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There are 6 cameras in the upgraded LPL layout: the new camview can be opened in mechome [detectors>view-long pulse Laser Cams> dropdown (figure below 1)]. For camview detail please check New LPL Camview
The full alignment using these 6 cameras is recommended. For operation and monitoring purposes LPL_100J_1, LPL_100J_3, LPL_100J_4, are needed to open. These imagers locations and descriptions are as followed (figure below 2).
- LPL_100J_2: the imager looking behind the 1" amplifier and before the relay tube
- LPL_100J_1: the imager looking behind the big Faraday Rotator
- LPL_100J_5: the imager looking before the east side 2" heads (IJ, and GH input)
- LPL_100J_6: the imager looking before the west side 2" head (AB and EF input)
- LPL_100J_3: the imager looking at combined east 527nm (IJ+GH output)
- LPL_100J_4: the imager looking at combined west 527nm (AB+EF output)
Check alignment
- align 10Hz pulse through the pinhole (visual check: should not see scatter light or adjust the pinhole position)
- check i1 and i2: if it's very off, adjust with M3 and M4 (use LPL_100J_1 or IR card)
- check i3: beam should be in the center of i3 (use LPL_100J_1 or IR card)
- check i4: close i3 to create ring pattern (use LPL_100J_1 or IR card) adjust with the mirror befoer i3.
- check i5 and i6: (use LPL_100J_5 and LPL_100J_6) adjust with M8 and M9
- check i7, i8 and i9, i10 (use LPL_100J_3) adjust with M2, M22 and BS3
- check i11, i12 and i13, i14 (use LPL_100J_4) adjust with M10, M13 and M18
- check i15, i16 (use card) first close i3 half way, block GH, adjust LWP15 and M26. Then open GH, block IJ, adjust with LWP10 and LWP12
- check i17, i18 (use card) first close i3 half way, block EF, adjust LWP2 and M15. Then open EF, block AB adjust with LWP6 and LWP8