User:MabelET/sandbox

= How to Turn Things On =

Pre-Warming the Quanta-Ray
Heat up till stable, on LP mode with full power, also make sure it’s on. Make sure the Nova Display-Rosh (laser sensor) is on and reading the laser’s output power. Use the Log (that should be next to the laser) to determine if the reading is stable and close to previously recorded numbers. It should take around 15-20 min. When it is stable or ‘warmed up’ lower the power to ‘start’, and turn mode to Exp (external), then turn back to full power. Not doing lowering the power before making it external risks burning the cell, which is the most expensive part of the laser.

Siran Cobra-Stretch Set Up
Turn on the laser and the two dye pumps, make sure they are filled. Using the 407 Spectra Physics sensor measure the output in Jewels, it should be around 4.

The MCP Detector AREF Power Supply
Turn the detector on. On the Pfeiffer Maxi-Gauge screen, make sure channel 6 is less that 10E-7 mbar. One the Power Supply the Digital Dial should be adjusted to read: -4500vol..

Adding the Gas

Fill the Vacuum with needed gas and to needed pressure.

Things to Turn On
·        Tektronix Oscilloscope

·        IOTA One Pulse Driver

·        Excimer Laser

Tuning the Laser
Put a note card in front of the Excimer’s beam. If the Oscilloscope’s screen is not a flat line adjust the laser’s mirrors. When the note card is removed, there should be a small peak that reaches the dotted line on the Oscilloscope’s screen. If not adjust the nodes again.

!Caution!  Lasers are Dangerous
Make sure if you are sitting in a chair, that your eye level is not lower or at the laser’s level.

Computer Usage
Turn the Dell Desktop on, and open up the Scan 4.3 application.

Scan 4.3
Make a location and name for the data file, in the Data File info box. Set the starting signal size (in nm), ending size, and increment of steps. Go to the Scope Tab and fit the gates to the incoming signal.

What to Do During the Experiment
Check in every 15 min or so, to make sure a fire hasn’t started or something blew up. Take the in between time to grab coffee and work on procrastinated projects.