Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Titanium (Z=22)
  44Ti   45Ti   46Ti   47Ti   48Ti   49Ti   50Ti
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
46Ti 47Ti




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.025.7 ± 3.3--
0.026.8 ± 3.2--

(Version 0.0 corresponds to Bao et al.)
Comment
New rec. value is average from eval. databases (endfb71, jendl40,tend15). Uncertainty of 12% taken from ABM77 plus deviation between evaluations..
Last review: May 2016
List of all available values
originalrenorm.yeartypeCommentRef
26.8 ± 3.2
1977rLinac, TOF, 6Li, Au:Sat., k=0.9833; Recalcul. including data of MDH81ABM77
26.5 ± 3.2
1977c,2Linac, TOF, 6Li, Au:Sat., k=0.9833ABM77
26.0
2015eTENDL-2015 using the TALYS codetendl15
23.9
2014eJEFF-3.2; different thermal xsjeff32
25.5
2011eENDF/B-VII.1endfb71
25.5
2011eJENDL-4.0jendl40
20.4
2006eENDF/B-VII.0endfb7
20.8
2005eJEFF-3.0/Ajeff30A
20.4
2002eJENDL-3.3jendl33
34
1971eAGM71
61.7
2005tMOST 2005Gor05
76.2
2002tMOST 2002Gor02
35.0
2000tNON-SMOKERRaT99
20
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:
rRecalculated for kT = 30keV with the code described in Ref. 2 after renormalizing the original data to updated standard cross sections
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
28.2 ± 3.8
-
32.2 ± 4.7
30.2 ± 4.3
28.4 ± 3.9
27.0 ± 3.6
25.7 ± 3.3
23.3 ± 3.0
21.1 ± 2.7
19.2 ± 2.6
16.2 ± 2.5
14.1 ± 2.4
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
1.69
-
2.72
3.13
3.40
3.61
3.76
3.94
3.99
3.98
3.87
3.77

MACS:
Reference: ABM77, endfb71,jendl40,tend15
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: 1977,2016

X-factor:
Reference: Rau12
Year: 2012

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

Rate:
Reaction rate NA<σv> given in 106 cm3/mole/s, including SEF
Chart of nuclei
up
left
46Cr
260.00 ms
β+
47Cr
500.00 ms
β+
48Cr
21.56 h
β+
49Cr
42.30 m
β+
50Cr
4.345
49 mb
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
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Style: (S, M, L, XL or Alberto)


Isotope: Titanium