Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Lead (Z=82)
  204Pb   205Pb   206Pb   207Pb   208Pb   209Pb   210Pb
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
204Pb 205Pb




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.083.7 ± 3.2--
0.381.0 ± 2.3--
0.089.5 ± 5.5--

(Version 0.0 corresponds to Bao et al.)
Comment
New rec. value and MACS vs. kT table is taken from recent evaluation (jendl40) which is the only one to include the most recent measurement from CDP07a. Uncertainty taken from CDP07a.
Last review: April 2014
List of all available values
originalrenorm.yeartypeCommentRef
79 ± 3
2007cTOF, Pb Spall., AuCDP07a
89.5 ± 4.5
1984cLinac, TOF, 6Li, Au:Sat.HMH84
79.5 ± 5.0
1973c,2Linac, TOF, 6Li, Au:Sat., k=1.0737AMW73
42.6 ± 5.4
1967cVdG, TOF, 181Ta: 8100*E(n)-0.697MaG67b
72.55
2011eENDF/B-VII.1endfb71
83.69
2011eJENDL-4.0jendl40
72.55
2004eJEFF-3.1jeff31
72.02
2002eJENDL-3.3jendl33
119
2005tMOST 2005Gor05
136
2002tMOST 2002Gor02
70
2000tNON-SMOKERRaT99
78
1981tHar81
50
1976tHWF76


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
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
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
303.7 ± 9.0
200.0 ± 6.0
166.4 ± 5.0
122.1 ± 4.1
101.8 ± 3.1
90.7 ± 3.2
83.7 ± 3.2
75.6 ± 3.2
70.9 ± 3.1
67.7 ± 3.0
63.5 ± 2.9
61.0 ± 2.7
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
1.80
1.50
1.39
1.25
1.21
1.20
1.22
1.27
1.33
1.39
1.51
1.62

MACS:
Reference: jendl40,CDP07a
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 107 cm3/mole/s, including SEF
Chart of nuclei
up
left
204Po
3.53 h
β+
205Po
1.74 h
β+
206Po
8.80 d
β+
207Po
5.80 h
β+
208Po
2.90 a
α
203Bi
11.76 h
β+
204Bi
11.22 h
β+
205Bi
15.31 d
β+
206Bi
6.24 d
β+
207Bi
32.90 a
β+
202Pb
52.51 ka
β+
203Pb
2.16 d
β+
204Pb
1.4
89.5 mb
205Pb
17.30 Ma
125 mb, β+
206Pb
24.1
14.5 mb
201Tl
3.04 d
β+
202Tl
12.23 d
β+
203Tl
29.524
124 mb
204Tl
3.78 a
215 mb, β-
205Tl
70.476
54 mb
200Hg
23.1
115 mb
201Hg
13.18
264 mb
202Hg
29.86
63.2 mb
203Hg
46.60 d
98 mb, β-
204Hg
6.87
42 mb
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Isotope: Lead