Plasma Wind Tunnel Investigation of European Ablators in Nitrogen/Methane Using Emission Spectroscopy

Table 2

Parameters of spectroscopic setup.

Test cond.	Spectrometer grid	Exposure time/frame rate	Wavelength range/nm	Distance to probe surface
C1	600 L/mm	1 s/1.1874 s	525–575	5 mm
C1	300 L/mm	1 s/1.1874 s	500–600	3 mm
C2	600 L/mm	1 s/1.1874 s	525–575	5 mm
C2	600 L/mm	1 s/1.1874 s	525–575	3 mm