New diagram lines in the L emission spectrum of thulium 69 II. Beta-gamma region
A N Nigam; K B Garg; A N Nigam; Physics Department, University of Rajasthan, Jaipur, India; K B Garg; Physics Department, University of Rajasthan, Jaipur, India
Журнал:
Journal of Physics B: Atomic and Molecular Physics
Дата:
1968-05-01
Аннотация:
Using a 40 cm curved mica crystal spectrograph of the transmission type, the beta-gamma region of the L emission spectrum of thulium has been investigated. Four new diagram lines at 1439.1, 1489.4, 1331.5 and 1341.6 X.U. have been reported for the first time. The first line corresponds to the dipole transition L<sub>III</sub>O<sub>I</sub>(β<sub>7</sub>), the next two to the quadrupole transitions L<sub>III</sub>N<sub>III</sub> and L<sub>II</sub>N<sub>III</sub>, respectively, while the last one has been assigned to the forbidden transition L<sub>II</sub>N<sub>II</sub>. The measurements on the previously known diagram lines in the region under study have been compared with those of the earlier workers.
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