Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Platinum (Z=78)
  190Pt   192Pt   193Pt   194Pt   195Pt   196Pt   197Pt   198Pt
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
195Pt 196Pt




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.0644 ± 19--
0.0860 ± 200*--

(Version 0.0 corresponds to Bao et al.)
Comment
New rec. value is from KoG13. MACS for kT=40-100 keV extrapolated with normalized energy dependence (f(norm= 1.10)) from NON-SMOKER RaT99. Uncertainty is 3.0 % KoG13.
Last review: April 2014
List of all available values
originalrenorm.yeartypeCommentRef
644 ± 19
2013cLinac, TOF, Au: Sat.KoG13
860 ± 200
1999sBMO97,Bee99
780
1971sAGM71
279
2005tMOST 2005Gor05
502
2002tMOST 2002Gor02
523
2000tNON-SMOKERRaT99
1364
1981tHar81
1040
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
sSemiempirical estimates given in the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
2148 ± 65
1497 ± 45
1273 ± 38
967 ± 29
810 ± 24
713 ± 21
644 ± 19
553 ± 17
487 ± 15
435 ± 13
358 ± 11
302 ± 9
Xfactor1.001.001.001.000.980.940.890.740.590.460.290.19
SEF1.001.001.001.001.001.001.001.011.021.041.111.18
Rate
1.27
1.12
1.07
0.99
0.96
0.95
0.94
0.94
0.93
0.93
0.94
0.94

MACS:
Reference: KoG13,RaT99
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: 2013

X-factor:
Reference: Rau12
Year: 2012

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

Rate:
Reaction rate NA<σv> given in 108 cm3/mole/s, including SEF
Chart of nuclei
up
left
195Hg
10.53 h
β+
196Hg
0.15
204 mb
197Hg
2.67 d
β+
198Hg
9.97
173 mb
199Hg
16.87
374 mb
194Au
1.58 d
β+
195Au
186.11 d
β+
196Au
6.17 d
β+
197Au
100
582 mb
198Au
2.70 d
840 mb, β-
193Pt
50.01 a
1123 mb, β+
194Pt
32.967
365 mb
195Pt
33.832
860 mb
196Pt
25.242
183 mb
197Pt
19.89 h
β-
192Ir
73.83 d
2080 mb, β-
193Ir
62.7
994 mb
194Ir
19.28 h
β-
195Ir
2.50 h
β-
196Ir
52.00 s
β-
191Os
15.40 d
1290 mb, β-
192Os
40.93
155 mb
193Os
1.25 d
β-
194Os
6.00 a
β-
195Os
9.00 m
β-
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Style: (S, M, L, XL or Alberto)


Isotope: Platinum