CH - Radical - LIF:

Transition: A2D - X2P (0,0) band of CH

Appearance of the CH A-X bands: Degraded to the violet

Excitation wavelength: 442,0 to 420,0 nm

Flame/Burner: methane/air (CH4/air) flame of a Bunsen burner

Grating of the spectrograph: 100 l/mm

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Grating: 100 lines/mm, only VIS excitation, Emissions: 290 to 705 nm, spectrograph entrance slit: 1000 mm

Rayleigh scattering removed with correct selection of ICCD-delay (ICCD opens after Rayleigh)

EES, point of measurement:

   flame front (flame front of the flame)

Excitation wavelength:

   UV:  no UV excitation

   VIS: 445,00 nm to 419,44 nm

Emission wavelength:

  290 nm to 705 nm

Single Image:

   local distribution of signals inside the flame

Excitation wavelength:

   UV: no UV excitation

   VIS: 430,88 nm

  

Detected signals:

   no Rayleigh scattering (ICCD opens after Rayleigh)

   CH-LIF A-X / from A-X (0,0) excitation:

(starting at about 440,0 nm (0,0))

   CH-LIF A-X emissions:

(431 nm)

Download common measurement report for detailed informations about flame, laser beam position, pulse energy, ICCD gain, etc: 

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Download Davis file:

Download ASCII file:

CCD dynamic: 12 bit / ICCD gain: 9,9 / entrance slit: 1000 mm /sum of pulses: 50 /

UV pulse energy:  about ... to ... mJ/pulse

 

Grating: 100 lines/mm, UV and VIS excitation, Emissions: 190 to 605 nm

Rayleigh scattering removed with correct selection of ICCD-delay (ICCD opens after Rayleigh)

EES, point of measurement:

   flame front (flame front of the flame)

Excitation wavelength:

   UV:  221,00 nm to 209,72 nm

   VIS: 442,00 nm to 419,44 nm 

   (UV and VIS simultaneously)

Emission wavelength:

  190 nm to 605 nm

Single Image:

   local distribution of signals inside the flame

Excitation wavelength:

   UV: 215,44 nm

   VIS: 430,88 nm

   (UV and VIS simultaneously)

Detected signals:

   no Rayleigh scattering (ICCD opens after Rayleigh)

   CH-LIF A-X / from A-X (0,0) excitation:

(starting at about 440,0 nm (0,0))

   CH-LIF A-X emissions:

(390 nm, 431 nm, 472 nm)

   C2-LIF / Swan band emissions:

      (473 nm, 516 nm, 563 nm)

Download common measurement report for detailed informations about flame, laser beam position, pulse energy, ICCD gain, etc: 

Download MS Word file:

Download Davis file:

Download ASCII file:

CCD dynamic: 12 bit / ICCD gain: 9,9 / entrance slit: 100 mm /sum of pulses: 50 /

UV pulse energy:  about 2,7 to 1,0 mJ/pulse

 

Grating: 100 lines/mm, UV and VIS excitation, Emissions: 190 to 605 nm

EES, point of measurement:

    flame front  (cone of the flame)

Excitation wavelength:

   UV:  215,70 nm to 209,72 nm

   VIS: 431,40 nm to 419,44 nm

   (UV and VIS simultaneously)

Emission wavelength:

   190 nm to 605 nm

EES, point of measurement:

   reaction zone (outer range of the flame)

Excitation wavelength:

   UV:  215,70 nm to 209,72 nm

   VIS: 431,40 nm to 419,44 nm

   (UV and VIS simultaneously)

Emission wavelength:

   190 nm to 605 nm

Single Image:

   local distribution of signals inside the flame

Excitation wavelength:

   UV: 214,46 nm

   VIS: 428,92 nm

   (UV and VIS simultaneously)

Detected signals:

   Rayleigh scattering: UV (+ 2nd o.) and VIS

   NO-LIF A-X / from A-X (1,0) excitation (weak)

   CH-LIF A-X / from A-X (0,0) excitation:

(starting at about 440,0 nm (0,0))

   CH-LIF A-X emissions:

(390 nm, 431 nm, 472 nm)

   C2-LIF / Swan band emissions (see chapter C2)

Detected signals:

   Rayleigh scattering: UV and VIS

   NO-LIF A-X / from A-X (1,0) excitation:

(starting at 215,3 nm (1,0))

   NO-LIF A-X emissions:

(327 nm, 311 nm, 295 nm, 281 nm, 268 nm, 256 nm, 245 nm, 234 nm, 225 nm, 215 nm)

   Rayleigh and NO-LIF in 2nd order

Download common measurement report for detailed informations about flame, laser beam position, pulse energy, ICCD gain, etc: 

Download MS Word file:

Download Davis file:

Download ASCII file:

Download Davis file:

Download ASCII file:

CCD dynamic: 12 bit / CCD gain: 5,8 / entrance slit: 100 mm / sum of pulses: 50 /

UV pulse energy: about 2,7 to 1,0 mJ/pulse

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