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Available isotopes for Selenium (Z=34)
Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
80Se 81Se
Cross sections do not include stellar enhancement factors! History
(Version 0.0 corresponds to Bao et al.) Comment
New rec. value and MACS vs. kT table is average from recent evaluations (tendl15,endfb71,jendl40) which fits measurement of IKK11. Uncertainty is 4.7% from IKK11 plus deviation between the evaluations. No values shown for Se-80 in the paper, only available as private communication to EXFOR. There is reasonable agreement with the older data of WBK86b. Isomeric ratio at kT= 30 keV is IR= 0.217.
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: tendl15,endfb71,jendl40 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 107 cm3/mole/s, including SEF Chart of nuclei
Isotope: Selenium
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