Accelerator Update for May 22, 2006 - May 23, 2006
Monday May 22
Permission was given to run the Pelletron.
Permission was given to MiniBooNE to take beam.
MI was successfully ramping by 3 PM.
TeV separator conditioning continued.
Operators discovered that there was a soft ground fault in the TeV somewhere between sectors B2 and C2.
Tuesday May 23
The midnight shift began with MI/8 GeV studies and TeV separator conditioning.
The 8 GeV line studies finished.
A Recycler expert began setting up their machine.
Operations prepared the TeV for access at 7:25 AM.
The Plans for Today
The plans are to allow TeV accesses to complete work and to give priority to the MI high-field orbit measurements.
Techs repaired the coasting beam valve. Experts managed to get beam around MI on the first pulse, but beam fell out of the machine as they increased its energy. Experts think there might be a problem with MECAR. Experts made MI-8 lattice measurements. They found three bad MI BPMs and were having problems with a Multiwire. They want to conduct high-field measurements.
The AP1 line needs a vacuum leak check. The A30 bake was completed and the tank might be cool enough to power later this morning. The Debuncher is cold and experts will start extraction tests. The enclosures have been cleaned. CUB suffered a LCW pump failure – Pbar has no backup pump at this time. If there is beam available, they will be ready for it by Wednesday night.
All the separators are on and conditioning with very few sparks. There are some controls hardware problems with the separators. The Tevatron Electron Lens (TEL1) installation should be completed today.
Experts are conducting walkthroughs today. They are concerned about locating the P3 line ground fault quickly.
Experts want beam to their target today to test equipment.
Experts have started up equipment and will run for four days. They still need their enclosures cleaned. Electrician work continues. They will be ready for beam by Friday.
Collider Detector at Fermilab
Experts ran cosmic ray tests and found noise problems.
D-ZeroThey are working on their detector today and on making configuration changes tomorrow. They will have their detector closed up by Thursday.
|last modified 11/28/2007 email Fermilab|