209PO A DECAY 
Parent state: G.S.
Half life: 102 Y(5)
Q(gs): 4979.2(14) keV
Branch ratio:     0.9955( 1)
 image 

Alpha ray: for absolute intensity multiply by 0.9955(1)
   Energy(keV)     Intensity(rel) Hindrance
      4885( 2)      19.8(SY)         5(SY)
      4883( 2)      79.6(SY)       1.2(SY)
      4622( 5)     0.553( 6)      3.97(21)
      4310(15)   0.00015( 4)       102(32)
      4110(15)   0.00056( 4)      0.85(16)

Gamma ray: for absolute intensity multiply by 1.00452
   Energy(keV)    Intensity(rel)
     260.5( 1)     0.254( 3)
     262.8( 1)     0.085( 2)
F.G. KONDEV, Nuclear Data Sheet 101, 521 (2004)

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