WWW Table of Radioactive Isotopes
 
 
 
38K
1919

Half life: 7.636 m 18  
Jp:3+
Sn (keV): 12073.8 8
Sp (keV): 5142.6 8
Prod. mode: Charged particle reaction
Photon reaction
Fast neutron activation
 
ENSDF citation:NP A521,1 (1990)
Literature cut-off date: 1-Jun-1990
Author(s): P.M. Endt
References since cut-off: 38K decay from 1990-98 (NSR)
 
Decay properties:
 
ModeBranching (%)Q-value (keV)   References        
e+b+1005913.1 6 76Ma14  86BrZQ  90En08 
 
Most Recent ENSDF Data (12/2002)
 
Mode  Data set nameDisplay data
e+b+38K EC DECAY (7.636 M)
Tables:  
ENSDF data:
Java applets:


	
TORI Data (1999)

Gammas from 38K (7.636 m 18)


Eg (keV)     Ig (%)    Decay mode

1769.13  0.0094 13  e+b+ 
2167.405  99.858 13  e+b+ 
3936.43  0.142 11  e+b+ 


	

	
X-rays from 38K (7.636 m 18)
E (keV)    I (%)    Assignment

0.251   5.7E-05 17   Ar Lb1
0.310   1.5E-05 5   Ar Lb4
0.310   2.4E-05 8   Ar Lb3
2.880   1.91E-09 20   Ar Ka3
2.955   0.0178 19   Ar Ka2
2.957   0.036 4   Ar Ka1
3.190   0.00145 15   Ar Kb3
3.190   0.0029 3   Ar Kb1

	

	
Betas from 38K (7.636 m 18)
Eb endpoint (keV)    Ib (%)    Decay mode

954.45  0.133 11 b+ 
1080.88  0.009 b+ 
1976.45  0.0177 14 e 
2102.88  0.0008 e 
2723.63  99.333 12 b+ 
3745.63  0.5163 1 e 

	

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

Sort alphas by:   Ea,Ia   Ia,Ea


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