656 BELL SYSTEM TECHNICAL JOURNAL 



Following the usual procedure, we obtain 



Here o)m is the cyclotron radian frequency. 

 As before, we have 



rpo2 



uoij^e - r) 

 whence 



We can also solve (15.9) and (15.10) for y 



Now, to the first order 



dy , dy 



y = 



MJ^e - r) 



and from (15.16) and (15.17) 



(15.14) 



T%h^V[(j^e - r) + ja(3j 





(15.17) 



-j7?rj>F[a(i/3, - r)+j/3j .^. 



