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)
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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
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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: |
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)
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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) |
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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
Davis 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
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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) |
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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
Davis file: |
Download
Davis 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 |