LGS diagnostics Results (so far) Anna Moore, Hal Petrie LGS facility meeting 30 th Jan 2007.
-
date post
22-Dec-2015 -
Category
Documents
-
view
218 -
download
0
Transcript of LGS diagnostics Results (so far) Anna Moore, Hal Petrie LGS facility meeting 30 th Jan 2007.
LGS diagnostics LGS diagnostics
Results (so far)Results (so far)
Anna Moore, Hal PetrieAnna Moore, Hal Petrie
LGS facility meetingLGS facility meeting3030thth Jan 2007 Jan 2007
Set-up
• COUDE– Photodiode
• Average power• Macro pulse profile
– Near field image (pupil)
– Far field image (spot)
– Collimation• Shear plate (Jenny’s)
• PRIME FOCUS– Photodiode
• Average power• Macro pulse profile
– Near field image (pupil)
– Far field image (spot)
– Wavefront map• Shack-Hartmann sensor
Far field Image
660nm HeNe laser7th Jan 2007PRIME FOCUS
Fl=1000mmFor ½ inch beam size FWHM of spot = 64m
570 pixels (8.4m/pix)02:56
Near Field Image
660nm HeNe laser7th Jan 2007PRIME FOCUS
CCD is conjugated topick-off wedge
570 pixels (~4in, need to check*)02:58
Far field Image
589nm laser7th Jan 2007PRIME FOCUS
Fl=1000mmFor ½ inch beam size FWHM of spot = 64m
01:18
Far field Image
589nm laser7th Jan 2007PRIME FOCUS
Fl=1000mmFor ½ inch beam size FWHM of spot = 64m
01:25
Far field Image
589nm laser7th Jan 2007PRIME FOCUS
Fl=1000mmFor ½ inch beam size FWHM of spot = 64m
02:04
Far field Image
589nm laser7th Jan 2007PRIME FOCUS
Fl=1000mmFor ½ inch beam size FWHM of spot = 64m
02:24