TABLE OF CONTENTS TABLE 1 gives thermal neutron capture cross sections from refs. Mughabghab et al. 1981, 1984, and 2003. Atomic abundances are taken from the latest IUPAC compilation (Rosman and Taylor 1998). The Westcott g-factors, which are a measure of the deviation of the cross section from the regular 1/ u-behavior, were calculated by Trkov (Trkov 2003) in the framework of a coordinated research project (IAEA 2003a), and will be published as part of a slow neutron capture database (IAEA 2003b). Resonance integrals are from ref. Mughabghab 2003, except for those in square brackets that are from the earlier compilation (Mughabghab et al. 1981, 1984) but have been omitted in the later reference. The notations in TABLE 1 are the following.
| Column 1: | Atomic number and element name |
| Column 2: | Isotope symbol, followed in parentheses by energy of isomeric level in keV or reaction if not (n, ?). |
| Column 3: | Cross section at 2200 m/s neutron speed (representing the most probable speed at 20 C), in barn (b) or millibarn (mb) units. 1 b=10 28 m 2. |
| Column 4: | Westcott g-factor for 300 K Maxwellian flux distribution. |
| Column 5: | Infinite dilution resonance integral, in barn (b) or millibarn (mb) units. |
| Element | Isotope | Abundance | Cross Section | g-Factor | Resonance Integral |
|---|---|---|---|---|---|
| 1 Hydrogen | 1H | 99.9885(70) | 332.6(7) mb | 0.999 | 149mb |
| 2H |
