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Diamond Radiator Thinning Using an Excimer Laser (view source)
Revision as of 19:17, 17 September 2009
, 19:17, 17 September 2009→Laser Thinning of Diamond
[[Image:excimer_laser.jpg|thumb|Current Excimer Laser to be brought online]]
[[Image:excimer_laser.jpg|thumb|Current Excimer Laser to be brought online]]
Laser ablation will be used to thin the diamond chip to the precise thickness required for the radiator. An older excimer laser offered by a local AMO group will converted from a 248 nm beam to the required 192 nm beam. Although the system was last used 10 years ago, it was left in a fully functioning state and was properly flushed upon decomposition. There may also be another unused excimer laser that can be used for parts in case any repair is needed.
==Work Schedule==
The following is a list of tasks required to get the Ar-F excimer laser online.
* Tend to the vacuum system: replace oil in diffusion pump, test for
serious leaks at moderately low pressure (10−6 Torr)
* Test the RF generator (most expensive/hard to replace!)
* Procure a bottle of pure Ar gas
* Flush the tube, turn it on and test output power
* In case of problems, another group has a system out of commission
and may allow us to salvage pieces.
Barring major repair: expected online by end of 2009 with $2-3k
Long-term operating goals:
* Switch optics to 192nm
* Get mixture of Ar-F, eventually procure a gas mixing system)
* Ensure reliable pulse train and consistent power output (±5%)