Took over from morning shift and keep scanning
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Time | File | Ohmlabs | PTB 32 | PTB 33 | ESR intensity SC8 / 1e6 | Typical SIS injections / 1e9 | NTCAP file | comments | |
2025-05-18 16:35 | 153 | 205821 | 205827 | 205817 | 0.8 | 2.3 | SC_2025-05-18_13-52-38 | Inconsistent SIS Injections, Voltages all drifted slightly, checked the beam positions by moving the scraper on the remaining ions after scan, Scraper GECEDS2HU was used and the horizontal alignment was confirmed to still be good, Carsten re-sent some SIS commands but changed nothing | |
2025-05-18 17:38 | 154 | 205822 | 205828 | 205829 | 0.7 | 2.0 | SC_2025-05-18_13-52-38 | Unlucky SIS injections, Voltages do not drift much anymore, beam after scan was used to scrape again, checked vertical alignment with GECEDS1VU, ion beam located at -0.5, laser beam still clearly visible, around 4mm too high compared to ion beam, GECEDS1HU confirms horizontal alignment is also good like in Scraper 2 | |
2025-05-18 18:43 | 155 | 205824 | 205830 | 205831 | 0.9 | 2.5 | SC_2025-05-18_13-52-38 | GECEDS1HU destroyed ion beam at -13.0 | |
2025-05-18 19:32 | 156 | 205822 | 205829 | 205830 | 0.8 | 3.0 | SC_2025-05-18_13-52-38 | First few SIS injections were very bad, after that very good, 0.5 on GECEDS2VU and the ion beam vanishes, fits good with laser beam, delay of the laser reduced by 7ns | |
2025-05-18 20:21 | 157 | 205822 | 205828 | 205830 | 0.8 | 2.4 | SC_2025-05-18_13-52-38 | | |
2025-05-18 20:57 | 158 | 205822 | 205828 | 205830 | 0.7 | 2.5 | SC_2025-05-18_13-52-38 | | |
2025-05-18 21:38 | 159 | 205820 | 205826 | 205828 | 1.3 | 2.8 | SC_2025-05-18_13-52-38 | | |
2025-05-18 22:13 | 160 | 205820 | 205826 | 205827 | 1.0 | 2.8 | SC_2025-05-18_13-52-38 | | |
2025-05-18 22:46 | 161 | 205820 | 205826 | 205827 | 1.7 | 2.9 | SC_2025-05-18_13-52-38 | | |
2025-05-18 23:22 | 162 | 205822 | 205829 | 205830 | 3.5 | 2.7 | SC_2025-05-18_13-52-38 | While scanning, at step 16 something weird happened and the accumulated counts decreased only in that step | |
2025-05-18 00:00 | 163 | 205822 | 205828 | 205829 | 5.0 | 2.8 | SC_2025-05-18_13-52-38 | 22 injections and 75 breeding cycles | |
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Timing: We shifted the laser approximately 8 ns to an earlier time to compensate for the 2-3 m distance between the target and the detection region (please note that earlier times are located to the right since the x-axis is the time after the event until the common stop). The positions of the laser pulse on the photodiodes are therefore shifted to the right. |