¹⁶²Er   ¹⁶⁴Er   ¹⁶⁶Er   ¹⁶⁷Er   ¹⁶⁸Er   ¹⁶⁹Er   ¹⁷⁰Er   ¹⁷¹Er   ¹⁷²Er

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Total MACS at 30keV:

700

±

75

mb

Cross sections do not include stellar enhancement factors!

Version	Total MACS [mb]	Partial to gs [mb]	Partial to isomer [mb]
1.0	700 ± 75	-	-
0.0	563 ± 56	-	-

(Version 0.0 corresponds to Bao et al.)

New rec. value is average of evaluated libraries (endfb71,jendl40). Uncertainty is from covariance data plus deviation between evaluations. Stellar enhancement factors corrected Rau09.
Last review: November 2013

original	renorm.	year	type	Comment	Ref
608 ± 61	563	1978	b	VdG, TOF, 10B:Mag75, Au:628 mb(kT= 30 keV)	KYP78
519 ± 156	481	1974	c	VdG, TOF, 10B:SPU71, Au:628 mb(kT= 30 keV)	SKP74a
697 ± 72		2011	e	ENDF/B-VII.1 incl. covariances	endfb71
702.3		2011	e	JENDL-4.0	jendl40
706.0		2004	e	JEFF-3.1	jeff31
706.0		2002	e	JENDL-3.3	jendl33
560		1971	s		AGM71
476		2005	t	MOST 2005	Gor05
518		2002	t	MOST 2002	Gor02
436		2000	t	NON-SMOKER	RaT99
739		1981	t		Har81
657		1976	t		HWF76

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:

b	Calculated from smooth cross sections with model fit: ln(sigma) = a + a1 ln(E) + a2 ln^2(E)
c	Directly quoted from the reference itself
e	Evaluated value taken directly from the reference
s	Semiempirical estimates given in the reference
t	Theoretical value

Energy	5keV	8keV	10keV	15keV	20keV	25keV	30keV	40keV	50keV	60keV	80keV	100keV
MACS	1638 ± 200	-	1166 ± 125	973 ± 99	855 ± 86	768 ± 79	700 ± 75	594 ± 68	517 ± 62	458 ± 58	376 ± 50	323 ± 44
Xfactor	1.00	1.00	1.00	0.96	0.86	0.75	0.64	0.47	0.37	0.30	0.21	0.16
SEF	1.00	1.00	1.00	1.02	1.06	1.12	1.17	1.26	1.32	1.38	1.47	1.55
Rate	9.72	-	9.78	10.20	10.75	11.41	11.90	12.56	12.80	12.99	13.11	13.28

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, corrected
Year: 2009
Comment:

Rate:
Reaction rate N_A<σv> given in 10⁷ cm³/mole/s, including SEF

	166Yb 2.36 d β+ 167Yb 17.50 m β+ 168Yb 0.13 1214 mb 169Yb 32.02 d β+ 170Yb 3.04 768 mb 165Tm 1.25 d β+ 166Tm 7.70 h β+ 167Tm 9.25 d β+ 168Tm 93.10 d β+ 169Tm 100 1129 mb 164Er 1.601 1084 mb 165Er 10.36 h β+ 166Er 33.503 563 mb 167Er 22.869 1425 mb 168Er 26.978 338 mb 163Ho 4.57 ka 2125 mb, β+ 164Ho 29.00 m β+ 165Ho 100 1280 mb 166Ho 1.12 d β- 167Ho 3.00 h β- 162Dy 25.51 446 mb 163Dy 24.9 1112 mb 164Dy 28.18 212 mb 165Dy 2.33 h β- 166Dy 3.40 d β-

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