Hydroxyl Radical (OH) - LIF:

Transition: A2S+ - X2P (0,0) and (1,1) bands of OH

Appearance of the OH A-X system: Degraded to the red

Excitation wavelength: 321,0 to 302,0 nm

Flame/Burner: hydrogen/oxygen (H2/O2) flame of a welding torch

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Grating: 1200 lines/mm, UV and VIS excitation, Emissions: 260 to 295 nm

EES, point of measurement:

   center (center of the flame)

Excitation wavelength:

   UV:  322,75 nm to 301,78 nm

   VIS: 645,50 nm to 603,56 nm

   (UV and VIS simultaneously)

Emission wavelength:

   260 nm to 295 nm

Single Image:

   local distribution of signals inside the flame

Excitation wavelength:

   UV: 312,22 nm

   VIS: 624,44 nm

   (UV and VIS simultaneously)

Detected signals:

   OH-LIF A-X / from A-X (0,0) and (1,1) excitations:

(starting at: 302,2 nm (0,0) and 312,2 nm (1,1))

   OH-LIF A-X emissions:

(261 - 270 nm, 278 - 300 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: 80 mm / sum of pulses: 40 / 

UV pulse energy: not measured

   

Grating: 1200 lines/mm, UV and VIS excitation, Emissions: 295 to 330 nm

EES, point of measurement:

   center (center of the flame)

Excitation wavelength:

   UV:  322,75 nm to 301,78 nm

   VIS: 645,50 nm to 603,56 nm

   (UV and VIS simultaneously)

Emission wavelength:

   295 nm to 330 nm

Single Image:

   local distribution of signals inside the flame

Excitation wavelength:

   UV: 311,62 nm

   VIS: 623, 24 nm

   (UV and VIS simultaneously)

Detected signals:

   Rayleigh scattering: UV

   OH-LIF A-X / from A-X (0,0) and (1,1) excitations:

(starting at: 302,2 nm (0,0) and 312,2 nm (1,1))

   OH-LIF A-X emissions:

(302 - 330 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: 9,7 / entrance slit: 80 mm / sum of pulses: 10 / 

UV pulse energy: about ... to 1,2 mJ/pulse

   

Grating: 1200 lines/mm, UV and VIS excitation, Emissions: 330 to 365 nm

EES, point of measurement:

   center (center of the flame)

Excitation wavelength:

   UV:  322,75 nm to 301,78 nm

   VIS: 645,50 nm to 603,56 nm

   (UV and VIS simultaneously)

Emission wavelength:

   330 nm to 365 nm

Single Image:

   local distribution of signals inside the flame

Excitation wavelength:

   UV: 306,19 nm

   VIS:612,38 nm

   (UV and VIS simultaneously)

Detected signals:

   OH-LIF A-X / from A-X (0,0) and (1,1) excitations:

(starting at: 302,2 nm (0,0) and 312,2 nm (1,1))

   OH-LIF A-X emissions:

(302 - 330 nm, 342 - 355 nm)

   hot O2-LIF (weak) (see also chapter O2)

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: 80 mm / sum of pulses: 40 / 

UV pulse energy: about 0,8 to 1,3 mJ/pulse

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