Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Strontium (Z=38)
  84Sr   86Sr   87Sr   88Sr   89Sr
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
86Sr 87Sr




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.064 ± 3--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
70 ± 4
1991cLinac, TOF,6Li, Au:YoA85BBB91
63.9 ± 2.6
1989cLinac, TOF, 6Li, Au:Sat.Mac89
74 ± 5
711985cVdG, TOF, Au:B-VWaB85
70 ± 8
1982cLinac, TOF, 6Li+235U, Au:Sat.HAM82
109 ± 30
931973cSb-Be, Act., 1/v(E), 127I:832mb(24keV)MSR73
75 ± 15
1967cVdG, TOF, 181Ta:762mbMaG67b
74 ± 7
1971eAGM71
61.59
2006eendfb7
57.24
2004ejeff31
68.40
2002ejendl33
200
2000tRaT99
57
1981tHar81
87
1976tHWF76
56.9
2002tMOST 2002Gor02
51.0
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:
cDirectly quoted from the reference itself
eEvaluated value taken directly from the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
211
134
100
86
71
64 ± 3
53
46
41
34
29
SEF1.001.001.001.001.001.001.001.001.001.001.00
Rate
1.25
1.13
1.03
1.02
0.94
0.93
0.89
0.87
0.84
0.81
0.77

MACS:
Reference: BBB91,Mac89
Procedure: 'e' (The Maxwellian-averaged cross sections (MACS) from kT=5 keV to 100 keV are obtained from experimental data; the relative uncertainties are similar to those quoted for the 30 keV data.)
Year: 1991

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
86Zr
16.50 h
β+
87Zr
1.68 h
β+
88Zr
83.40 d
β+
89Zr
3.27 d
β+
90Zr
51.45%
19.4 mb
85Y
2.68 h
β+
86Y
14.74 h
β+
87Y
3.33 d
β+
88Y
106.62 d
β+
89Y
100%
19 mb
84Sr
0.56%
368 mb
85Sr
64.84 d
β+
86Sr
9.86%
64 mb
87Sr
7%
92 mb
88Sr
82.58%
6.2 mb
83Rb
86.20 d
β+
84Rb
33.10 d
β+
85Rb
72.17%
234 mb
86Rb
18.64 d
202 mb, β-
87Rb
49.69x109 y
15.7 mb, β-
82Kr
11.58%
90 mb
83Kr
11.49%
243 mb
84Kr
57%
38 mb
85Kr
10.72 a
55 mb, β-
86Kr
17.3%
3.4 mb
right
down
Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Strontium