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Available isotopes for Holmium (Z=67)
Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
163Ho 164Ho
Cross sections do not include stellar enhancement factors! History
(Version 0.0 corresponds to Bao et al.) Comment
Rec. value is data from JaK96b, recalculated with a) the energy-dependence of RUSFOND-2010 (rus10) normalized by f= 1.37 and b) assuming as described in JaK96b the same energy-trend for Au-197 and Ho-163.
The ratio between the spectrum-averaged cross sections (SACSs) of Au-197 and the MACS at kT= 30 keV is r(MACS/SACS)= 0.993. This factor is multiplied with the SACS of Ho-163 to get MACS30= 2125 mb. For the energy-dependence the NON-SMOKER dependence (RaT99) is then normalized by f=1.024. The recommended value is the average from the normalized ROSFOND-data and the recalculated data from JaK96b, the uncertainty is 4.2% plus the deviation between the normalized ROSFOND and NON-SMOKER data. The isomeric ratio (m/total) is IR= 0.204 at kT= 30 keV. Last review: October 2013 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: JaK96b,RaT99,rus10 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: 2013 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: Holmium
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