I installed the changes to the HWSY optical layout per T1400686. To do this, I:

• removed the original AirLens from the HWSY layout
• installed the PLCX-50.8-772.6-UV lens on the HWS periscope approximately 330mm from the upper periscope mirror (UPM)
• realigned the 830nm probe beam to the irises on the HWS table and onto the lower periscope mirror (LPM) [I adjusted the position of the main HWSY BS to move the probe beam closer to the center and away from the edge of this optic].
• checked that the beam wasn't clipping on any of the optics on the table.
• adjusted the UPM and LPM to align the leakage ALS-Y (green) beam through the irises
• adjusted the final mirror before the HWS camera to center the green beam onto the camera.
• set the probe beam to 12,000 counts (on H1:TCS-ITMY_HWS_SLEDSETCURRENT). The measured PD voltage of the SLED was 2.7V (roughly 40% of maximum).
• set the HWS camera frame rate to 1 frame per second. I used the wus command on the HWS camera to set this to the default frame rate to use whenever the camera powers on.
• on H1HWSMSR, I ran the stream_image_Y command in /opt/Hartmann_Sensor_SVN/release/bin/stream_image_Y/distrib/ to view the image from the camera in real-time
• I observed a return beam from the ITMY region that appeared and disappeared as I turned the HWS SLED on and off.

The return beam is shown below. I still need to move the HWS to the conjugate plane of ITMY and determine the magnification between those planes.