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| Nuclear hyperfine mixing in 229Th89+ |
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Message ID: 176
Entry time: Sat Apr 9 03:57:10 2022
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| Author: |
Carsten |
| Category: |
Accelerator |
| Subject: |
New Cooler voltage after the crash of the cooler |
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After the restart of the cooler the Ohmlabs divider showed a voltage 16V lower than before. This could also be seen as a slight shift in the Schottky lines w.r.t to the bunching frequency and the marker. Corrected
the voltages at injection to DeltaU +3963V and in Sc 5/7 to + 3943V. Now perfect match with the old Schottky frequency.
Note: During the crash we found out that the device GECEKD2D did not show proper values. GECEKD2D is responsible for clearing the cooler of slow trapped ions ("clearing electrode").
Hence, the 16V may be due to partial filling of the space charge potential of te elctron beam. |