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




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.0257 ± 3--
0.0241 ± 2--

(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
224 ± 10
E(n)= 30 (5) keV
1999cPelletron, TOF, Au:ENDF/B-VI and MaG67bDIM99
240.7 ± 2.2
257 ± 31993dVdG, TOF, Au:RaK88,Mac82eWGV93
277 ± 13
2641986cVdG, TOF, Au:B-VWKW86
281 ± 23
2601978cVdG, TOF, 10B:Mag75, Au:628mb(kT=30keV)KYP78
257 ± 50
1967cVdG, TOF, 181Ta:762mbMaG67a
245.1
2011eENDF/B-VII.1endfb71
236.1
2011eJENDL-4.0jendl40
330.5
2004eJEFF-3.1jeff31
244.5
2002eJENDL-3.3jendl33
235
1979eIWY79
260 ± 50
1971eAGM71
130
2005tMOST 2005Gor05
131
2002tMOST 2002Gor02
249
2000tNON-SMOKERRaT99
225
1995tTDK95
262
1986tWKW86
282
1981tHar81
288
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
eEvaluated value taken directly from the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
705 ± 50
514 ± 23
448 ± 16
355 ± 8
307 ± 6
277 ± 4
257 ± 4
231 ± 3
215 ± 3
204 ± 3
190 ± 5
182 ± 7
Xfactor1.001.001.001.001.001.001.001.001.001.000.990.97
SEF1.001.001.001.001.001.001.001.001.001.001.001.01
Rate
4.18
3.86
3.76
3.65
3.64
3.67
3.74
3.88
4.03
4.19
4.52
4.89

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 107 cm3/mole/s, including SEF
Chart of nuclei
up
left
148Gd
70.89 a
α
149Gd
9.28 d
β+
150Gd
1.79 Ma
α
151Gd
124.00 d
β+
152Gd
0.2
1049 mb
147Eu
24.10 d
β+
148Eu
54.50 d
β+
149Eu
93.10 d
β+
150Eu
36.89 a
β+
151Eu
47.81
3775 mb
146Sm
102.99 Ma
α
147Sm
106.00x109 y
973 mb, α
148Sm
11.24
241 mb
149Sm
13.82
1820 mb
150Sm
7.38
422 mb
145Pm
17.70 a
β+
146Pm
5.53 a
β+
147Pm
2.62 a
1290 mb, β-
148Pm
5.37 d
2453 mb, β-
149Pm
2.21 d
2510 mb, β-
144Nd
23.8
81.3 mb
145Nd
8.3
425 mb
146Nd
17.2
91.2 mb
147Nd
10.98 d
544 mb, β-
148Nd
5.7
147 mb
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Style: (S, M, L, XL or Alberto)


Isotope: Samarium