Difference between revisions of "Run Planning Meeting Notes, Jan 25-Jan 31, 2018"

Revision as of 08:18, 25 January 2018

Notes from the previous 24 hrs:
- Beam was off from 9am till 5:20 pm. At the end, Hall A was able to get their 22.5 uA current. Since then, beam was relatively stable.
- Upon return of the beam, a harp scan was performed: MCC and Our harp. Beam seems to be acceptable.
- After harp scan, about an hour has been spent on trigger and DAQ studies by Sasha and Sergei.
- We switched to production running at 7pm and has been taking production data since then.
- ABU (0.7+3.5+), BANU (0+0.3) for the last 3 shifts
- About xxxN triggers collected.
Issues:
- A couple of hours of beam time has been lost on fighting with DAQ while starting the next run (java out of memory, rebooting rocks, etc.)
- Sometime, a histogram or two would disappear in rootspy and reappear after monitoring restart.
- Once, a coherent edge had to be nudged by more than 50 MeV.
- BCAL ADC/TDC timing offsets jumped by 32 ns for some modules: [1]

@@ Line 7: / Line 7: @@
 #* After harp scan, about an hour has been spent on trigger and DAQ studies by Sasha and Sergei.
 #* We switched to production running at 7pm and has been taking production data since then.
+#* ABU (0.7+3.5+), BANU (0+0.3) for the last 3 shifts
+#* About xxxN triggers collected.
 # Issues:
 #* A couple of hours of beam time has been lost on fighting with DAQ while starting the next run (java out of memory, rebooting rocks, etc.)
+#* Sometime, a histogram or two would disappear in rootspy and reappear after monitoring restart.
+#* Once, a coherent edge had to be nudged by more than 50 MeV.
-#* Hall D switched from zero crossing to RF extracted [https://logbooks.jlab.org/entry/3460987] [https://logbooks.jlab.org/entry/3460994]
+#* BCAL ADC/TDC timing offsets jumped by 32 ns for some modules: [https://logbooks.jlab.org/files/2018/01/3520512/BCAL_Timing.png]
-#* No downtime incidents of more than 30 minutes after 8 hrs of beam studies
-#* Harp scans: [https://logbooks.jlab.org/entry/3461066 5C11](MCC), [https://logbooks.jlab.org/entry/3461067 5C11B](MCC), [https://logbooks.jlab.org/entry/3461084 Radiator]
-#** (Sigma_X,Sigma_Y) for this scan: (1.10, 0.39), (0.87, 0.20), (0.76, 0.12)