Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Holmium (Z=67)
  163Ho   165Ho
Go to isotope
Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
163Ho 164Ho




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.02125 ± 95--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
2125 ± 95
1996cVdG, Act., 1/v(kT), Au:RaK88JaK96b
1967
2000tRaT99
2264
1981tHar81
2880
1976tHWF76
2513
2002tMOST 2002Gor02
2156
2005tMOST 2005Gor05


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
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
5806
3385
2872
2579
2303
2125 ± 95
1868
1690
1558
1370
1237
SEF1.001.001.001.001.001.000.990.990.990.970.95
Rate
3.44
2.84
2.95
3.06
3.05
3.08
3.12
3.14
3.16
3.16
3.12

MACS:
Reference: RaT99,JaK96b
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: 1996

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

Rate:
Reaction rate NA<σv> given in 108 cm3/mole/s, including SEF
Isotopic mass chain
Isotopic Mass Chain
Chart of nuclei
up
left
163Tm
1.81 h
β+
164Tm
2.00 m
β+
165Tm
1.25 d
β+
166Tm
7.70 h
β+
167Tm
9.25 d
β+
162Er
0.139%
1624 mb
163Er
1.25 h
β+
164Er
1.601%
1084 mb
165Er
10.36 h
β+
166Er
33.503%
563 mb
161Ho
2.48 h
β+
162Ho
15.00 m
β+
163Ho
4.57 ka
2125 mb, β+
164Ho
29.00 m
β+
165Ho
100%
1280 mb
160Dy
2.34%
890 mb
161Dy
18.91%
1964 mb
162Dy
25.51%
446 mb
163Dy
24.9%
1112 mb
164Dy
28.18%
212 mb
159Tb
100%
1580 mb
160Tb
72.30 d
3240 mb, β-
161Tb
6.91 d
β-
162Tb
7.60 m
β-
163Tb
19.50 m
β-
right
down
Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Holmium