WWW Table of Radioactive Isotopes
 
 
 
255Es
99156

Half life: 39.8 d 12  
Jp:(7/2+)
Sn (keV): 5975 12
Sp (keV): 4541 16
 
ENSDF citation:NDS 59,591 (1990)
Literature cut-off date: 30-Apr-1989
Author(s): M.R. Schmorak
References since cut-off: 255Es decay from 1989-98 (NSR)
 
Decay properties:
 
ModeBranching (%)Q-value (keV)   References        
b- 92.0 4290 10
a 8.0 46436.3 13 67Fi03  71Bb10 
SF 0.0045 3
 
Data sets:
 
Mode  Data set nameDisplay data
b-255ES B- DECAY
Tables:  
ENSDF data:
Java applets:
a255ES A DECAY
Tables:
ENSDF data:
Java applets:


	
Gammas from 255Es (39.8 d 12)
Eg (keV)     Ig (%)    Decay mode

35.7 3  a 
233.6 3  a 
269.1  a 

* Relative intensity

	

	

	
Alphas from 255Es (39.8 d 12)
Ea (keV)     Ia (%)    

6069.5  0.1(syst) 
6213  2.5 
6260  9.8 
6299.3 15  87.7 
6339   


	

Sort gammas by:   Eg,Ig   Ig,Eg   Decay mode,Eg

Sort alphas by:   Ea,Ia   Ia,Ea


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