Kenji Ito, Kiyoshi Ueda, Takeshi Namioka, Kouichi Yoshino, and Yumio Morioka, "High-resolution absorption spectrum of Ne i in the region of 565–595 Å," J. Opt. Soc. Am. B 5, 2006-2014 (1988)
The absorption spectrum of Ne i was observed photographically in the wavelength region of 565–595 Å with the high-resolution spectrograph at the Photon Factory in Japan. From the observed term values, the first ionization potentials I(2p5 2P3/2) and I(2p5 2P1/2) were found to be 173 930.0 ± 0.2 and 174 710.4 ± 0.2 cm−1, respectively. Furthermore, the five-channel quantum-defect theory is applied to the analysis of the present experimental term values. It is found that the multichannel quantum-defect theory describes well the absorption spectrum of Ne i observed in the present measurement.
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Ref. 2. Ref. 3.
The lines with n ≧ 44 are blended with the
lines, and the lines with n ≧ 16 are blended with the
lines.
Partially overlapped with the
line.
Partially overlapped with the
lines.
Calculated from the transition energies obtained by Harth et al.10 and from the term value of the
obtained by Kaufman and Minhagen.2 These term values and the present ones are, thus, both for natural Ne.
The
lines with n ≧ 37 and the
lines with n ≧ 15 were excluded in the MQDT fitting procedure.
Should be assigned to the
level.
Table 7
Ionization Potentials I3/2 and I1/2 for Ne i and the Fine-Structure Splitting Δ = I1/2 − I3/2 (in cm−1)
Ref. 3. Ref. 10. The ionization potentials by Harth et al.10 were calculated by using 134 041.840 ± 0.040 cm−1 for T(3s3P2) by Kaufman and Minhagen2 and are for natural Ne.
Table 8
Eigenchannel MQDT Parameters for Five J = 1° Channels of Ne i
Ref. 2. Ref. 3.
The lines with n ≧ 44 are blended with the
lines, and the lines with n ≧ 16 are blended with the
lines.
Partially overlapped with the
line.
Partially overlapped with the
lines.
Calculated from the transition energies obtained by Harth et al.10 and from the term value of the
obtained by Kaufman and Minhagen.2 These term values and the present ones are, thus, both for natural Ne.
The
lines with n ≧ 37 and the
lines with n ≧ 15 were excluded in the MQDT fitting procedure.
Should be assigned to the
level.
Table 7
Ionization Potentials I3/2 and I1/2 for Ne i and the Fine-Structure Splitting Δ = I1/2 − I3/2 (in cm−1)
Ref. 3. Ref. 10. The ionization potentials by Harth et al.10 were calculated by using 134 041.840 ± 0.040 cm−1 for T(3s3P2) by Kaufman and Minhagen2 and are for natural Ne.
Table 8
Eigenchannel MQDT Parameters for Five J = 1° Channels of Ne i