Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Cerium (Z=58)
  132Ce   133Ce   134Ce   135Ce   136Ce   137Ce   138Ce   139Ce   140Ce   141Ce   142Ce
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
142Ce 143Ce




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.029.9 ± 1.0--
0.028 ± 1--

(Version 0.0 corresponds to Bao et al.)
Comment
New rec. value is from KTS96, but extrapolation done with evaluated libraries (jendl40,endfb71) normalized to the exp. value. Uncertainty is 3.3 % from KTS96 plus deviation of both evaluations.
Last review: July 2013
List of all available values
originalrenorm.yeartypeCommentRef
29.9 ± 1.0
1996,2013cVdG, Act., 1/v(kT), Au:RaK88; en.dep. from jendl40, endfb71KTS96
28.3 ± 1.0
1996cVdG, Act., 1/v(kT), Au:RaK88KTS96
35.8 ± 2.0
E(n)= 24 keV
1990cVdG, Act., 1/v(kT), Au:655 (23) mb (24keV)XWY90
19.6 ± 1.1
18.21980cVdG, Act., 1/v(kT), Au:B-IVBeK80
19 ± 4
E(n)= 25 (5) keV
1979cF.N.B., Act., 1/v(E), 127I:832 mb (25 keV)AJB79
63 ± 10
E(n)= 23 (5) keV
1973cSb-Be, Act., 1/v(E), 127I:836 mb (23 keV)SSR73
19.93
2011eENDF/B-VII.1endfb71
19.82
2011eJENDL-4.0jendl40
46.95
2004eJEFF-3.1jeff31
19.60
2002eJENDL-3.3jendl33
360 ± 60
1971eAGM71
16.7
2005tMOST 2005Gor05
14.9
2002tMOST 2002Gor02
31
2000tNON-SMOKERRaT99
30.7
1996tKTS96
41
1981tHar81
33
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
eEvaluated value taken directly from the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
105.8 ± 8.4
78.7 ± 5.2
60.7 ± 3.3
45.1 ± 1.8
37.5 ± 1.3
32.9 ± 1.1
29.9 ± 1.0
26.1 ± 0.9
23.9 ± 0.9
22.3 ± 0.9
20.5 ± 0.8
19.4 ± 0.7
Xfactor1.001.001.001.001.001.001.001.001.001.001.000.99
SEF1.001.001.001.001.001.001.001.001.001.001.001.00
Rate
6.28
5.91
5.09
4.64
4.45
4.37
4.35
4.38
4.48
4.58
4.87
5.17

MACS:
Reference: KTS96,endfb71,jendl40
Procedure: 'e+t' (The MACS from kT=5 keV to 100 keV are derived from calculated cross sections, which are then normalized to experimental data, e.g. to the values at kT=25 keV obtained in activation measurements. In these cases the uncertainties should be linearly increased below 25 and above 30 keV to reach about 30% at the extreme kT values.)
Year: 1996,2013

X-factor:
Reference: Rau12
Year: 2012

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

Rate:
Reaction rate NA<σv> given in 106 cm3/mole/s, including SEF
Chart of nuclei
up
left
142Nd
27.2
35 mb
143Nd
12.2
245 mb
144Nd
23.8
81.3 mb
145Nd
8.3
425 mb
146Nd
17.2
91.2 mb
141Pr
100
111.4 mb
142Pr
19.12 h
415 mb, β-
143Pr
13.57 d
350 mb, β-
144Pr
17.28 m
β-
145Pr
5.98 h
β-
140Ce
88.45
11 mb
141Ce
32.51 d
76 mb, β-
142Ce
11.114
28 mb
143Ce
1.38 d
β-
144Ce
284.95 d
β-
139La
99.91
31.6 mb
140La
1.68 d
β-
141La
3.92 h
β-
142La
1.52 h
β-
143La
14.20 m
β-
138Ba
71.698
4 mb
139Ba
1.38 h
β-
140Ba
12.75 d
β-
141Ba
18.27 m
β-
142Ba
10.60 m
β-
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Style: (S, M, L, XL or Alberto)


Isotope: Cerium