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Available isotopes for Technetium (Z=43)
99Tc
Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
99Tc 100Tc
Cross sections do not include stellar enhancement factors! History
(Version 0.0 corresponds to Bao et al.) Comment
New rec. value is weighted average of two recent measurements of KLY04 and GLM00, which were complemented at higher energies with values (Hauser Feshbach calculations) from endfb71 and jendl40. The uncertainties in the MACS vs. kT tables were taken from covariance data of endfb71 and interpolated to the experimental uncertainty of 5% at kT=30 keV.
Last review: January 2017 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: GLM01,KLY04,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: 2017 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: Technetium
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