Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Neon (Z=10)
  20Ne   21Ne   22Ne
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
22Ne 23Ne




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.30.058 ± 0.004--
0.00.059 ± 0.006--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: July 18th, 2005
List of all available values
originalrenorm.yeartypeCommentRef
0.058 ± 0.004
2002cVdG, Fast Cycling Act., Au:RaK88BSR02a
0.0590 ± 0.0057
1991cVdG, Act., 1/v(kT), Au:RaK88BRV91
0.045--0.24
1988cLinac, TOF, 6Li, Au:Sat.WiM88
0.9 ± 0.7
1983cVdG, TOF, Au:B-VAlK83
2.83
2002tMOST 2002Gor02
2.59
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
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
 0.133 
 0.106 
 0.095 
0.078 
0.068 
 0.062 
0.058 ± 0.004
 0.056 
 0.061 
0.069 
 0.085 
0.095 
SEF1.001.01.001.001.001.001.001.001.001.001.001.00
Rate
8.04
8.11
8.12
8.17
8.22
8.38
8.59
9.58
11.66
14.45
20.56
25.69

MACS:
Reference: BSR02a
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: 2002

SEF (Stellar enhancement factor):
Reference: Rau09
Year: 2009
Comment:
. Please note: SEF for this element have not been calculated but are expected to be close to 1.
Rate:
Reaction rate NA<σv> given in 103 cm3/mole/s, including SEF
Isotopic mass chain
Isotopic Mass Chain
Chart of nuclei
up
left
22Mg
3.88 s
β+
23Mg
11.32 s
β+
24Mg
78.99
3.3 mb
25Mg
10
6.4 mb
26Mg
11.01
0.126 mb
21Na
22.49 s
β+
22Na
2.60 a
β+
23Na
100
2.1 mb
24Na
14.95 h
β-
25Na
59.01 s
β-
20Ne
90.48
0.119 mb
21Ne
0.27
1.5 mb
22Ne
9.25
0.059 mb
23Ne
37.24 s
β-
24Ne
3.38 m
β-
19F
100
5.8 mb
20F
11.07 s
β-
21F
4.16 s
β-
22F
4.23 s
β-
23F
2.23 s
β-
18O
0.2
0.00886 mb
19O
26.88 s
β-
20O
13.51 s
β-
21O
3.42 s
β-
22O
2.25 s
β-
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Isotope: Neon
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