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vatt:instrumentation_and_computers [2021/03/31 20:47]
paul [VATT CCD Imager - Vatt4k]
vatt:instrumentation_and_computers [2024/07/05 13:27] (current)
paul [Galway Ultra Fast Imager - GUFI]
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 ===== Galway Ultra Fast Imager - GUFI ===== ===== Galway Ultra Fast Imager - GUFI =====
  
-  * This L3CCD system, based on an Andor iXon back-illuminated CCD camera, gives a readout time of only 2ms, extremely high time resolutions of up to 400 images a second (subframed), and very low light level sensitivity+  * This is an Andor Marana 4.2B-11 back-illuminated scientific CMOS camera
-  * Field of view on VATT, 3 arcmin with current focal reducer+  * {{ :vatt:andor-marana-scmos-specifications.pdf | specifications}} 
-  * On loan from NUI Galway, currently until June 2011+  * Array size: 2048 (Wx 2048 (H) 4.2 Megapixel 
-  * Consult Richard Boyle for technical details, and see the [[http://astro.nuigalway.ie/astro/research/cool_stars_brown_dwarfs_exoplanets/|NUI Galway "Brown Dwarfs and Substellar Objects" group]].+  * Pixel size: 11 μm x 11 μm 
 +  * Array Area: 22.5 mm x 22.5 mm (31.9 mm diagonal) 
 +  * Field of view on VATT: 4.7 arcmin x 4.7 arcmin 
 +  * On loan from University of Galway. 
 +  * Consult Richard Boyle for technical details.
    
  
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   * [[vatt:vattspec|VATT Spectrograph]]   * [[vatt:vattspec|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. 
- 
-     ITL Serial Number 8228 
-     2688x512 pixels, 15x15 microns 
-     Detector operating temperature -110C 
-     Gain: 1.3 e/DN with setting 10; 2.6 e/DN with setting 5 
-     Full well, both gains: ADC limited (65k DN) = 85,000 or 170,000 electrons 
-     Noise: 3.4 electrons (3.2 in overscan region) 
-     QE Curve 
- 
-  * [[VATT:vatt-vattspec_efficiency|efficiency]]: determined by Mark Wagner for telescope plus spectrograph 
-  * further details are under the [[vatt:vattspec-gen-instructions|Instructions for use of the VATT Spectrograph]]. 
-  * bandpass filters available: S8612 (red blocking); GG-400, GG-475, OG-550 (cut-offs to the blue in nm). 
- 
 ===== Instrument Interface (a.k.a. the Guider Box) ===== ===== Instrument Interface (a.k.a. the Guider Box) =====
  
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   * effective back focal distance, from guide box to focal surface, is 2.000".   * effective back focal distance, from guide box to focal surface, is 2.000".
   * contains two filter wheels, each holding four 3.48" square filters. Adapters to accommodate 2" and 3" square filters are available.   * contains two filter wheels, each holding four 3.48" square filters. Adapters to accommodate 2" and 3" square filters are available.
-  * UBVRI, uvby, Vilnius, Sloan, ECAS, and Order Blocking filters are currently provided.+  * UBVRI, uvby, Vilnius, Sloan, ECAS, and Order Blocking [[vatt:filters|filters]] are currently provided.
   * integrating sphere with continuum and calibration lamps.   * integrating sphere with continuum and calibration lamps.
vatt/instrumentation_and_computers.1617248841.txt.gz · Last modified: 2021/03/31 20:47 by paul