Differences

This shows you the differences between two versions of the page.

--- vatt:vattspec [2020/01/28 11:07]
davner
+++ vatt:vattspec [2021/03/31 21:24] (current)
paul
@@ Line 1: / Line 1: @@
 ====VATT Spectrograph====
+  * This optical region spectrograph has AR coated refractive optics, with a beam size at its camera of 125 mm, giving …
+  * slit length: 30 arcsec
+  * wavelength range: 360 - 950 nm
+  * spectral coverage: 100 nm at 0.1 nm resolution
+  * spectral resolutions: 0.1, 0.2, and 0.4 nm with 1 arcsec wide slit
+  * detector: back illuminated, low noise CCD STA0520A, with very nice cosmetics.
   STA0520A CCD
 ×512 pixels, 15 microns
@@ Line 9: / Line 16: @@
   Noise is 3.4 electrons (3.2 in overscan region)
-===Documentation===
+  * [[VATT:vatt-vattspec_efficiency|efficiency]]: determined by Mark Wagner for telescope plus spectrograph
-  * [[http://www.vovatt.org/media/pdf/VATTSpec-Instructions.pdf|General Instructions]] (at [[http://vovatt.org/the-telescope-instruments|vovatt.org]])
+  * further details are under the {{ :vatt:vattspec-instructions.pdf|General Instructions}} for use of the VATT Spectrograph.
-  * [[http://www.vovatt.org/media/pdf/VATTSpec-Guider-Notes.pdf|Instructions on Guiding]] (at [[http://vovatt.org/the-telescope-instruments|vovatt.org]])
+  * bandpass [[vatt:filters|filters]] available: S8612 (red blocking); GG-400, GG-475, OG-550 (cut-offs to the blue in nm).
+===Documentation===
+  * {{ :vatt:vattspec-instructions.pdf |General Instructions}}
+  * {{ :vatt:vattspec-guider-notes.pdf |Instructions on Guiding}}
 ===Maintenance===
- *Argon Calibration Lamp was replaced on 4/26/2013.
+  * Argon Calibration Lamp was replaced on 4/26/2013.
-   Note: There is some concern the lamps are burning out faster than they should.
+  * Note: There is some concern the lamps are burning out faster than they should.
-===QE Curve===
+===Chip QE Curve===
-{{:vatt:qe_vattspec.png?nolink&600|}}
+{{:vatt:qe_vattspec.png|}}

MOON

User Tools

Site Tools

Differences

Page Tools