Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Chromium (Z=24)
  50Cr   51Cr   52Cr   53Cr   54Cr
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
51Cr 52Cr




Cross sections do not include stellar enhancement factors!
* only theoretical data available
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.084 ± 21*--
0.087 ± 16*--

(Version 0.0 corresponds to Bao et al.)
Comment
No exp. data available. New rec. value is from TENDL-2015. Assuming 25% uncertainty.
Last review: August 2014
List of all available values
originalrenorm.yeartypeCommentRef
84.3
2015tTENDL-2015 using the TALYS codetendl15
146
2005tMOST 2005Gor05
161
2002tMOST 2002Gor02
86
2000tNON-SMOKERRaT99
63
1978tWFH78


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
479
-
221
148
115
96
84 ± 21
69
60
54
45
39
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
2.86
-
1.87
1.53
1.37
1.28
1.23
1.17
1.13
1.12
1.07
1.04

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: 2016

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
51Fe
305.00 ms
β+
52Fe
8.28 h
β+
53Fe
8.51 m
β+
54Fe
5.845
27.6 mb
55Fe
2.74 a
75 mb, β+
50Mn
283.00 ms
β+
51Mn
46.20 m
β+
52Mn
5.59 d
β+
53Mn
3.74 Ma
β+
54Mn
312.15 d
β+
49Cr
42.30 m
β+
50Cr
4.345
49 mb
51Cr
27.70 d
87 mb, β+
52Cr
83.789
8.8 mb
53Cr
9.501
58 mb
48V
15.97 d
β+
49V
329.05 d
β+
50V
0.25
50 mb
51V
99.75
38 mb
52V
3.74 m
β-
47Ti
7.44
64.4 mb
48Ti
73.72
31.8 mb
49Ti
5.41
22.1 mb
50Ti
5.18
3.6 mb
51Ti
5.76 m
β-
right
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Style: (S, M, L, XL or Alberto)


Isotope: Chromium