Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Scandium (Z=21)
  45Sc   46Sc   47Sc   48Sc   49Sc
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
45Sc 46Sc




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.061.5 ± 2.2--
0.069 ± 5--

(Version 0.0 corresponds to Bao et al.)
Comment
New rec. value is from HP05 using energy dependence from endfb71. Value in v1.0 renormalized by f= 1.0785 (632 mb/586 mb) due to corrected Gold cross section from RaK88 for activations.
Last review: May 2016
List of all available values
originalrenorm.yeartypeCommentRef
57 ± 2
61.5 ± 2.22005,2014cVdG, Act., Au:RaK88 corrected by 632/586= 1.0785;HP05
69 ± 5
1977rLinac, TOF, 6Li, Au:Sat., k=1.0737; Recalcul. including data of MDH81KAM77a
83.7 ± 5.9
1977c,2Linac, TOF, 6Li, Au:Sat., k=1.0737 KAM77a
63.9
2015eTENDL-2015 using the TALYS codetendl15
64.6
2014eJEFF-3.2jeff32
67.9
2011eENDF/B-VII.1endfb71
65.6
2011eJENDL-4.0jendl40
65.5
2005eJEFF-3.0/Ajeff30A
223
2005tMOST 2005Gor05
270
2002tMOST 2002Gor02
60
2000tNON-SMOKERRaT99
52
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:
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
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
171.5
-
121.9
94.9
78.3
69.0
61.5 ± 2.2
51.8
44.2
38.8
32.4
27.0
Xfactor0.970.940.910.870.840.820.810.790.780.770.770.76
SEF0.990.970.960.940.940.930.930.920.920.920.910.90
Rate
1.01
-
0.99
0.93
0.88
0.86
0.84
0.81
0.77
0.74
0.71
0.65

MACS:
Reference: HP05
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: 2005,2014

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
45V
547.00 ms
β+
46V
423.00 ms
β+
47V
32.60 m
β+
48V
15.97 d
β+
49V
329.05 d
β+
44Ti
59.99 a
β+
45Ti
3.08 h
β+
46Ti
8.25
26.8 mb
47Ti
7.44
64.4 mb
48Ti
73.72
31.8 mb
43Sc
3.89 h
β+
44Sc
3.97 h
β+
45Sc
100
69 mb
46Sc
83.79 d
β-
47Sc
3.35 d
β-
42Ca
0.647
15.6 mb
43Ca
0.135
51 mb
44Ca
2.09
9.4 mb
45Ca
162.62 d
17.5 mb, β-
46Ca
0.004
5.3 mb
41K
6.7302
22 mb
42K
12.32 h
β-
43K
22.30 h
β-
44K
22.13 m
β-
45K
17.30 m
β-
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Style: (S, M, L, XL or Alberto)


Isotope: Scandium