YFE Turn-On Procedure

YFE Turn on Procedure:

• Set hutch to “Class 1”, “Class 4 Glass Laser” or “Class 4 Dual Laser”or “Class 4 Split Mode
• Don the appropriate eyewear
• At the LSS display, badge in and open Shutter S4

Turn on each of the 4 chillers:

• Requires a ~ 30 minute run time to reach stable set temp
• YFE output energy will be low until set temperature is reached
• Set Temperature for each chiller is:
• 2mm ABCD = 30.3 degrees C with 49psi and a .95GPM flow rate
• 2mm EFGH = 30.3 degrees C with 49psi and a .95GPM flow rate
• 6mm AB = 26 degrees C with 43psi and a 2.0GPM flow rate
• 10mm CD = 24 degrees C with 47psi and a 2.0GPM flow rate

At the NP Photonics Seed Laser:

• Verify NP Photonics Seed Laser is Operational
• If power output reads 0 then:
• Go to LSS display, badge in and press the “Press to reset interlocks” button at the top right of screen
• At the NP Photonics seeder, toggle the “pump” switch from position 1 to 0 and then back to 1
• The output power indicated on the screen should now begin ramp up to the max value of ~ 140mw
• Power mode = ACC and Run Suppression = 0

Note: there are TWO NP Photonics "The Rock" seed lasers in rack R64B along the south wall of the hutch:

• the free-standing unit sitting at the top of the rack (as indicated in the picture below) is the operating unit
• the rack-mounted unit in the middle of the rack is a spare – don't get fooled by this unit without any lights on

At Epics:

• Verify in Epics that seed laser is “locked” to min and not max

Verify Pulse is Locked:

Blue ring should be illuminated along with the green “lock” LED

eDrive Turn On:

• Rotate key switch clockwise at each eDrive
• Press “Power” button at each eDrive

Turn on TDK Lambda power supplies:

1. Toggle power rocker switch to “on” position at each of the 4 supplies

1. Press the tiny “out” button at each of the 4 supplies. The green LED above the button should then be illuminated