Study of n = 2, Δ n = 0 transition of Be-, B-, C-, N- and O-like sequence in the beam–foil spectrum of titanium

Abstract

The foil-excited the spectrum of highly stripped titanium ions between 12?40?nm has been studied. Titanium ions of 80 and 120?MeV were provided by the HI-13 tandem accelerator at the China Institute of Atomic Energy. GIM-957 XUV-VUV monochromator was refocused to get highly-resolved spectra. Our experimental results and the published spectral data of laser-produced plasma show agreement in nearly all cases within ?0.03?nm. The spectra contained some weak or strong lines previously unclassified. These spectral lines mainly belong to 2s2p2 for TiXVIII, 2p3 for TiXVIII, 2s2p3 for TiXVII, 2p64p for Ti XII and 2p63d for Ti XII transitions.