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

Data for Yb Isotopes (Z=70)
IsotopeAbundanceSigma(old) Sigma(new)Data Intensity Balances Energy Fit
168Yb0.13 1%2300 170 b 1640 170 b ENSDFBudapest ENSDFBudapest ENSDFBudapest
ReferencesComments: 2893 b (De Corte), 1140 160 b (to 24)
Final adopted data , Intensity balance , Energy/Intensity Fit
170Yb3.04 16%9.9 18 b * 18 3 b ENSDFBudapest ENSDFBudapest ENSDFBudapest
ReferencesComments: lower energy gammas calculated. * Updated (2003)
Final adopted data , Intensity balance , Energy/Intensity Fit
171Yb14.28 57%58 4 b * 50 7 b ENSDFBudapest ENSDFBudapest ENSDFBudapest
ReferencesComments: normalized to 965 (Budapest). * Updated (2003)
Final adopted data , Intensity balance , Energy/Intensity Fit
172Yb21.83 67%1300 80 mb * 920 100 mb ENSDFBudapest ENSDFBudapest ENSDFBudapest
ReferencesComments: normalized to 399 (Budapest). * Updated (2003)
Final adopted data , Intensity balance , Energy/Intensity Fit
173Yb16.13 27%15.5 15 b * 25 3 b ENSDFBudapest ENSDFBudapest ENSDFBudapest
ReferencesComments: no match to Budapest. * Updated (2003)
Final adopted data , Intensity balance , Energy/Intensity Fit
174Yb31.83 92%63.2 15 b * 53 5 b ENSDFBudapest ENSDFBudapest ENSDFBudapest
ReferencesComments: 63.4 11 b (De Corte), 131 6 b 1997Ka47. * Updated (2003)
Final adopted data , Intensity balance , Energy/Intensity Fit
176Yb12.76 41%2850 50 mb 380 150 mb ENSDFBudapest ENSDFBudapest ENSDFBudapest
ReferencesComments: 3080 (De Corte); 300 30 mb (to 331)
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
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Fax: 510-486-5757