

Precision-Measurements in the 



X-Ray Spectra. 6 





Table X. 







Table XI. 







Si. 







Al. 





Line. 



X^ X.TJ. 



V 



E' 



Line. 



\g X.U. 



V 



E' 



a x .. 



.... 7109-17 



128-18 



«i ■■ 



.... 8319-40 



10953 



a' .. 



.... 7083 



128 65 



a/ .. 



... 8285-60 



109-98 



«3 •• 



.... 7063-82 



12902 



«3 •■ 



... 8264-60 



110-26 



«4 ■ 



.... 7053-72 



129-18 



"i ■■ 



... 8253-00 



110-41 



a- .. 



... 7014 



129-92 



a 5 .. 



... 8205-80 



111-05 



a a •• 



... 7003 



13012 



a (; •• 



. . . 8189-20 



11127 



ft •• 



... 6793 



134-15 



ft - 



... 8025 



113-55 



F ■ 



... 6744-20 



135-11 



ft'.. 



... visible, not measurable 



ft •• 



... 6739-33 



Table XII 

 Mg. 



135-21 



ft •• 



... 794050 



Table XIII 



Na. 



114-76 



Jine. 



lg X.U. 



v . 

 E" 



Line. 



X^ X.U. 



V 



E" 



«i ■• 



... 9867-75 



9234 



a 5 .. 



... 11883-6 



76-68 



a x ' .. 



... 9826-(5) 



92-73 



a x ' ... 



... 11835 



76-99 



a : . '.. 



... 979940 



9299 



«., ... 



... 11802-4 



, 77-21 



a.i ■■ 



... 9786-20 



93-11 



«a •■ 



... 11781-4 



77-34 



rt 5 •• 



... 9730 



93-65 



a- ... 



. . . visible, not measurable. 



a G .. 



... 9712 



93-83 



o ( . ... 



,, ,, 



i» 



A .. 



... 9647 



94-46 



ft -. 



... 11591 



78-62 



ft •■ 



... visible, not measurable. 









ft •• 



... 9534-50 



95 57 









some new faint lines (a/, a 5 , a 6 , /3', and /3 3 ). The mutual 

 position of all the lines can be seen from the figure. The lines 

 cl x and u 2 appear here unseparated as one line, in the tables 

 indicated by a x . The line /3 3 , however, is to be looked upon 

 as the continuation of (3' in the region Ni — Ti. 

 Diagram of a K-Spectrum. 



Judging from this investigation, a complete K-spectrum 

 would have the appearance which is shown in the figure. 

 It is, however, to be noticed that with no element do all 

 the lines occur. 



Physical Laboratory, 

 University of Lund, 

 June 1920. 



