Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Gadolinium (Z=64)
  148Gd   150Gd   152Gd   153Gd   154Gd   155Gd   156Gd   157Gd   158Gd   159Gd   160Gd
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
158Gd 159Gd




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.0346 ± 4--
0.0324 ± 3--

(Version 0.0 corresponds to Bao et al.)
Comment
Rec. value is from WVK95. MACS value at kT= 5-10 keV was taken from normalized average of the evaluated libraries (endfb71,jendl40). Uncertainty of these values is taken from deviation of both libraries.
Last review: In process
List of all available values
originalrenorm.yeartypeCommentRef
294 ± 19
E(n)= 25-35 keV
2007cPelletron, TOF, Au:ENDF/B-VI and MaG67bCRK07
323.6 ± 2.8
346 ± 41995dVdG, TOF, Au:RaK88,Mac82eWVK95
319 ± 21
1992cVdG, TOF, Au+Ag+Nd+etc.:Sat.BKP92
221 ± 20
2181984cVdG, Act., 1/v(kT), Au:657mb(25keV)BKY84
423 ± 42
3921978bVdG, TOF, 10B:Mag75, Au:628mb(kT=30keV)KYP78
651 ± 71
E(n)= 23 (5) keV
1974cSb-Be, Act., 1/v(E), 127I:832mb(24keV)SSR74
626 ± 350
E(n)= 23 (5) keV
4921972cSb-Be, Act., 1/v(E), 127I:832mb(24keV)TRK72
523 ± 60
1968bVdG, Act., 235U:Whi65SSK68
307.1
2011eENDF/B-VII.1endfb71
319.8
2011eJENDL-4.0jendl40
295.6
2004eJEFF-3.1jeff31
307.6
2002eJENDL-3.3jendl33
540 ± 70
1971eAGM71
381
2005tMOST 2005Gor05
430
2002tMOST 2002Gor02
262
2000tNON-SMOKERRaT99
363
1981tHar81
302
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
977 ± 71
726 ± 32
638 ± 22
510 ± 11
436 ± 8
385 ± 6
346 ± 5
289 ± 4
250 ± 3
222 ± 3
185 ± 3
163 ± 4
Xfactor1.001.001.000.960.870.760.650.480.380.300.210.16
SEF1.001.001.001.011.051.091.131.221.291.361.481.58
Rate
5.80
5.45
5.36
5.31
5.41
5.56
5.69
5.89
6.04
6.19
6.49
6.85

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
158Dy
0.1
1060 mb
159Dy
144.44 d
β+
160Dy
2.34
890 mb
161Dy
18.91
1964 mb
162Dy
25.51
446 mb
157Tb
71.01 a
β+
158Tb
179.99 a
β+
159Tb
100
1580 mb
160Tb
72.30 d
3240 mb, β-
161Tb
6.91 d
β-
156Gd
20.47
615 mb
157Gd
15.65
1369 mb
158Gd
24.84
324 mb
159Gd
18.48 h
β-
160Gd
21.86
154 mb
155Eu
4.75 a
1320 mb, β-
156Eu
15.19 d
β-
157Eu
15.18 h
β-
158Eu
45.90 m
β-
159Eu
18.10 m
β-
154Sm
22.75
206 mb
155Sm
22.30 m
β-
156Sm
9.40 h
β-
157Sm
8.03 m
β-
158Sm
5.30 m
β-
right
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Style: (S, M, L, XL or Alberto)


Isotope: Gadolinium