581
edits
Changes
Jump to navigation
Jump to search
Line 102:
Line 102: + +
Diamond Radiator Thinning Using an Excimer Laser (view source)
Revision as of 21:49, 15 December 2016
, 21:49, 15 December 2016→Ablation Chamber
[[Image:ablationchamber.png|center|300px| CAD drawing of ablation chamber]]
[[Image:ablationchamber.png|center|300px| CAD drawing of ablation chamber]]
A roughing pumps was attached to one of the ports on the ablation chamber while a second port was connected to a digital flow controller and needle valve. This enabled the user to maintain a constant pressure to within 1 mtorr over the course of an ablation run. Vacuum pressures of a few tens of mtorr were achievable using this setup, however were not typically desired due to the large amounts of amorphous carbon build up after ablation occurred.
A roughing pumps was attached to one of the ports on the ablation chamber while a second port was connected to a digital flow controller and needle valve. This enabled the user to maintain a constant pressure to within 1 mtorr over the course of an ablation run. Vacuum pressures of a few tens of mtorr were achievable using this setup, however were not typically desired due to the large amounts of amorphous carbon build up after ablation occurred.
[[Image:iso1.png|center|thumb|300px|Figure: Rendering of ablation setup showing position of dial indicator used to locate the x-translation stage.]]
The diamond sits at a 45<\math>\degree<math> angle incident to the incoming laser pulse to prevent amorphous carbon from covering the entrance window. The setup is illustrated in the figure above.
==Sub-Micron Precision Using Dial Indicators==
==Sub-Micron Precision Using Dial Indicators==