Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Bismuth (Z=83)
  209Bi   210Bi
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
209Bi 210Bi




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.02.61 ± 0.412.23 ± 0.07-
0.32.56 ± 0.302.23 ± 0.07-
0.22.56 ± 0.302.32 ± 0.14-
0.02.70 ± 0.482.32 ± 0.14-

(Version 0.0 corresponds to Bao et al.)
Comment
Recommended value and new MACS vs. kT table is deduced as follows: for kT= 5 and 8 keV the values from CDP06b are used, for kT= 10-15 keV the values of MCA98 were normalized to the different energy-dependence of CDP06b. For kT= 20 to 25 keV the average of CDP06b and MCA98 was used. At kT= 30 keV the weighted average of the evaluations (endfb71,jeff32) was multiplied by 1.04 to match the experimental values of CDP06b and MCA98, above this energy the averaged values from the evaluations were used directly. The isomeric ratio at kT= 30 keV is IR= 0.157.
Last review: April 2014
List of all available values
originalrenorm.yeartypeCommentRef
2.89 ± 0.50
kT= 25 keV
2006cTOF, Pb Spall., AuCDP06b
2.70 ± 0.13
E(n)= 30 (10) keV
2004cTOF, Pelletron, Au:ENDF/B-VI and MaG67bSIK04
2.54 ± 0.48
1998cLinac, TOF, 6Li, Au+Ag:Sat.MCA98
2.70 ± 0.48
1997cLinac, TOF, 6Li, Au+Ag:Sat.MCA97b
1.70 ± 0.17
1990cVdG, TOF, Au:RaK88,Mac82eJaK90
3.12 ± 0.60
1981rquoted from BVW92MDH81
11.1 ± 1.1
1976c,1Linac, TOF, 6Li, Au:Sat., k=1.0360MaH76
3.35
2011eENDF/B-VII.1endfb71
2.94
2011eJENDL-4.0jendl40
2.85
2004eJEFF-3.1jeff31
2.83
2002eJENDL-3.3jendl33
11.0
2005tMOST 2005Gor05
8.65
2002tMOST 2002Gor02
7.6
2000tNON-SMOKERRaT99
9.2
1981tHar81
7.8
1976tHWF76
Partial cross section to 210gBi:
2.54 ± 0.14
kT= 25 keV
2.321989cVdG, Act., 1/v(kT), Au:RaK88RBK89,RAK04
2.23 ± 0.07
2007cVdG, Act., Au:RaK88SBi07


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
rRecalculated for kT = 30keV with the code described in Ref. 2 after renormalizing the original data to updated standard cross sections
1Including k from Ref. MaW81, 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
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
13.05 ± 0.67
8.62 ± 0.51
6.93 ± 0.46
4.59 ± 0.43
3.38 ± 0.42
2.87 ± 0.44
2.61 ± 0.41
2.45 ± 0.42
2.45 ± 0.45
2.50 ± 0.49
2.65 ± 0.58
2.78 ± 0.66
Xfactor1.001.001.001.001.001.001.001.001.001.001.001.00
SEF1.001.001.001.001.001.001.001.001.001.001.001.00
Rate
7.74
6.46
5.81
4.71
4.01
3.80
3.79
4.11
4.59
5.13
6.28
7.37

MACS:
Reference: MCA98, CDP06b, endfb71,jeff32
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: 2014

X-factor:
Reference: Rau12
Year: 2012

SEF (Stellar enhancement factor):
Reference: Rau09
Year: 2009
Comment:

Rate:
Reaction rate NA<σv> given in 105 cm3/mole/s, including SEF
Chart of nuclei
up
left
209At
5.41 h
β+
210At
8.10 h
β+
211At
7.21 h
β+
212At
314.00 ms
α
213At
0.00 ms
α
208Po
2.90 a
α
209Po
102.01 a
α
210Po
138.43 d
α
211Po
516.00 ms
α
212Po
45.01 s
α
207Bi
32.90 a
β+
208Bi
367.91 ka
β+
209Bi
100
2.7 mb
210Bi
5.01 d
6 mb, β-
211Bi
2.14 m
α
206Pb
24.1
14.5 mb
207Pb
22.1
9.7 mb
208Pb
52.4
0.36 mb
209Pb
3.25 h
β-
210Pb
22.20 a
β-
205Tl
70.476
54 mb
206Tl
4.20 m
β-
207Tl
4.77 m
β-
208Tl
3.05 m
β-
209Tl
2.16 m
β-
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Style: (S, M, L, XL or Alberto)


Isotope: Bismuth