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Available isotopes for Hafnium (Z=72)
Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
179Hf 180Hf
Cross sections do not include stellar enhancement factors! History
(Version 0.0 corresponds to Bao et al.) Comment
Rec. value and MACS vs. kT table is from WVK06b. Value at kT= 5 keV extrapolated from normalized averaged value of jendl40 and endfb71 (f(norm)= 0.998). Isomeric ratio at E(n)= 75 (25) keV is IR= 0.28 (2) WVK06b but comparison of WVK06b and BeW81 at kT= 30 keV gives only IR= 0.012. Better agreement is given by comparison with value from SRS72 (IR= 0.228). Presently no recommendation possible for cross section to isomer.
Last review: In process List of all available values
Original:MACS [<σ v>/vT] (mb) for kT=30 keV, based on the published cross sections except where indicated otherwise. Renorm:MACS [<σ v>/vT] (mb) for kT=30 keV for which the reference or standard cross section was meanwhile improved. Type: The letters and numbers in the column labelled 'type' give information on how the cross section has been obtained:
MACS, SEF and Reaction Rates for different energies
MACS: Reference: Rei18 Procedure: 'd' (Renormalized 2017 based on updated Au measurement) Year: 2018 X-factor: Reference: Year: SEF (Stellar enhancement factor): Reference: Year: Comment: Rate: Reaction rate NA<σv> given in 108 cm3/mole/s, including SEF Chart of nuclei
Isotope: Hafnium
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