Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Bromium (Z=35)
  79Br   80Br   81Br   82Br
Go to isotope
Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
82Br 83Br




Cross sections do not include stellar enhancement factors!
* only theoretical data available
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.0608 ± 125*--

(Version 0.0 corresponds to Bao et al.)
Comment
New dataset. No direct experimental value available, the rec. value is the theoretical prediction from tendl15 with a 25% uncertainty.
Last review: December 2016
List of all available values
originalrenorm.yeartypeCommentRef
608
2015tTENDL-2015 using the TALYS codetendl15
391
2005tJEFF-3.0Ajeff30A
435
2000tNON-SMOKERRaT99


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:
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
1627
-
1099
880
753
669
608 ± 125
524
467
425
365
323
SEF1.001.001.001.000.990.990.990.980.970.960.930.90
Rate
9.68
-
9.24
9.04
8.91
8.82
8.74
8.62
8.51
8.39
8.10
7.75

MACS:
Reference: tendl15
Procedure: 't' (The MACS from kT=5 keV to 100 keV are obtained from theoretical calculations with corresponding uncertainties between 25 and 50% in most cases.)
Year: 2015

X-factor:

SEF (Stellar enhancement factor):
Reference: RaT99
Year: 2000
Comment:

Rate:
Reaction rate NA<σv> given in 107 cm3/mole/s, including SEF
Chart of nuclei
up
left
82Rb
1.27 m
β+
83Rb
86.20 d
β+
84Rb
33.10 d
β+
85Rb
72.17
234 mb
86Rb
18.64 d
202 mb, β-
81Kr
229.02 ka
607 mb, β+
82Kr
11.58
90 mb
83Kr
11.49
243 mb
84Kr
57
38 mb
85Kr
10.72 a
55 mb, β-
80Br
17.68 m
β-
81Br
49.31
239 mb
82Br
1.47 d
β-
83Br
2.40 h
β-
84Br
31.80 m
β-
79Se
294.99 ka
263 mb, β-
80Se
49.61
42 mb
81Se
18.45 m
β-
82Se
8.73
9 mb
83Se
22.30 m
β-
78As
1.51 h
β-
79As
9.01 m
β-
80As
15.20 s
β-
81As
33.30 s
β-
82As
19.10 s
β-
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Style: (S, M, L, XL or Alberto)


Isotope: Bromium