 hour period, Operations established two stores that provided approximately 18 hours and 34 minutes of luminosity to the experiments
- Operations received permission to power the Main Injector and to run beam in all machines
- TeV separator and MI Septa problems delayed shots

February 9, 2005-February 11, 2005
- During this 48 hour period, Operations provided approximately 21 hours and 30 minutes of luminosity to the experiments.
- Main Injector work continues

February 7, 2005-February 9, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided the experiments with approximately 26 hours and 19 minutes of luminosity.
- A quench ended store 3969
- The Main Injector held off due to ground fault indication
- MI-50 suffered a switch gear failure

February 4, 2005-February 7, 2005
- During this 72 hour period Operations established two stores that combined with an existing store delivered approximately 57 hours and 2 minutes of luminosity to the experiments
- A Tevatron quench lost store 3962
- Coyote helps troubleshoot MI Kicker problem
- A separator spark reduces store 3968's luminosity
- A Recycler sequencer problem limited store 3969 to Pbar antiprotons

February 2, 2005-February 4, 2005
- During this 48 hour period, operations established one store that, combined with an existing store, provided the experiments with approximately 25 hours and 30 minutes of luminosity.
- I:Q703 power supply replaced.

January 31, 2005-February 2, 2005
- During this 48 hour period Operations established two stores that provided approximately 32 hours and 49 minutes of luminosity to the experiments.
- A ComEd power glitch tripped off the TEL and ARF1, but store and stack survived.

January 28, 2005-January 31, 2005
- During the last 72 hours Operations established two stores that provided approximately 62 hours and 20 minutes of luminosity for the experiments.
- The Tevatron set a New Luminosity Record of 105.17E30 on Saturday evening.
- A Booster 4000 MeV chopper problem held off beam for a while.
- The motor generator for the I- Source had a brush problem.
- A problem with the G2 vacuum system brought down the Switchyard enclosure C system, which shut off beam to the Meson experiment.

January 26, 2005-January 28, 2005
- During this 48 hour period Operations established one store that combined with an existing store provided the experiments with 34 hours and 56 minutes of luminosity.
- MI-60 cubical removal completed on Wednesday morning.

January 24, 2005-January 26, 2005
- During this 48 hour period operations established one store that provided approximately 26 hours and 31 minutes of luminosity to the experiments.
- Booster experts have been working on the machine's tune
- The Antiproton Source has trouble with ARF1

January 21, 2005-January 24, 2005
- During this 72 hour period operations established one store that provided the experiments with approximately 4 hours and 36 minutes of luminosity
- Quenches, leaks, and wet engine problems plagued the Tevatron all weekend
- NuMI reported seeing their first neutrinos at the MINOS near detector on Friday

January 19, 2005-January 21, 2005
- During the last 48 hours operations established one store that, combined with an existing store, provided the experiments with approximately 19 hours and 25 minutes of luminosity
- The I- Source operations were troubled by a dirty water-resistor
- The TeV lost two stores due to aborts
- NTF treated its first patient on Thursday
- NuMI received permission to operate on Thursday. It will take its first beam on Friday

January 17, 2005-January 19, 2005
- During this 48 hour period, Operations established two stores that provided approximately 40 hours and 40 minutes of luminosity to the experiments.
- On Monday, the TeV set a New Luminosity Record of 104.96E30. Unfortunately, the next store was only 104.25E30.
- On Monday, the Antiproton Source set a New Stacking Record with a rate of 14.94 mA per hour.
- NTF has a problem with the power supply and magnet cabling for its 32-degree bend magnet.

January 14, 2005-January 17, 2005
- During this 72 hour period operations established 2 stores that, combined with an existing store, provided approximately 63 hours and 1 minute of luminosity to the experiments.
- A broken BPM has stopped the use of the Linac's 400 MeV steering program.
- Recycler stashed antiprotons and then used them for two stores
- A Tevatron separator trip caused a loss of luminosity

January 12, 2005-January 14, 2005
- During this 48 hour period, Operations established one store that, combined with an existing store, supplied the experiments with approximately 41 hours and 21 minutes of luminosity.
- A TeV BLM software problem held up shot setup
- A beam problem caused some CDF SVX crates to trip off
- A Booster kicker problem held off stacking
- A MI-60 VCB flash-over shutdown MI at 10 PM on Thursday night

January 10, 2005-January 12, 2005
- During this 48 hour period, Operations established one store that combined with an existing store provided approximately 44 hours and 41 minutes of luminosity to the experiments.
- The Recycler is regularly stashing antiprotons
- The Main Injector has a RF frequency problem
- The Antiproton Source achieves new stacking record

January 7, 2005-January 10, 2005
- During the last 72 hours, Operations established three stores that supplied the experiments with approximately 34 hours and 20 minutes of luminosity
- One store was lost due to an abort
- The Tevatron suffered two quenches that delayed shot setup
- Whenever possible, all stores will be made from Pbar and Recycler antiprotons

January 5, 2005-January 7, 2005
- Operations established one store during this 48 hour period. It provided approximately 26 hours and 39 minutes of luminosity to the experiments.
- LAM42 caused problems
- MBEX was also a source of problems

January 3, 2005-January 5, 2005
- Operations and the accelerator complex continued to recover from the ComEd power outage
- Tevatron used this down time to adjust the CDF low beta quad magnets
- Pbar resumed stacking on Tuesday afternoon, but then lost its stack that evening due to a breaker trip
- The TeV cryo system was ready by midnight on Tuesday

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More Information
For Tevatron luminosity charts and the current status of Fermilab's accelerators and detectors (live!), please go to Fermilab Now

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last modified 12/21/2005   email Fermilab

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