Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Terbium (Z=65)
  157Tb   158Tb   159Tb   160Tb
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
159Tb 160Tb




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.01817 ± 258--
0.01580 ± 150--

(Version 0.0 corresponds to Bao et al.)
Comment
New rec. value is average of evaluated libraries (endfb71,jendl40). Uncertainty is deviation of both libraries. There is a discrepancy between the existing measurements, an independent activation measurement would be desirable.
Last review: September 2013
List of all available values
originalrenorm.yeartypeCommentRef
1471 ± 66
1992cVdG, TOF, Au+Ag+Nd+etc.:Sat.BKP92
1800 ± 100
1978cLinac, TOF, 6Li+10B:INK79MMH78
2949 ± 442
E(n)= 23 (5) keV
1974cSb-Be, Act., 1/v(E), 127I:832 (26) mb (24 keV)SSR74
1850 ± 250
17651972cVdG, TOF, In:740 (70) mbLDM72
2080
2011eENDF/B-VII.1endfb71
1558
2011eJENDL-4.0jendl40
1801
2004eJEFF-3.1jeff31
2081
2002eJENDL-3.3jendl33
2200 ± 200
1971eAGM71
1116
2005tMOST 2005Gor05
2949
2002tMOST 2002Gor02
1427
2000tNON-SMOKERRaT99
1975
1981tHar81
1610
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
eEvaluated value taken directly from the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
4875 ± 851
-
3323 ± 573
2664 ± 431
2276 ± 348
2012 ± 295
1817 ± 258
1544 ± 211
1358 ± 181
1220 ± 159
1029 ± 128
898 ± 106
Xfactor1.001.000.990.960.910.850.780.670.580.510.400.32
SEF1.001.001.001.011.021.021.031.041.051.071.081.08
Rate
2.89
-
2.79
2.76
2.74
2.73
2.72
2.70
2.69
2.67
2.63
2.58

MACS:
Reference: endfb71,jendl40
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: 2013

X-factor:
Reference: Rau12
Year: 2012

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

Rate:
Reaction rate NA<σv> given in 108 cm3/mole/s, including SEF
Chart of nuclei
up
left
159Ho
33.05 m
β+
160Ho
25.60 m
β+
161Ho
2.48 h
β+
162Ho
15.00 m
β+
163Ho
4.57 ka
2125 mb, β+
158Dy
0.1
1060 mb
159Dy
144.44 d
β+
160Dy
2.34
890 mb
161Dy
18.91
1964 mb
162Dy
25.51
446 mb
157Tb
71.01 a
β+
158Tb
179.99 a
β+
159Tb
100
1580 mb
160Tb
72.30 d
3240 mb, β-
161Tb
6.91 d
β-
156Gd
20.47
615 mb
157Gd
15.65
1369 mb
158Gd
24.84
324 mb
159Gd
18.48 h
β-
160Gd
21.86
154 mb
155Eu
4.75 a
1320 mb, β-
156Eu
15.19 d
β-
157Eu
15.18 h
β-
158Eu
45.90 m
β-
159Eu
18.10 m
β-
right
down
Style: (S, M, L, XL or Alberto)


Isotope: Terbium