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Available isotopes for Zinc (Z=30)
Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
68Zn 69Zn
Cross sections do not include stellar enhancement factors! History
(Version 0.0 corresponds to Bao et al.) Comment
New rec. value is from recent evaluations (endfb71/jendl40,tendl15) using uncertainty of 12.5% from GTH82 plus deviation between evaluations.
New rec. partial cross section was calculated with branching ratio to isomeric state of 0.0728 from endfb71. However, a normalization factor of f=2.14 (including the renormalization factor for the new 197Au cross section) was required to reproduce new data of RDH12, which hints either to an underestimation of the branching ratio by this factor or the corresponding total cross section. More investigation needed. (Note: Perfect agreement of RDH12 with an unpublished measurement of ID13b). Last review: June 2016 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: endfb71, jendl40,tendl15 Procedure: 'e+t' (The MACS from kT=5 keV to 100 keV are derived from calculated cross sections, which are then normalized to experimental data, e.g. to the values at kT=25 keV obtained in activation measurements. In these cases the uncertainties should be linearly increased below 25 and above 30 keV to reach about 30% at the extreme kT values.) Year: 2016 X-factor: Reference: Year: SEF (Stellar enhancement factor): Reference: Year: Comment: Rate: Reaction rate NA<σv> given in 106 cm3/mole/s, including SEF Chart of nuclei
Isotope: Zinc
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