Accelerator Update for April 27, 2009 - April 29, 2009
Monday April 27
The day shift began with Operations monitoring the Tevatron (TeV) store 7000 (115.62E30) and the Recycler stash (134.1E10), with the Antiproton Source stacking (9.1E10), with the Linac, Booster, and Main Injector (MI) operating normally, with the Meson MTest, MiniBooNE, and NuMI experiments taking beam, and with the Collider Detector at Fermilab (CDF) and D-Zero (D0) experiments using the colliding beams.
Operations put the TeV into a dry squeeze at the end of the day shift.
Operations established store 7004 at 7:20 PM with an initial luminosity of 301E30.
Pbar, NuMI, MiniBooNE, and MTest took beam when available. Pbar transfers to the Recycler were completed when appropriate.
Tuesday April 28
The midnight shift began with Operations monitoring store 7004 (150.4E30) and the stash (161.6E10), and with Pbar stacking (16.6E10).
Operations terminated store 7004 at 4 AM.
Operations established store 7005 at 5:45 AM with an initial luminosity of 258.0E30.
The NuMI beam line developed a target/ BPM problem during the HEP shot setup. Controls personnel were called in to investigate. Various BPM front ends and the autotune control software were reset and/or rebooted. The problem was resolved prior to shutting the beam off for the scheduled MI access.
Shutdown activities began at 7 AM with accesses to Linac, Booster, MI, MI-8, pre-vault, and the vault.
Operations established beam to Linac by early afternoon.
Pbar held on to a stack throughout the day shift.
The MI access finished up shortly after the evening shift began. Checkout was underway by 5:15 PM.
Operations established a low intensity beam to Pbar, NuMI, and MiniBooNE by 6:15 PM.
Beam was delivered to MTest from 6:40 - 10:40 PM.
Pbar transfers to the Recycler were completed when appropriate.
Wednesday April 29
The midnight shift began with TeV cooldown in progress, with Operations monitoring the stash, and with Pbar stacking.
Operations terminated store 7005 at 1:20 AM.
Operations put the TeV into HEP shot setup and established store 7006 at 3:15 AM with an initial luminosity of 197.19E30.
Pbar, NuMI, and MiniBooNE took beam when available. Pbar transfers to the Recycler were completed when appropriate.
The Plans for Wednesday
The plans for today are to stack, stash, and store.
Comments and Suggestions
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