Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
[Standards]   [Logbook]   [FAQ]   [Links]   [Contact]
p-process
Available isotopes for Gadolinium (Z=64)
  152Gd   153Gd   154Gd   155Gd   156Gd   157Gd   158Gd   160Gd
Go to isotope
Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
160Gd 161Gd




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.0154 ± 20--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
200 ± 13
1992cVdG, TOF,6Li, 10B+Au:B-VBKP92
144 ± 14
1421984cVdG, Act., 1/v(kT), Au:657mb(25keV)160Gd(n,gamma)161Gd beta decay of 161TbBKY84
192 ± 19
1781978bVdG, TOF, 10B:Mag75, Au:628mb(kT=30keV)KYP78
290 ± 41
23keV
2181973cSb-Be, Act., 1/v(E), 127I:836mb(23keV)SSR73
15 ± 7
25keV
121972cSb-Be, Act., 1/v(E), 127I:832mb(25keV)TRK72
100 ± 30
1971eAGM71
171.3
2006eendfb7
230.4
2004ejeff31
164.5
2002ejendl33
167
2000tRaT99
265
1981tHar81
171
1976tHWF76
207
2002tMOST 2002Gor02
174
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:
cDirectly quoted from the reference itself
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
Energy5keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
546
310
243
203
175
154 ± 20
126
107
93
80
66
SEF1.001.001.021.051.091.131.211.291.371.511.64
Rate
3.24
2.61
2.54
2.52
2.52
2.53
2.56
2.59
2.61
2.86
2.86

MACS:
Reference: BKP92,KYP78
Procedure: 'e' (The Maxwellian-averaged cross sections (MACS) from kT=5 keV to 100 keV are obtained from experimental data; the relative uncertainties are similar to those quoted for the 30 keV data.)
Year: 1992

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

Rate:
Reaction rate NA<σv> given in 107 cm3/mole/s, including SEF
Isotopic mass chain
Isotopic Mass Chain
Chart of nuclei
up
left
160Dy
2.34%
890 mb
161Dy
18.91%
1964 mb
162Dy
25.51%
446 mb
163Dy
24.9%
1112 mb
164Dy
28.18%
212 mb
159Tb
100%
1580 mb
160Tb
72.30 d
3240 mb, β-
161Tb
6.91 d
β-
162Tb
7.60 m
β-
163Tb
19.50 m
β-
158Gd
24.84%
324 mb
159Gd
18.48 h
β-
160Gd
21.86%
154 mb
161Gd
3.66 m
β-
162Gd
8.40 m
β-
157Eu
15.18 h
β-
158Eu
45.90 m
β-
159Eu
18.10 m
β-
160Eu
38.00 s
β-
161Eu
26.00 s
β-
156Sm
9.40 h
β-
157Sm
8.03 m
β-
158Sm
5.30 m
β-
159Sm
11.37 s
β-
160Sm
9.60 s
β-
right
down
Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Gadolinium