Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
[Standards]   [Logbook]   [FAQ]   [Links]   [Contact]
p-process
Available isotopes for Dysprosium (Z=66)
  156Dy   158Dy   160Dy   161Dy   162Dy   163Dy   164Dy
Go to isotope
Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
162Dy 163Dy




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.0446 ± 4--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
446.0 ± 3.7
1999cVdG, TOF, Au:RaK88,Mac82eVWA99
427 ± 21
1992cVdG, TOF, Au+Ag+Nd+etc.:Sat.BKP92
476 ± 48
4411978bVdG, TOF, 10B:Mag75, Au:628mb(kT=30keV)KYP78
470 ± 50
1971eAGM71
455.2
2006eendfb7
407.0
2004ejeff31
359
2000tRaT99
420
1981tHar81
398
1976tHWF76
556
2002tMOST 2002Gor02
451
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
bCalculated from smooth cross sections with model fit: ln(sigma) = a + a1 ln(E) + a2 ln^2(E)
eEvaluated value taken directly from the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
1129
796
641
553
492
446 ± 4
379
332
297
250
219
SEF1.001.001.021.061.121.171.261.331.391.491.58
Rate
6.70
6.69
6.72
6.98
7.30
7.60
8.03
8.30
8.49
8.85
9.16

MACS:
Reference: VWA99
Procedure: 'e' (The Maxwellian-averaged cross sections (MACS) from kT=5 keV to 100 keV are obtained from experimental data; the relative uncertainties are similar to those quoted for the 30 keV data.)
Year: 1999

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

Rate:
Reaction rate NA<σv> given in 107 cm3/mole/s, including SEF
Isotopic mass chain
Isotopic Mass Chain
Chart of nuclei
up
left
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-
158Gd
24.84%
324 mb
159Gd
18.48 h
β-
160Gd
21.86%
154 mb
161Gd
3.66 m
β-
162Gd
8.40 m
β-
right
down
Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Dysprosium