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Journal of Analytical Science and Technology

Table 1 The data for neutron-capture reactions of the selected nuclides in this study

From: Isotopic variations of Sm, Gd, Er and Yb found in planetary materials caused by neutron-capture reactions in nature

 

σth (barn)

RI (barn)

Emax (eV)

σepi (barn)a

149Sm

4.01 × 104

3.38 × 103

600

4.77 × 102

157Gd

2.53 × 105

7.59 × 102

2000

1.19 × 102

167Er

6.49 × 102

2.98 × 103

2000

3.59 × 102

168Yb

2.30 × 103

2.13 × 104

200

3.56 × 103

169Tm

1.05 × 102

1.62 × 103

2000

1.95 × 102

  1. Individual data are selected from Evaluated Nuclear Data File (ENDF/B-VIII.0) and Japanese Evaluated Nuclear Data Library (JENDL-5) compiled by Brookhaven National Laboratory
  2. aThe epithermal cross section (σepi) is calculated from the Eq. (2) (see text) with the parameters RI and εmax in the table
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