Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Zirconium (Z=40)
  90Zr   91Zr   92Zr   93Zr   94Zr   95Zr   96Zr
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
93Zr 94Zr




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.096 ± 9--
0.095 ± 10--

(Version 0.0 corresponds to Bao et al.)
Comment
Recommended value is from GTa13. MACS vs. kT table is average of recent evaluations (tendl15,endfb71,jendl40) normalized to the experimental value. Uncertainty is interpolated between covariance data of endfb71 and the experimental uncertainty at kT=30 keV.
Last review: December 2016
List of all available values
originalrenorm.yeartypeCommentRef
96 ± 9
2013cTOF, Pb Spall., Au: Sat.; E(n)>8 keV: jendl40GTa13
95 ± 10
1985cLinac, TOF, 6Li, Au:Sat.Mac85b
90.1
2015eTENDL-2015 using the TALYS codetendl15
100.7
2014eJEFF-3.2 using calculations from TENDL-2012jeff32
101 ± 23
2011eENDF/B-VII.1 incl. covariancesendfb71
99.1
2011eJENDL-4.0jendl40
108.0
2004eJEFF-3.1jeff31
99.5
2002eJENDL-3.3jendl33
177
1981eKNM81
67.8
2005tMOST 2005Gor05
58.6
2002tMOST 2002Gor02
187.8
2000tNON-SMOKERRaT99
266
1981tHar81
81
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
367 ± 49
-
222 ± 28
163 ± 19
131 ± 14
110 ± 11
96 ± 9
77 ± 9
66 ± 9
58 ± 9
48 ± 10
42 ± 10
Xfactor1.001.001.001.001.001.001.001.001.001.000.990.98
SEF1.001.001.001.001.001.001.001.001.000.990.980.97
Rate
2.18
-
1.87
1.68
1.56
1.46
1.40
1.29
1.24
1.19
1.12
1.09

MACS:
Reference: GTa13,tendl15,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: 2016

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
93Mo
4.00 ka
β+
94Mo
9.25
102 mb
95Mo
15.92
292 mb
96Mo
16.68
112 mb
97Mo
9.55
339 mb
92Nb
34.70 Ma
β+
93Nb
100
266 mb
94Nb
20.30 ka
482 mb, β-
95Nb
34.99 d
310 mb, β-
96Nb
23.35 h
β-
91Zr
11.22
60 mb
92Zr
17.15
33 mb
93Zr
1.53 Ma
95 mb, β-
94Zr
17.38
26 mb
95Zr
64.03 d
79 mb, β-
90Y
2.67 d
β-
91Y
58.51 d
β-
92Y
3.54 h
β-
93Y
10.18 h
β-
94Y
18.70 m
β-
89Sr
50.57 d
19 mb, β-
90Sr
28.90 a
β-
91Sr
9.63 h
β-
92Sr
2.66 h
β-
93Sr
7.42 m
β-
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Isotope: Zirconium