Monday, September 23, 2013

CD16 optics desired


Here's the email I sent out with CD 16 optics choices.

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Hi Folks,

Here's my guess at a filter list for CD16.  I'll post it on the blog, too.  It is also in the dropbox EE/docs/EXEScomponents.xlsx

Filter slot
1) 18a+ZnSe blocker (no change)
2) BBP5500_6000+CaF2 (no change)
3) open (no change)
4) N04679-4 + CaF2 blocker (remove N04582-8+MgF2 blocker)
5) Reading 6.2 + MgF2 blocker (move BP-6000-250 +MgF2 to decker slot 3
6) N07466-9 + CaF2 (remove BP4990_265+CaF2)
7) BP-6600-320+MgF2 (no change)
8) Soifer (no change)
9) N07053+9 + CaF2 blocker (no change)
10) BBP5030_5725+blocker (no change)
11) N07904-9 +CaF2 blocker (remove N10247-9 + CaF2 blocker) 
12) BP14100_850 (no change)

Decker slot:
1) BBP_8000_1100 + BaF2 blocker (no change)
2) BBP_4700_5615 + MgF2 blocker (install MgF2 blocker)
3) BP-6000-250 + MgF2 (moving from filter slot 5)
4) OCLI Q + BaF2 blocker

Lens wheel:
1) mirror
2) open
3) CaF2 window (38 mm) (remove ZnSe 38 mm window)
4) 1.5" diam KRS5 lens (no change, but may want to move toward detector - see below)
5) 1.5" ciam ZnSe lens (no change, but may want to move toward detector - see below)
6) BaF2 window (38 mm) (no change)

Detector position:
We should be back to where we were in CD13.  I believe this is 3. mm back from where we were in CD14.  Based on the images of the pupil in CD14

http://codgermmck.blogspot.com/2013/04/taas-summary.html

I think we want to leave the lenses where they are.  My reasoning is that the ZnSe was further from the detector in CD14 and seemed to provide sharper images.  The ZnSe is currently further from the detector.  When we move the detector back, the KRS5 lens should be about where the ZnSe lens was and the ZnSe lens will be even further away from the detector.  Note that we may want to use the echelle mirror to investigate focus for the cold stop during CD16.

-matt

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