| s-process | p-process |
Available isotopes for Strontium (Z=38)
Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
87Sr 
88Sr
88Sr
| Total MACS at 30keV: | 93.8 | ± | 3.8 | mb |
Cross sections do not include stellar enhancement factors!
History
| Version | Total MACS [mb] | Partial to gs [mb] | Partial to isomer [mb] |
|---|---|---|---|
| 1.0 | 93.8 ± 3.8 | - | - |
| 0.0 | 92 ± 4 | - | - |
(Version 0.0 corresponds to Bao et al.)
Comment
Rec. value is weighted average of BBB91 and Mac89. Used normalized energy dependence from recent libraries (tendl15, jeff32, endfb71,jendl40). Uncertainties are derived from the standard deviation between the libraries, and interpolated between 5 and 30 keV and 30 and 100 keV. Note that there is a discrepancy between these evaluations and all the TOF measurements. More investigation needed.
Last review: December 2016
Last review: December 2016
List of all available values
| original | renorm. | year | type | Comment | Ref |
97 ± 5 | 1991 | c | Linac, TOF,6Li, Au:YoA85 | BBB91 | |
92.1 ± 3.7 | 1989 | c | Linac, TOF, 6Li, Au:Sat. | Mac89 | |
100 ± 7 | 102 ± 7 | 1985 | c | VdG, TOF, Au:endfb52 norm. by 613/601= 1.02 | WaB85 |
74 ± 10 | 1982 | c | Linac, TOF, 6Li+235U, Au:Sat. | HAM82 | |
108 ± 20 | 1967 | c | VdG, TOF, 181Ta:762mb | MaG67b | |
74.5 | 2015 | e | TENDL-2015 using the TALYS code | tendl15 | |
83.1 | 2014 | e | JEFF-3.2 using calculations from TENDL-2012 | jeff32 | |
80.7 | 2011 | e | ENDF/B-VII.1 | endfb71 | |
84.8 | 2011 | e | JENDL-4.0 | jendl40 | |
119.8 | 2004 | e | JEFF-3.1 | jeff31 | |
80.7 | 2002 | e | JENDL-3.3 | jendl33 | |
109 ± 9 | 1971 | e | AGM71 | ||
72.2 | 2005 | t | MOST 2005 | Gor05 | |
73.3 | 2002 | t | MOST 2002 | Gor02 | |
330 | 2000 | t | NON-SMOKER | RaT99 | |
90 | 1981 | t | Har81 | ||
222 | 1976 | t | HWF76 |
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 |
| 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 | 300.1 ± 11.1 | - | 192.0 ± 7.3 | 147.9 ± 5.7 | 122.6 ± 4.8 | 105.8 ± 4.3 | 93.8 ± 3.8 | 77.6 ± 3.5 | 67.1 ± 3.4 | 59.7 ± 3.3 | 49.9 ± 3.2 | 43.7 ± 3.2 |
| 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 | 1.78 | - | 1.61 | 1.52 | 1.46 | 1.41 | 1.37 | 1.31 | 1.26 | 1.23 | 1.19 | 1.16 |
MACS:
Reference: Mac89,BBB91,tendl15,jeff32,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: Strontium