Basic radiometry and SNR eq. for CCD, ICCD - UNIS

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References References Baker, D. J., Rayleigh, the unit for light radiance, Applied Op- tics, 13, 2160–2163, 1974. Baker, D. J., and G. J. Romick, The Rayleigh interpretation of the unit in terms of column emission rate or apparent radiance expressed in SI units, Applied Optics, 15, 1966–1968, 1976. Brändström, B. U. E., T. B. Leyser, ˚A. Steen, M. T. Rietveld, B. Gustavsson, T. Aso, and M. Ejiri, Unambigous evidence of HF pump-enhanced airglow, Geophys. Res. Lett., 26, 3561– 3564, 1999. Brändström, U., The Auroral Large Imaging System — Design, operation and scientific results, Ph.D. thesis, Swedish Insti- tute of Space Physics, Kiruna, Sweden, 2003, (IRF Scientific Report 279), ISBN: 91-7305-405-4. Chamberlain, J. W., Physics of the aurora and airglow, Classics in geophysics, AGU (American Geophysical Union), 1995, (A reprint of the original work from 1961). 113-1
Enell, C.-F., Optical studies of polar stratospheric clouds and related phenomena, Ph.D. thesis, Swedish Institute of Space Physics, Kiruna, Sweden, 2002, (IRF Scientific Report 278), ISBN: 91-7305-307-4. Gustavsson, B., T. Sergienko, M. T. Rietveld, F. Honary, ˚A. Steen, B. U. E. Brändström, T. B. Leyser, A. L. Aruliah, T. Aso, and M. Ejiri, First tomographic estimate of volume dis- tribution of enhanced airglow emission caused by HF pump- ing, J. Geophys. Res., 106, 29,105–29,123, 2001a. Gustavsson, B., ˚A. Steen, T. Sergienko, and B. U. E. Bränd- ström, Estimate of auroral electron spectra, the power of ground-based multi-station optical measurements, Phys. Chem. Earth, 26, 189–194, 2001b. Holst, G. C., CCD arrays, cameras and displays, second ed., The International Society for Optical Engineering, 1998, ISBN: 0-8194-2853-1. Hunten, D. M., F. E. Roach, and J. W. Chamberlain, A photometric unit for the aurora and airglow, J. Atmos. Terr. Phys., 8, 345–346, 1956. Janesick, J. R., T. Elliott, S. Collins, M. M. Blouke, and J. Free- man, Scientific charge-coupled devices, Optical Engineering, 26, 692–714, 1987. 113-2
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Basic radiometry and SNR equations
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This is about taking pictures of da
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Radiometry UNIS 2011-11-15 - p. 5
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Radiometry vs. photometry Holst [19
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Radiometry “Mathematics is often
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Photon flux: in energy units: Flux
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Spectral radiance Also known as spe
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Spectral irradiance Also known as s
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At apperture: Eγapp = Φγapp Aapp
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Photometric units scoptic—rods (K
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The foot-lambert A foot-lambert or
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The Rayleigh (1) Consider a cylindr
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The Rayleigh (3) In SI-units the Ra
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By now you should realized that. .
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. . . God said: Go to, let us go do
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and now. . . UNIS 2011-11-15 - p. 2
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The 4π confusion Therefore, we pro
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Can we agree on this? The apparent
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Still confused. . . . . . but at a
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Where are my photons? • Transmitt
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What is noise? UNIS 2011-11-15 - p.
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Notation 〈X〉 2 variance of X
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E2V TECH CCD201 UNIS 2011-11-15 - p
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CCD-noise sources UNIS 2011-11-15 -
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(20) (21) (22) 〈n e − s 〉 = =
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(23) (24) 〈n e − p 〉 = Patter
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Signal-to-noise ratio for a CCD •
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Signal-to-noise ratio for a CCD •
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Dynamic range (1) The Dynamic Range
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ICCD UNIS 2011-11-15 - p. 51
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SNR for a CCD • Measured signal-t
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SNR for a CCD • Measured signal-t
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SNR for an ICCD • The signal-to-n
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SNR for an emCCD The signal-to-nois
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SNR vs. of integration time SNR 100
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SNR: CCD, ICCD and emCCD SNR 1000 1
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SNR Fast: ≈ 2900 photons/pixel 10
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SNR Slow: ≈ 42 photons/pixel 100
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Intercalibration UNIS 2011-11-15 -
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The European Rayleigh UNIS 2011-11-
Page 89 and 90: Intercal. procedure • Calibrators
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Page 95 and 96: [Rayleighs/Angstrom] 1000 100 10 1
Page 97 and 98: Calibration issues UNIS 2011-11-15
Page 99 and 100: Abs. calibration (ALIS) UNIS 2011-1
Page 101 and 102: ALIS UNIS 2011-11-15 - p. 81
Page 103 and 104: Spectroscopic imaging 4000 4500 500
Page 105 and 106: Scientific results and capabilities
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Page 109 and 110: electron energy 10 2 10 1 10 0 Auro
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Page 113 and 114: UNIS 2011-11-15 - p. 92
Page 115 and 116: UNIS 2011-11-15 - p. 94
Page 117 and 118: Radio-induced optical emissions UNI
Page 119 and 120: Tomography of RIOE After Gustavsson
Page 121 and 122: UNIS 2011-11-15 - p. 100
Page 123 and 124: A strange meteor trail 130 120 110
Page 125 and 126: Future plans and challenges UNIS 20
Page 127 and 128: We do not understand: • Creation
Page 133 and 134: ALIS 2010-2014 • Electrodynamics
Page 135 and 136: and now. . . UNIS 2011-11-15 - p. 1
Page 137 and 138: It’s The end! UNIS 2011-11-15 - p
Page 139: The end? Kiruna ASC 2007-02-05 17.3
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Basic radiometry and SNR eq. for CCD, ICCD - UNIS

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