J. Sugar, V. Kaufman, P. Indelicato, and W. L. Rowan, "Analysis of magnesiumlike spectra from Cu xviii to Mo xxxi," J. Opt. Soc. Am. B 6, 1437-1443 (1989)
The magnesiumlike spectra of Cu to Mo have been observed with laser- and tokamak-generated plasmas in the range of 100–300 Å. We give wavelengths accurate to ±0.005 Å and classifications of transitions among the 3s2, 3p2, 3d2, 3s3p, 3s3d, and 3p3d configurations. Comparisons with Dirac–Fock calculations of the wavelengths are presented.
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Wavelengths are in angstroms; intensities are visually estimated from plate blackening. The symbol bl indicates a blend of unresolved lines.
These wavelengths are calculated from the observed levels.
Wavelengths in parentheses were derived from C − O data plots.
This line is blended with a strong Ga xix transition.
These lines were reported in Ref. 1 but did not appear on our plates.
These lines were reported in Ref. 2.
Table 2
Spectra of the Magnesium Isoelectronic Sequence for Se xxiii to Sr xxviia
Wavelengths are in angstroms. Intensities are visually estimated from plate blackening.
Wavelengths in parentheses are taken from the table of fitted values (Table 5 below). They were not observed in our spectra.
Table 4
Contributions (in inverse centimeters) to Resonance Line Transition Energies in Magnesiumlike Copper and Molybdenum
Cu xviii
Mo xxxi
Transition
Coulomb energy
288871
431807
525651
870122
Magnetic energy
915
409
4513
1548
Retardation energy
−230
−224
−933
−929
Higher-order retardation
−3
−22
−20
−202
Self-energy
−1978
−1932
−7301
−6861
Self-energy screening
883
822
2287
2006
Vacuum polarization of order
α(Zα)
92
96
527
549
α(Zα)3
−1
−1
−8
−8
α2(Zα)
1
1
4
4
Total theoretical energy
288550
430956
524721
866229
Experimental energy
289400
426987
525028
862076
Experimental uncertainty
4
9
14
37
Table 5
Measured and Fitted Values of Wavelengths (in angstroms) for Transitions That Persist Throughout the Range Z = 29–42a
Z
Observed
Fitted
Observed
Fitted
Observed
Fitted
Observed
Fitted
Observed
Fitted
Observed
Fitted
29
234.199
234.199
345.542
345.541
234.610
234.627
249.467
249.468
196.379
196.380
204.072
204.068
30
220.570
220.568
326.411
326.412
218.817
218.812
234.365
234.370
186.343
186.339
193.380
193.380
31
208.072
208.077
309.101
204.325
204.326
220.578
220.572
177.218
177.221
183.651
183.653
32
196.573
196.572
293.362
191.003
207.910
207.906
168.897
168.897
174.754
174.755
33
185.929
185.926
278.994
278.992
178.720
178.706
196.232
196.229
161.262
161.260
166.571
166.576
34
176.037
176.035
265.822
265.824
167.321
167.323
185.423
185.428
154.219
154.223
159.031
159.024
35
166.805
166.811
253.710
253.715
156.761
175.403
175.406
147.710
147.712
152.025
152.023
36
158.183
158.181
242.550
242.548
146.942
166.085
166.083
141.673
141.664
145.500
145.508
37
150.083
232.220
137.800
157.391
136.028
139.423
38
142.465
222.642
129.280
149.275
130.758
133.717
39
135.285
135.283
213.744
213.740
121.337
141.689
141.689
125.815
125.816
128.377
128.349
40
128.496
128.499
205.447
205.447
113.931
134.597
121.167
123.285
123.280
41
122.081
122.080
197.705
197.706
107.035
127.976
116.784
116.783
118.479
118.474
42
115.999
115.999
190.466
190.466
100.629
100.630
121.819
112.639
112.639
113.895
113.901
47
89.909
160.332
76.724
100.187
94.820
93.511
Extrapolations to silver are given with an estimated uncertainty of ±0.05 Å.
Table 6
Energy Levels (in inverse centimeters) of Copper to Krypton in the Mg i Isoelectronic Sequence
Wavelengths are in angstroms; intensities are visually estimated from plate blackening. The symbol bl indicates a blend of unresolved lines.
These wavelengths are calculated from the observed levels.
Wavelengths in parentheses were derived from C − O data plots.
This line is blended with a strong Ga xix transition.
These lines were reported in Ref. 1 but did not appear on our plates.
These lines were reported in Ref. 2.
Table 2
Spectra of the Magnesium Isoelectronic Sequence for Se xxiii to Sr xxviia
Wavelengths are in angstroms. Intensities are visually estimated from plate blackening.
Wavelengths in parentheses are taken from the table of fitted values (Table 5 below). They were not observed in our spectra.
Table 4
Contributions (in inverse centimeters) to Resonance Line Transition Energies in Magnesiumlike Copper and Molybdenum
Cu xviii
Mo xxxi
Transition
Coulomb energy
288871
431807
525651
870122
Magnetic energy
915
409
4513
1548
Retardation energy
−230
−224
−933
−929
Higher-order retardation
−3
−22
−20
−202
Self-energy
−1978
−1932
−7301
−6861
Self-energy screening
883
822
2287
2006
Vacuum polarization of order
α(Zα)
92
96
527
549
α(Zα)3
−1
−1
−8
−8
α2(Zα)
1
1
4
4
Total theoretical energy
288550
430956
524721
866229
Experimental energy
289400
426987
525028
862076
Experimental uncertainty
4
9
14
37
Table 5
Measured and Fitted Values of Wavelengths (in angstroms) for Transitions That Persist Throughout the Range Z = 29–42a
Z
Observed
Fitted
Observed
Fitted
Observed
Fitted
Observed
Fitted
Observed
Fitted
Observed
Fitted
29
234.199
234.199
345.542
345.541
234.610
234.627
249.467
249.468
196.379
196.380
204.072
204.068
30
220.570
220.568
326.411
326.412
218.817
218.812
234.365
234.370
186.343
186.339
193.380
193.380
31
208.072
208.077
309.101
204.325
204.326
220.578
220.572
177.218
177.221
183.651
183.653
32
196.573
196.572
293.362
191.003
207.910
207.906
168.897
168.897
174.754
174.755
33
185.929
185.926
278.994
278.992
178.720
178.706
196.232
196.229
161.262
161.260
166.571
166.576
34
176.037
176.035
265.822
265.824
167.321
167.323
185.423
185.428
154.219
154.223
159.031
159.024
35
166.805
166.811
253.710
253.715
156.761
175.403
175.406
147.710
147.712
152.025
152.023
36
158.183
158.181
242.550
242.548
146.942
166.085
166.083
141.673
141.664
145.500
145.508
37
150.083
232.220
137.800
157.391
136.028
139.423
38
142.465
222.642
129.280
149.275
130.758
133.717
39
135.285
135.283
213.744
213.740
121.337
141.689
141.689
125.815
125.816
128.377
128.349
40
128.496
128.499
205.447
205.447
113.931
134.597
121.167
123.285
123.280
41
122.081
122.080
197.705
197.706
107.035
127.976
116.784
116.783
118.479
118.474
42
115.999
115.999
190.466
190.466
100.629
100.630
121.819
112.639
112.639
113.895
113.901
47
89.909
160.332
76.724
100.187
94.820
93.511
Extrapolations to silver are given with an estimated uncertainty of ±0.05 Å.
Table 6
Energy Levels (in inverse centimeters) of Copper to Krypton in the Mg i Isoelectronic Sequence