248 Dr. L. Vegard on the X-Ray Spectra 



comparison it would hardly be possible to decide which curve 

 and which assumption is the right one. 



Fi«r. 1. 



30 



t 



20 



-30 



HQ 



50 



I Momentum preserved (g f » 3, a - /) (Debye) 

 % _ „ _ _„_ (q = 3, £ 2 = 7) (Vejard) 



IE Energy 



20 30 hQ 



b. The L„-line. 



eo 



§ 6. The L* line is produced by recombination between a 

 system with quant-number 3 to one with quant-number^ 2. 

 We shall first suppose that there is only one ring with 



