Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Gadolinium (Z=64)
  152Gd   153Gd   154Gd   155Gd   156Gd   157Gd   158Gd   160Gd
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
153Gd 154Gd




Cross sections do not include stellar enhancement factors!
* only theoretical data available
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.04550 ± 700*--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
3128
2000tRaT99
2760
1976tHWF76
5212
2002tMOST 2002Gor02
4924
2005tMOST 2005Gor05


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:
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
16290
9075
7078
5922
5131
4550 ± 700
3736
3188
2789
2241
1879
SEF1.001.001.011.021.021.031.031.031.021.021.01
Rate
9.66
7.63
7.33
7.14
6.96
6.78
6.45
6.14
5.87
5.42
5.06

MACS:
Reference:
Procedure: 't' (The MACS from kT=5 keV to 100 keV are obtained from theoretical calculations with corresponding uncertainties between 25 and 50% in most cases.)
Year: 2000

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

Rate:
Reaction rate NA<σv> given in 108 cm3/mole/s, including SEF
Isotopic mass chain
Isotopic Mass Chain
Chart of nuclei
up
left
153Dy
6.40 h
β+
154Dy
3.00 Ma
α
155Dy
9.90 h
β+
156Dy
0.06%
1607 mb
157Dy
8.14 h
β+
152Tb
17.50 h
β+
153Tb
2.34 d
β+
154Tb
21.50 h
β+
155Tb
5.32 d
β+
156Tb
5.35 d
β+
151Gd
124.00 d
β+
152Gd
0.2%
1049 mb
153Gd
240.41 d
4550 mb, β+
154Gd
2.18%
1028 mb
155Gd
14.8%
2648 mb
150Eu
36.89 a
β+
151Eu
47.81%
3775 mb
152Eu
13.51 a
7600 mb, β+
153Eu
52.19%
2780 mb
154Eu
8.59 a
4420 mb, β-
149Sm
13.82%
1820 mb
150Sm
7.38%
422 mb
151Sm
90.00 a
2710 mb, β-
152Sm
26.75%
473 mb
153Sm
1.93 d
1095 mb, β-
right
down
Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Gadolinium