¹⁶²Er   ¹⁶⁴Er   ¹⁶⁶Er   ¹⁶⁷Er   ¹⁶⁸Er   ¹⁶⁹Er   ¹⁷⁰Er

Go to isotope

Total MACS at 30keV:

653

±

114*

mb

Cross sections do not include stellar enhancement factors!
* only theoretical data available

Version	Total MACS [mb]	Partial to gs [mb]	Partial to isomer [mb]
0.0	653 ± 114*	-	-

(Version 0.0 corresponds to Bao et al.)

Last review: 1999

original	renorm.	year	type	Comment	Ref
481		2000	t		RaT99
609		1976	t		HWF76
493		2002	t	MOST 2002	Gor02
366		2005	t	MOST 2005	Gor05

Original:MACS [<σ v>/v_T] (mb) for kT=30 keV, based on the published cross sections except where indicated otherwise.
Renorm:MACS [<σ v>/v_T] (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:

t	Theoretical value

Energy	5keV	10keV	15keV	20keV	25keV	30keV	40keV	50keV	60keV	80keV	100keV
MACS	1926	1244	984	835	731	653 ± 114	539	459	401	320	269
SEF	1.00	1.00	1.00	1.00	1.00	1.00	1.01	1.02	1.04	1.06	1.09
Rate	1.14	1.04	1.01	0.99	0.97	0.95	0.91	0.88	0.85	0.81	0.78

MACS:
Reference:
Procedure: 't' (The MACS from kT=5 keV to 100 keV are obtained from theoretical calculations with corresponding uncertainties between 25 and 50% in most cases.)
Year: 2000

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

Rate:
Reaction rate N_A<σv> given in 10⁸ cm³/mole/s, including SEF

	169Yb 32.02 d β+ 170Yb 3.04 768 mb 171Yb 14.28 1210 mb 172Yb 21.83 341 mb 173Yb 16.13 754 mb 168Tm 93.10 d β+ 169Tm 100 1129 mb 170Tm 128.59 d 1870 mb, β- 171Tm 1.92 a 486 mb, β- 172Tm 2.65 d β- 167Er 22.869 1425 mb 168Er 26.978 338 mb 169Er 9.39 d 653 mb, β- 170Er 14.91 170 mb 171Er 7.52 h β- 166Ho 1.12 d β- 167Ho 3.00 h β- 168Ho 2.99 m β- 169Ho 4.72 m β- 170Ho 2.76 m β- 165Dy 2.33 h β- 166Dy 3.40 d β- 167Dy 6.20 m β- 168Dy 8.70 m β- 169Dy 39.00 s β-

Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)