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)
92Zr 93Zr




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.037.8 ± 3.0--
0.230.1 ± 1.7--
0.033 ± 4--

(Version 0.0 corresponds to Bao et al.)
Comment
Recommended MACS is from TOF measurement of GTa10. Uncertainty up to kT= 25 keV and at 100 keV is from covariance data of endfb71. Between 30 keV and 100 keV the uncertainty is interpolated from the exp. uncertainty.
Last review: December 2016
List of all available values
originalrenorm.yeartypeCommentRef
37.8 ± 3.0
2010cTOF, Pb Spall., Au: Sat.GTa10
29 ± 2
2006cTOF, Pb Spall., Au: Sat.GTa06
34.9 ± 2.6
E(n,av.)= 30 (5) keV
2005cPelletron, TOF, Au:ENDF/B-VI and MaG67bOIO05
50 ± 6
1978c,2Linac, TOF, 6Li, Au:Sat., k=0.9833MAM78a
33 ± 4
1976c,2Linac, TOF, 6Li, Au:Sat., k=0.9833BMA76
34 ± 6
1967cVdG, TOF, 181Ta:762mbMaG67b
45.4
2015eTENDL-2015 using the TALYS codetendl15
45.4
2014eJEFF-3.2 using calculations from TENDL-2012jeff32
45.5 ± 5.0
2011eENDF/B-VII.1 plus covariance dataendfb71
40.5
2011eJENDL-4.0jendl40
45.7
2006eENDF/B-VII.0endfb7
45.7
2004eJEFF-3.1jeff31
45.7
2002eJENDL-3.3jendl33
34 ± 6
1971eAGM71
25.5
2005tMOST 2005Gor05
29.8
2002tMOST 2002Gor02
69.0
2000tNON-SMOKERRaT99
51
1981tHar81
47
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
2Including k from Ref. ABM82, where k is a correction factor which has been applied to the originally reported cross section
eEvaluated value taken directly from the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
131.3 ± 10.4
-
80.6 ± 6.6
58.9 ± 5.1
48.1 ± 4.6
41.8 ± 3.6
37.8 ± 3.0
33.2 ± 3.0
30.6 ± 3.1
28.9 ± 3.3
26.9 ± 3.7
25.7 ± 4.1
Xfactor1.001.001.001.001.001.001.001.001.001.001.001.00
SEF1.001.001.001.001.001.001.001.001.001.001.001.00
Rate
7.81
-
6.78
6.07
5.72
5.56
5.50
5.58
5.75
5.95
6.40
6.83

MACS:
Reference: GTa10
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: 2010

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
Style: (S, M, L, XL or Alberto)


Isotope: Zirconium