RHIC Startup: By tune shifting the Blue by 0.005, the Blue lifetime was greatly improved. Yellow lifetime might be somewhat degraded. ZDC rates in PH?ENIX are near 100kHz at beginning of store.
STAR will begin the day with a two hour 6 bunch store.
After the 6 bunch store, PHENIX wants to do a vernier scan with Angelika.
The stochastic cooling is causing the central bucket to diffuse into the two neighboring buckets. On the first production store Mike Blaskiewitz will look into tuning up the SC.
We are currently at 87 bunches. Per bunch intensity is at 1.1E9 for Au, and we know we can grow to 1.2 or even 1.4. The deuteron intensity is close to 1E11 and also has room to grow. The easiest way to grow is probably to add bunches. The limiting issue is likely to be the growth in background rates. The residual gas pressure is up, and the background rates scale linearly with pressure. Will try 1.2E9 in Au today.
| Scheduling Physicist: Mike Sivertz | Last updated: |
| Email: sivertz@bnl.gov | |
| Office Phone: 631-344-6102 | |
| Digital Pager: 7528 or 4300 | |
| Home Phone: 631-878-9020 |