IAEA Coordinated Research Project for
Development of a Database for Prompt Gamma-Ray Neutron Activation Analysis

Data for Er Isotopes (Z=68)
IsotopeAbundanceSigma(old) Sigma(new)Data Intensity Balances Energy Fit
162Er0.14 1% 19 2 b Budapest
ReferencesComments:
Final adopted data , Intensity balance
164Er1.61 3%13 2 b
ReferencesComments:
166Er33.61 35%16.9 16 b * 20.8 14 b ENSDFBudapest ENSDFBudapest ENSDFBudapest
ReferencesComments: 15 2 b (to 208, Mughabghab), 15.1 6 b (to 208). * Updated (2003)
IT Decay (2.27 s)
Final adopted data , Intensity balance , Energy/Intensity Fit
167Er22.93 17%649 8 b * 688 30 b ENSDFBudapest ENSDFBudapest ENSDFBudapest
ReferencesComments: * Updated (2003)
Final adopted data , Intensity balance , Energy/Intensity Fit
168Er26.78 26%2740 80 mb 17400 2400 mb ENSDFBudapest ENSDFBudapest ENSDFBudapest
ReferencesComments:
Final adopted data , Intensity balance , Energy/Intensity Fit
170Er14.93 27%8850 300 mb * 5500 1000 mb ENSDFBudapest ENSDFBudapest ENSDFBudapest
ReferencesComments: 8870 210 mb (De Corte). * Updated (2003)
Final adopted data , Intensity balance , Energy/Intensity Fit

Comparison of ENSDF and Budapest Gamma-Ray Data

Final Comparison of Adopted Data, Budapest, and Lone.

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For more information contact

Richard B. Firestone, e-mail: rbf@lbl.gov
 Ernest O. Lawrence Berkeley National Laboratory
MailStop 88R0192
1 Cyclotron Road
Berkeley, CA 94720
Phone: 510-486-7646
Fax: 510-486-5757