Reports until 15:49, Thursday 04 June 2026
H1 PSL (PSL, SPI)
jason.oberling@LIGO.ORG - posted 15:49, Thursday 04 June 2026 - last comment - 15:54, Thursday 04 June 2026(90490)
SPI PSL Shutter Installed

R. Short, J. Oberling, J. Kissel

This afternoon we installed the shutter in the SPI pickoff path on the PSL table.  We installed it in between the 2 SPI lenses.  The cable was tied down with some dog clamps and cable ties, and we checked to make sure it was well clear of all known beams (it doesn't really look like it in the picture, but the shutter cable is ~3 inches away from the ALS beam and cannot drift into its path).  Once we ran the cable outside the enclosure, Jeff plugged it into the driver and we ran several on/off tests, with the shutter successfully actuating as expected, every time.  I'll update the as-built PSL table layout to include the shutter.

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ryan.short@LIGO.ORG - 15:54, Thursday 04 June 2026 (90491)

Adding pictures of the current location of the shutter controller outside the enclosure. Final picture is of the controller as it was left; unplugged with the shutter closed.

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