| s-process | p-process |
Available isotopes for Iron (Z=26)
Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
54Fe 
55Fe
55Fe
| Total MACS at 30keV: | 28.4 | ± | 1.2 | mb |
Cross sections do not include stellar enhancement factors!
History
| Version | Total MACS [mb] | Partial to gs [mb] | Partial to isomer [mb] |
|---|---|---|---|
| 1.0 | 28.4 ± 1.2 | - | - |
| 0.2 | 29.6 ± 1.3 | - | - |
| 0.0 | 27.6 ± 1.8 | - | - |
(Version 0.0 corresponds to Bao et al.)
Comment
Rec. value is weighted average from WBC16, GG14, BCR83, AMB77a/ AMB77b, and BSE74/BeS75. Energy dependence and uncertainties for MACS vs. kT table taken from WBC16. Note that all evaluated data seems to be based on the same data. In WBC16 a different energy dependence is found which is used here.
Last review: December 2016
Last review: December 2016
List of all available values
| original | renorm. | year | type | Comment | Ref |
26.7 ± 1.1 | 2016 | c | VdG, Act. + AMS, Au: 632(9) mb (KADoNiS) | WBC16 | |
30.8 ± 1.6 | 2014 | c | Pb Spall., TOF; Au:Sat. | GG14 | |
30.3 ± 3.0 | 32.7 ± 3.2 | 2006,2014 | c | VdG, Act. + AMS, Au:RaK88 corrected by 632/586= 1.0785; | CKD06 |
27.6 ± 1.8 | 1983 | r | Linac, TOF, 10B, 56Fe:Sat. | BCR83 | |
33.6 ± 2.7 | 1977 | c | Linac, TOF, 6Li, Au:Sat. | AMB77a,AMB77b | |
28 ± 9 | 1975 | c | VdG, TOF, Au:596mb Kom69 | BSE74,BeS75 | |
21.6 | 2015 | e | TENDL-2015 using the TALYS code | tendl15 | |
21.6 | 2014 | e | JEFF-3.2 | jeff32 | |
21.6 ± 2.7 | 2011 | e | ENDF/B-VII.1 plus cov. | endfb71 | |
21.6 | 2011 | e | JENDL-4.0 | jendl40 | |
21.6 | 2004 | e | JEFF-3.1 | jeff31 | |
34 ± 10 | 1971 | e | AGM71 | ||
54.0 | 2005 | t | MOST 2005 | Gor05 | |
56.2 | 2002 | t | MOST 2002 | Gor02 | |
46.5 | 2000 | t | NON-SMOKER | RaT99 | |
28 | 1978 | t | WFH78 |
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:
| c | Directly quoted from the reference itself |
| r | Recalculated for kT = 30keV with the code described in Ref. 2 after renormalizing the original data to updated standard cross sections |
| e | Evaluated value taken directly from the reference |
| t | Theoretical value |
MACS, SEF and Reaction Rates for different energies
| Energy | 5keV | 8keV | 10keV | 15keV | 20keV | 25keV | 30keV | 40keV | 50keV | 60keV | 80keV | 100keV |
| MACS | 108.5 ± 5.3 | - | 74.4 ± 0.3 | 52.4 ± 2.3 | 40.3 ± 1.8 | 33.1 ± 1.4 | 28.4 ± 1.2 | 22.5 ± 1.1 | 19.0 ± 1.0 | 16.7 ± 0.9 | 14.1 ± 0.7 | 12.3 ± 0.6 |
| Xfactor | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| SEF | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Rate | 6.48 | - | 6.28 | 5.42 | 4.81 | 4.42 | 4.15 | 3.80 | 3.59 | 3.45 | 3.37 | 3.28 |
MACS:
Reference: WBC16,GG14, BCR83,AMB77a/ AMB77b, BSE74/BeS75
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
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Isotope: Iron