Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Sodium (Z=11)
  23Na
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
23Na 24Na




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.02.1 ± 0.2--

(Version 0.0 corresponds to Bao et al.)
Comment
Corrected typing error in MACS vs. kT table: MACS @ 5 keV is 14 mb, not 1.4 mb.
Last review: January 20th, 2006
List of all available values
originalrenorm.yeartypeCommentRef
2.1 ± 0.2
1978rLinac, TOF, 6Li, Au:Sat. Recalcul. including data of MDH81MAM78b
1.6 ± 0.2
1976a,2VdG, TOF, 10B+6Li data at 20leqEleq60 keV from MAM78b, k=1.0360RAT76
2.7 ± 0.4
1971eAGM71
1.83
2006eendfb7
1.74
2004ejeff31
1.74
2002ejendl33
28.6
2002tMOST 2002Gor02
27.3
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:
rRecalculated for kT = 30keV with the code described in Ref. 2 after renormalizing the original data to updated standard cross sections
aCalculated from resonance parameters with the formula from Ref. 45
2Including k from Ref. ABM82, where k is a correction factor which has been applied to the originally reported cross section
eEvaluated value taken directly from the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
 14 
5.2
3.4
2.7
2.2
2.1 ± 0.2
1.7
1.5
1.4
1.3
1.2
SEF1.001.001.001.001.001.001.001.001.001.000.99
Rate
8.46
4.44
3.56
3.26
2.97
3.11
2.90
2.87
2.93
3.13
3.21

MACS:
Reference: MDH81,MAM78b
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: 1978

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 105 cm3/mole/s, including SEF
Isotopic mass chain
Isotopic Mass Chain
Chart of nuclei
up
left
23Al
470.00 ms
β+
24Al
2.05 s
β+
25Al
7.18 s
β+
26Al
717.12 ka
3.7 mb, β+
27Al
100%
3.74 mb
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-
right
down
Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Sodium