Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Mercury (Z=80)
  196Hg   198Hg   199Hg   200Hg   201Hg   202Hg   203Hg   204Hg
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
196Hg 197Hg




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.0201 ± 11-26.3 ± 1.4
0.3204 ± 8-26.7 ± 1.3
0.0650 ± 82*- -

(Version 0.0 corresponds to Bao et al.)
Comment
Rec. value is from MDD09c. Isomeric ratio at kT= 30 keV is IR= 0.1308. Note the large discrepancy between the evaluations and the measurement.
Last review: April 2014
List of all available values
originalrenorm.yeartypeCommentRef
201 ± 11
2009cVdG, Act., Au:RaK88; en.dep. of jeff30A MDD09c
34.6
2011eENDF/B-VII.1endfb71
34.4
2011eJENDL-4.0jendl40
34.6
2004eJEFF-3.1jeff31
34.6
2002eJENDL-3.3jendl33
360
1971sAGM71
466
2005tMOST 2005Gor05
490
2002tMOST 2002Gor02
372
2000tNON-SMOKERRaT99
610
1981tHar81
992
1976tHWF76
Partial cross section to 197mHg:
26.3 ± 1.4
2009cVdG, Act., Au:RaK88MDD09c


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
sSemiempirical estimates given in the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
522
-
349
281
243
219
201 ± 11
178
163
151
135
123
Xfactor1.001.001.001.001.001.001.001.001.000.990.960.90
SEF1.001.001.001.001.001.001.001.001.001.001.011.04
Rate
3.09
-
2.93
2.89
2.88
2.90
2.92
2.98
3.06
3.11
3.25
3.39

MACS:
Reference: MDD09c,jeff30A
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: 2009

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
196Pb
37.00 m
β+
197Pb
8.10 m
β+
198Pb
2.40 h
β+
199Pb
1.50 h
β+
200Pb
21.50 h
β+
195Tl
1.16 h
β+
196Tl
1.84 h
β+
197Tl
2.84 h
β+
198Tl
5.30 h
β+
199Tl
7.42 h
β+
194Hg
443.96 a
β+
195Hg
10.53 h
β+
196Hg
0.15
204 mb
197Hg
2.67 d
β+
198Hg
9.97
173 mb
193Au
17.65 h
β+
194Au
1.58 d
β+
195Au
186.11 d
β+
196Au
6.17 d
β+
197Au
100
582 mb
192Pt
0.782
590 mb
193Pt
50.01 a
1123 mb, β+
194Pt
32.967
365 mb
195Pt
33.832
860 mb
196Pt
25.242
183 mb
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Isotope: Mercury