Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Ruthenium (Z=44)
  96Ru   98Ru   99Ru   100Ru   101Ru   102Ru   103Ru   104Ru
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
98Ru 99Ru




Cross sections do not include stellar enhancement factors!
* only theoretical data available
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.0173 ± 36*--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
300
1971sAGM71
237.3
2006eendfb7
125.1
2004ejeff31
237.3
2002ejendl33
225
2000tRaT99
223
1981tHar81
142
1976tHWF76
366
2002tMOST 2002Gor02
355
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
eEvaluated value taken directly from the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
461
331
265
223
194
173 ± 36
144
126
113
97
87
SEF1.001.001.001.001.001.001.001.001.001.001.00
Rate
2.74
2.78
2.73
2.65
2.58
2.52
2.42
2.37
2.33
2.31
2.32

MACS:
Reference:
Procedure: 't' (The MACS from kT=5 keV to 100 keV are obtained from theoretical calculations with corresponding uncertainties between 25 and 50% in most cases.)
Year: 2000

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
98Pd
17.70 m
β+
99Pd
21.40 m
β+
100Pd
3.63 d
β+
101Pd
8.47 h
β+
102Pd
1.02%
369 mb
97Rh
30.70 m
β+
98Rh
8.72 m
β+
99Rh
16.10 d
β+
100Rh
20.80 h
β+
101Rh
3.30 a
β+
96Ru
5.54%
238 mb
97Ru
2.79 d
β+
98Ru
1.87%
173 mb
99Ru
12.76%
631 mb
100Ru
12.6%
206 mb
95Tc
20.00 h
β+
96Tc
4.28 d
β+
97Tc
4.21 Ma
β+
98Tc
4.20 Ma
β-
99Tc
211.11 ka
781 mb, β-
94Mo
9.25%
102 mb
95Mo
15.92%
292 mb
96Mo
16.68%
112 mb
97Mo
9.55%
339 mb
98Mo
24.13%
99 mb
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Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Ruthenium