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| Available isotopes for Erbium (Z=68) Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV) 
 169Er   170Er 
 Cross sections do not include stellar enhancement factors! * only theoretical data available History 
 (Version 0.0 corresponds to Bao et al.) Comment 
Last review: 1999 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: Procedure: 't' (The MACS from kT=5 keV to 100 keV are obtained from theoretical calculations with corresponding uncertainties between 25 and 50% in most cases.) Year: 2000 SEF (Stellar enhancement factor): Reference: Year: Comment: Rate: Reaction rate NA<σv> given in 108 cm3/mole/s, including SEF Isotopic mass chain  Chart of nuclei 
 Isotope: Erbium |