Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Gallium (Z=31)
  69Ga   71Ga
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
69Ga 70Ga




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.0139 ± 6--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
146 ± 6
1391984cVdG, TOF, Au:B-VWal84
130 ± 30
1971eAGM71
119.0
2006eendfb7
120.0
2002ejendl33
150
2000tRaT99
240
1981tHar81
180
1978tWFH78
207
2002tMOST 2002Gor02
122
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
331
238
197
174
153
139 ± 6
121
113
102
87
79
SEF1.001.001.001.001.001.001.001.001.000.990.99
Rate
1.97
2.00
2.03
2.07
2.04
2.03
2.04
2.13
2.10
2.06
2.07

MACS:
Reference: Wal84
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: 1984

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
69As
15.20 m
β+
70As
52.60 m
β+
71As
2.72 d
β+
72As
1.08 d
β+
73As
80.30 d
β+
68Ge
270.95 d
β+
69Ge
1.63 d
β+
70Ge
20.37%
88 mb
71Ge
11.43 d
β+
72Ge
27.31%
73 mb
67Ga
3.26 d
β+
68Ga
1.13 h
β+
69Ga
60.108%
139 mb
70Ga
21.14 m
β-
71Ga
39.892%
123 mb
66Zn
27.9%
35 mb
67Zn
4.1%
153 mb
68Zn
18.75%
19.2 mb
69Zn
56.40 m
β-
70Zn
0.62%
21.5 mb
65Cu
30.83%
41 mb
66Cu
5.12 m
β-
67Cu
2.58 d
β-
68Cu
31.10 s
β-
69Cu
2.85 m
β-
right
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Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Gallium