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)
87Sr 88Sr




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.092 ± 4--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
97 ± 5
1991cLinac, TOF,6Li,Au:YoA85BBB91
92.1 ± 3.7
1989cLinac, TOF, 6Li, Au:Sat.Mac89
100 ± 7
951985cVdG, TOF, Au:B-VWaB85
74 ± 10
1982cLinac, TOF, 6Li+235U, Au:Sat.HAM82
108 ± 20
1967cVdG, TOF, 181Ta:762mbMaG67b
109 ± 9
1971eAGM71
80.67
2006eendfb7
119.8
2004ejeff31
80.67
2002ejendl33
286
2000tRaT99
90
1981tHar81
222
1976tHWF76
73.3
2002tMOST 2002Gor02
72.2
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
345
207
155
127
110
92 ± 4
76
65
56
45
38
SEF1.001.001.001.001.001.001.001.001.001.001.00
Rate
2.05
1.74
1.60
1.51
1.46
1.34
1.28
1.22
1.15
1.07
1.01

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
87Zr
1.68 h
β+
88Zr
83.40 d
β+
89Zr
3.27 d
β+
90Zr
51.45%
19.4 mb
91Zr
11.22%
60 mb
86Y
14.74 h
β+
87Y
3.33 d
β+
88Y
106.62 d
β+
89Y
100%
19 mb
90Y
2.67 d
β-
85Sr
64.84 d
β+
86Sr
9.86%
64 mb
87Sr
7%
92 mb
88Sr
82.58%
6.2 mb
89Sr
50.57 d
19 mb, 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-
88Rb
17.77 m
β-
83Kr
11.49%
243 mb
84Kr
57%
38 mb
85Kr
10.72 a
55 mb, β-
86Kr
17.3%
3.4 mb
87Kr
1.27 h
β-
right
down
Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Strontium