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   198Pt
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
192Pt 193Pt




Cross sections do not include stellar enhancement factors!
* only theoretical data available
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.0590 ± 120*--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
590 ± 120
1999sVdG, Act., 1/v(kT), Au:RaK88BMO97,Bee99
196 ± 56
1991cVdG, Act., 1/v(kT), Au:RaK88Tep91
490
1971sAGM71
518
2000tRaT99
322
1981tHar81
352
1976tHWF76
494
2002tMOST 2002Gor02
446
2005tMOST 2005Gor05


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:
sSemiempirical estimates given in the reference
cDirectly quoted from the reference itself
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
1354
941
779
689
630
590 ± 120
537
504
481
450
427
SEF1.001.001.001.001.001.001.001.011.021.051.09
Rate
8.03
7.89
8.00
8.17
8.35
8.57
9.02
9.51
10.04
11.18
12.32

MACS:
Reference: BMO97,Bee99
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: 1999

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

Rate:
Reaction rate NA<σv> given in 107 cm3/mole/s, including SEF
Isotopic mass chain
Isotopic Mass Chain
Chart of nuclei
up
left
192Hg
4.85 h
β+
193Hg
3.80 h
β+
194Hg
443.96 a
β+
195Hg
10.53 h
β+
196Hg
0.15%
204 mb
191Au
3.18 h
β+
192Au
4.94 h
β+
193Au
17.65 h
β+
194Au
1.58 d
β+
195Au
186.11 d
β+
190Pt
650.00x109 y
508 mb, α
191Pt
2.86 d
β+
192Pt
0.782%
590 mb
193Pt
50.01 a
1123 mb, β+
194Pt
32.967%
365 mb
189Ir
13.20 d
β+
190Ir
11.78 d
β+
191Ir
37.3%
1350 mb
192Ir
73.83 d
2080 mb, β-
193Ir
62.7%
994 mb
188Os
13.29%
399 mb
189Os
16.21%
1168 mb
190Os
26.36%
274 mb
191Os
15.40 d
1290 mb, β-
192Os
40.93%
155 mb
right
down
Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Platinum