chara:climb_lab_alignment
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chara:climb_lab_alignment [2020/07/16 19:30] gail_stargazer |
chara:climb_lab_alignment [2020/07/16 19:32] gail_stargazer |
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| - Put onto the fold mirror labeled IR23 the round paper target (lying around the table nearby) to see how badly the beam splitter is misaligned. The laser beam does not have to be perfectly centered on that loose target. If it is way off, perhaps partially missing the fold mirror, then move the IRBC23 actuators by hand to roughly center on the fold mirror. At this point when you remove the paper target from the fold mirror, you should be able to see a green spot shining on the cold stop behind NIRO window. Then all that needs to be done is to get that spot into the hole in the middle of the cold stop. Make sure that the picomotors on IRBC23 are controlling the beam, in other words, the actuators are pressed against the flex mount. | - Put onto the fold mirror labeled IR23 the round paper target (lying around the table nearby) to see how badly the beam splitter is misaligned. The laser beam does not have to be perfectly centered on that loose target. If it is way off, perhaps partially missing the fold mirror, then move the IRBC23 actuators by hand to roughly center on the fold mirror. At this point when you remove the paper target from the fold mirror, you should be able to see a green spot shining on the cold stop behind NIRO window. Then all that needs to be done is to get that spot into the hole in the middle of the cold stop. Make sure that the picomotors on IRBC23 are controlling the beam, in other words, the actuators are pressed against the flex mount. | ||
| - | After that you should be able to see all three WL spots in NIRO from Beam 2 and also from Beam 3. Use the pixel area of the detector and the alignment readouts from the CLIMB GTK to align the light into the correct pixels using the 5 steps listed above. | + | After that you should be able to see all three WL spots in NIRO from Beam 2 and also from Beam 3. Use the pixel area of the detector and the alignment readouts from the CLIMB GTK to align the light into the correct pixels using the original |
| **TIPS** | **TIPS** | ||
chara/climb_lab_alignment.txt ยท Last modified: 2020/07/16 19:34 by gail_stargazer
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