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

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Small structure The aurora is extremly rich in small structure “With respect to understanding the dynamic coupling between the magnetosphere and the auroral ionosphere the observational bias toward bright aurora is physically unjustified” [Semeter 2001] UNIS 2011-11-15 – p. 105
We do not understand: • Creation of narrow arcs UNIS 2011-11-15 – p. 106
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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
Page 75 and 76: Where are my photons? • Transmitt
Page 77 and 78: Where are my photons? • Transmitt
Page 79 and 80: SNR: CCD, ICCD and emCCD SNR 1000 1
Page 81 and 82: SNR Fast: ≈ 2900 photons/pixel 10
Page 83 and 84: SNR Slow: ≈ 42 photons/pixel 100
Page 85 and 86: Intercalibration UNIS 2011-11-15 -
Page 87 and 88: The European Rayleigh UNIS 2011-11-
Page 89 and 90: Intercal. procedure • Calibrators
Page 91 and 92: 25 20 15 10 5 Intercal. workshops N
Page 93 and 94: and the FMI-sphere UNIS 2011-11-15
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
Page 107 and 108: UNIS 2011-11-15 - p. 87
Page 109 and 110: electron energy 10 2 10 1 10 0 Auro
Page 111 and 112: UNIS 2011-11-15 - p. 90
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: Future plans and challenges UNIS 20
Page 129 and 130: We do not understand: • Creation
Page 131 and 132: 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 and 140: The end? Kiruna ASC 2007-02-05 17.3
Page 141 and 142: Enell, C.-F., Optical studies of po
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Basic radiometry and SNR eq. for CCD, ICCD - UNIS

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