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Wednesday, November 23, 2011




WWW Table of Radioactive Isotopes
 

137Cs
5582

Half life: 30.07 y 3  
Jp:7/2+
Sn (keV): 8278.3 19
Sp (keV): 7416 7
Prod. mode: Fission product
Fast neutron activation
Thermal neutron activation
ENSDF citation:NDS 72,355 (1994)
Literature cut-off date: 1-Oct-1993
Author(s): J.K. Tuli
References since cut-off:137Cs decay from 1993-98 (NSR)
Decay properties:
ModeBranching (%)Q-value (keV)  
b-1001175.63 17
Data sets:
Mode  Data set nameDisplay data
b-137CS B- DECAY
Tables:  
ENSDF data:
Java applets:

	
Gammas from 137Cs (30.07 y 3)

Eg (keV)    Ig (%)    Decay mode

283.53 4 0.00058 8 b- 
661.657 3 85.1 2 b- 

	
	
X-rays from 137Cs (30.07 y 3)

E (keV)   I (%)    Assignment

3.954  0.0143 19  Ba Ll
4.331  0.0064 7  Ba Lh
4.451  0.040 4  Ba La2
4.466  0.36 4  Ba La1
4.827  0.226 23  Ba Lb1
4.852  0.023 5  Ba Lb4
4.927  0.039 8  Ba Lb3
4.994  0.0030 3  Ba Lb6
5.156  0.074 8  Ba Lb2
5.531  0.033 3  Ba Lg1
5.797  0.0065 14  Ba Lg2
5.809  0.0093 19  Ba Lg3
31.452  0.000263 8  Ba Ka3
31.817  2.04 5  Ba Ka2
32.194  3.76 8  Ba Ka1
36.304  0.352 8  Ba Kb3
36.378  0.680 15  Ba Kb1
36.652  0.0079 3  Ba Kb5
37.255  0.215 5  Ba Kb2
37.349  0.0481 20  Ba Kb4
	
	
Betas from 137Cs (30.07 y 3)

Eb endpoint (keV)   Ib (%)    Decay mode

513.97 94.4 2b- 
892.22 0.00058 8b- 
1175.63 5.6 2b- 
	

Sort gammas by:   Eg,Ig   Ig,Eg   Decay mode,Eg Sort alphas by:   Ea,Ia   Ia,Ea


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