1. Yb reaction The measured resonance integral and the corresponding reference data are presented in Fig. 5. As is evident, there are large differences among previously measured data. These data vary from 30 � 3 barn (Steinnes, 1972) to 68.6 � 7.2 barn (Sims and Juhnke, 1970) and differ by approximately 128%. The result obtained in this study is consistent within a range of 7.8-11;F De Corte;3% with those reported by Karadag and Yucel,1989
2. Determination of the activation cross section of short-lived nuclear isomers for thermal neutrons;K F Alexander;Ann. Phys,1963