226RA A DECAY 
Parent state: G.S.
Half life: 1600 Y(7)
Q(gs): 4870.62(25) keV
Branch ratio:        1.0
image 

Alpha ray: 
   Energy(keV)     Intensity(rel) Hindrance
   4784.34(25)     93.84(11)       1.0    
      4601( 1)      6.16( 3)     0.857( 6)
      4340( 1)    0.0065( 3)      10.3( 5)
      4191( 2)    0.0010( 1)       4.4( 5)
      4160( 2)   0.00027( 5)       8.6(16)

Gamma ray: 
   Energy(keV)    Intensity(rel)
      34.8(16)        -     
   186.211(13)      3.64( 4)
    187.10(20)        -     
    262.27( 5)    0.0050( 5)
    414.60( 5)   0.00030    
    449.37(10)   0.00019    
    600.66( 5)   0.00049
Sukhjeet Singh, A. K. Jain, J, Nuclear Data Sheet 112,2851 (2011)

Please e-mail to jhchang@kaeri.re.kr for any comment. Thank you.