| Element | Intensity | Wavelength (nm) in vacuum |
Spectrum | Levels Odd J Even J |
|||
| ThIV | 4 | 79.753 | IV | 139 872 | 3/2 | 14 486 | 5/2 |
| ThIV | 1 | 83.555 | IV | 0 | 5/2 | 119 686 | 3/2 |
| ThIV | 30 | 84.691 | IV | 127 269 | 5/2 | 9 193 | 3/2 |
| ThIV | 1 | 85.402 | IV | 4 326 | 7/2 | 121 428 | 5/2 |
| ThIV | 30 | 88.239 | IV | 127 815 | 7/2 | 14 486 | 5/2 |
| ThIV | 12 | 88.666 | IV | 127 269 | 5/2 | 14 486 | 5/2 |
| ThIV | 100 | 156.585 | IV | 73 056 | 3/2 | 9 193 | 3/2 |
| ThIV | 70 | 168.222 | IV | 60 239 | 1/2 | 119 686 | 3/2 |
| ThIV | 30 | 168.401 | IV | 60 239 | 1/2 | 119 623 | 1/2 |
| ThIV | 150 | 170.737 | IV | 73 056 | 3/2 | 14 486 | 5/2 |
| ThIV | 200 | 195.901 | IV | 60 239 | 1/2 | 9 193 | 3/2 |
| Element | Intensity | Wavelength (nm) in air |
Spectrum | Levels Odd J Even J |
|||
| ThIV | 200 | 200.234 | IV | 73 056 | 3/2 | 23 131 | 1/2 |
| ThIV | 100 | 206.670 | IV | 73 056 | 3/2 | 121 428 | 5/2 |
| ThIV | 20 | 214.391 | IV | 73 056 | 3/2 | 119 686 | 3/2 |
| ThIV | 30 | 214.681 | IV | 73 056 | 3/2 | 119 623 | 1/2 |
| ThIV | 1 | 224.211 | IV | ||||
| ThIV | 2 | 226.126 | IV | ||||
| ThIV | 5 | 229.681 | IV | ||||
| ThIV | 100 | 269.399 | IV | 60 239 | 1/2 | 23 131 | 1/2 |
| ThIV | 2 | 493.709 | IV | 139 872 | 3/2 | 119 623 | 1/2 |
| ThIV | 4 | 495.252 | IV | 139 872 | 3/2 | 119 686 | 3/2 |
| ThIV | 3 | 542.038 | IV | 139 872 | 3/2 | 121 428 | 5/2 |
| ThIV | 2 | 671.187 | IV | 134 518 | 1/2 | 119 623 | 1/2 |
| ThIV | 3 | 674.037 | IV | 134 518 | 1/2 | 119 686 | 3/2 |
| ThIV | 50 | 690.116 | IV | 0 | 5/2 | 14 486 | 5/2 |
| ThIV | 983.8848 | IV | 4 326 | 7/2 | 14 486 | 5/2 | |
| ThIV | 1087.4573 | IV | 0 | 5/2 | 9 193 | 3/2 | |