Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
[Standards]   [Logbook]   [FAQ]   [Links]   [Contact]
p-process
Available isotopes for Samarium (Z=62)
  144Sm   146Sm   147Sm   148Sm   149Sm   150Sm   151Sm   152Sm   153Sm   154Sm
Go to isotope
Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
149Sm 150Sm




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.01939 ± 25--
0.01820 ± 17--

(Version 0.0 corresponds to Bao et al.)
Comment
New rec. value is average from recent evaluations (endfb71,jendl40). Uncertainty is deviation between both evaluations plus uncertainty as in WGV93.
Last review: In process
List of all available values
originalrenorm.yeartypeCommentRef
1692 ± 73
E(n)= 30 (5) keV
1999cPelletron, TOF, Au:ENDF/B-VI and MaG67bDIM99
1819.9 ± 17.2
1939 ± 251993dVdG, TOF, Au:RaK88,Mac82eWGV93
1511 ± 70
14421986cVdG, TOF, Au:B-VWKW86
2706 ± 240
1981bLinac, TOF, 6Li+10B, Sat.Miz81
2729 ± 273
25291977bVdG,TOF,10B:Mag75, Au:628mb(kT=30keV)KYM77
2660 ± 266
1975bLinac, TOF, 10B, Au+Ag+etc:Sat.SKH75
1620 ± 280
1967cVdG, TOF, 181Ta:762mbMaG67a
1765 ± 385
2011eENDF/B-VII.1 incl. covariancesendfb71
1817
2011eJENDL-4.0jendl40
1863
2004eJEFF-3.1jeff31
1829
2002eJENDL-3.3jendl33
1645
1981eKNM81
1620 ± 280
1971eAGM71
1274
2005tMOST 2005Gor05
2169
2002tMOST 2002Gor02
1254
2000tNON-SMOKERRaT99
1270
1995tTDK95
1472
1986tWKW86
2083
1981tHar81
1630
1976tHWF76


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:
cDirectly quoted from the reference itself
dRenormalized 2017 based on updated Au measurement
bCalculated from smooth cross sections with model fit: ln(sigma) = a + a1 ln(E) + a2 ln^2(E)
eEvaluated value taken directly from the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
7154 ± 514
5039 ± 232
4267 ± 158
3161 ± 80
2567 ± 51
2194 ± 37
1939 ± 30
1612 ± 22
1413 ± 19
1278 ± 19
1106 ± 24
997 ± 31
Xfactor1.000.970.960.910.860.830.800.770.740.720.680.65
SEF0.990.980.970.940.930.920.920.910.910.910.900.88
Rate
4.22
3.70
3.47
3.07
2.84
2.69
2.59
2.47
2.41
2.38
2.35
2.34

MACS:
Reference: Rei18
Procedure: 'd' (Renormalized 2017 based on updated Au measurement)
Year: 2018

X-factor:
Reference: Rau12
Year: 2012

SEF (Stellar enhancement factor):
Reference: Rau09
Year: 2009
Comment:

Rate:
Reaction rate NA<σv> given in 108 cm3/mole/s, including SEF
Chart of nuclei


Isotope: Samarium