1D single-shot spontaneous Raman scattering for temperature and multi-species measurements in flame. Comparison of back-illuminated CCD with BI-EMCCD and ICCD cameras

H. Ajrouche (1) , A. Lo (1) , P. Vervisch (1) , Armelle Cessou (1)

1 CORIA - Complexe de recherche interprofessionnel en aérothermochimie

The critical aspect of 1D single-shot Spontaneous Raman Scattering (SRS) experiments in flames is the requirement of high efficiency of the detection system associated with a fast temporal gating. Single-shot SRS measurements in flames are performed either with ICCD or with back-illuminated CCDs associated with a fast shutter. Here, a Pockels cell shutter provides the fast gating for BI-CCD or BI-EMCCD. The purpose of the present paper is to compare the three detectors by quantifying the accuracy and uncertainty of 1D single-shot SRS measurements of temperature, low and high density in near-adiabatic CH 4 /air flames. On one hand, the BI-CCD with the PCS is the most efficient detection systems in extreme low light situations for single-shot temperature measurements, and on the other hand the BI-EMCCD is the most powerful tool for best detectability of low density species.

Domaines: Milieux fluides et réactifs

H. Ajrouche, A. Lo, P. Vervisch, Armelle Cessou. 1D single-shot spontaneous Raman scattering for temperature and multi-species measurements in flame. Comparison of back-illuminated CCD with BI-EMCCD and ICCD cameras. European Combustion Meeting 2015, Mar 2015, Budapest, Hungary. ⟨hal-02392351⟩