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| LIBELLE 2025 |
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Message ID: 77
Entry time: Fri May 16 21:23:44 2025
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| Author: |
Ragandeep, Rodolfo, Zoran, Nils |
| Category: |
Accelerator |
| Subject: |
Ion and laser beam position |
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We checked the ion beam position as well as the laser position with the two scraper in front (north) of the e-cooler (GECEDS1VU, GECEDS1HA) and after (south) the e-cooler (GECEDS2VU, GECEDS2HA). The values for the ion beam slightly changed in comparsion to the mesasurment performed in ELOG 65.
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motor | ion beam position (mm) from outside | ion beam position (mm) from inside | central beam position (mm) | |
DS1VU(GECEDS1VU) | -1.0 | - | 3.0 | |
DS1HA(GECEDS1HA) | -13.5 | -4.0 | -8.5 | |
DS2VU(GECEDS2VU) | 0.0 | - | 4.0 | |
DS2HA(GECEDS2HA) | -11.0 | -1.0 | -5.5
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The values for the laser position (within MRC) are given in the attached picture. The values we started from are
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| Stage 1 | Stage 2 | |
x | -0.050 | -0.800 | |
y | 0.601 | 0.602
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