Figure 5
Photon energy of gaseous neon ionization spectra with conversion for the sine arm position. (a) After switching grating position; (b) repeated scans over the same spectral range without switching grating position; (c) repeated scans of the grating angle measured with an autocollimator. (d)–(f) As for (a)–(c) but using gaseous nitrogen; the energy shift was decreased as the angular dispersion is smaller in this range. |