Difference between revisions of "Run Planning Meeting Notes, December 16 - December 22, 2021"
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#Last 24h: | #Last 24h: | ||
#* Smooth production on LD<sub>2</sub> at 140 nA, 0/90 para and perp. Interrupted only by search for better spot on diamond (~1h see below) and ~1h of RF-related down time. | #* Smooth production on LD<sub>2</sub> at 140 nA, 0/90 para and perp. Interrupted only by search for better spot on diamond (~1h see below) and ~1h of RF-related down time. | ||
+ | #* [https://logbooks.jlab.org/entry/3964150 Spectra from A. Somov.] | ||
#Issues | #Issues | ||
#* JD70-105 degradation: [https://logbooks.jlab.org/entry/3963658 Hovanes tried to find a new location that improved the 0/90 para and 45/135 para/perp coherent peaks, but to no avail.] | #* JD70-105 degradation: [https://logbooks.jlab.org/entry/3963658 Hovanes tried to find a new location that improved the 0/90 para and 45/135 para/perp coherent peaks, but to no avail.] |
Revision as of 09:40, 16 December 2021
Thursday December 16
- Last 24h:
- Smooth production on LD2 at 140 nA, 0/90 para and perp. Interrupted only by search for better spot on diamond (~1h see below) and ~1h of RF-related down time.
- Spectra from A. Somov.
- Issues
- JD70-105 degradation: Hovanes tried to find a new location that improved the 0/90 para and 45/135 para/perp coherent peaks, but to no avail.
- Target lost control Labview) twice last night (2:20am and 5:50am). Chris Carlin came the first time and fixed it. He has not responded yet to the second call but we fixed it following his instruction and it worked.
- Rates are ~10% lower compared to previous LD2 data taking period, see here. Part of it is lower transmission but even accounting for this, normalized rates remains 6% lower (see trigger/PS, black disk symbols, here).
- Plans
- Continue running on LD2 at 140 nA, 0/90 para and perp.
- Discussion on possible target change to L4He.
- Status of possible CPP test.