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

Go to isotope

Total MACS at 30keV:

1064

±

45

mb

Cross sections do not include stellar enhancement factors!

Version	Total MACS [mb]	Partial to gs [mb]	Partial to isomer [mb]
1.0	1064 ± 45	-	-
0.0	1084 ± 51	-	-

(Version 0.0 corresponds to Bao et al.)

New rec. value is spectrum-averaged value from BSA01 recalculated with the normalized energy-dependencies from endfb71 and jendl40 (f=0.5509). Uncertainty is 4.2 % as in BSA01 (for the spectrum-averaged value).
Last review: November 2013

original	renorm.	year	type	Comment	Ref
1064 ± 45		1996,2013	c	VdG, Act., 1/v(kT), Au:RaK88; norm. en.dep. from endfb71, jendl40	Bes96, BSA01
1084 ± 51		1996	c	VdG, Act., 1/v(kT), Au:RaK88	Bes96, BSA01
714 ± 61	709	1985	c	VdG, Act., 1/v(kT), Au:Mac82e	BWM85
1928		2011	e	ENDF/B-VII.1	endfb71
1924		2011	e	JENDL-4.0	jendl40
1928		2004	e	JEFF-3.1	jeff31
1928		2002	e	JENDL-3.3	jendl33
750		1971	s		AGM71
949		2005	t	MOST 2005	Gor05
1506		2002	t	MOST 2002	Gor02
814		2000	t	NON-SMOKER	RaT99
1122		1981	t		Har81
1000		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:

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	2743	-	1853	1486	1286	1157	1064 ± 45	935	846	779	683	616
Xfactor	1.00	1.00	1.00	0.99	0.94	0.85	0.75	0.57	0.45	0.37	0.27	0.21
SEF	1.00	1.00	1.00	1.00	1.02	1.05	1.08	1.16	1.22	1.26	1.33	1.39
Rate	1.63	-	1.55	1.53	1.55	1.61	1.68	1.82	1.93	2.02	2.15	2.26

MACS:
Reference: BSA01,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 N_A<σv> given in 10⁸ cm³/mole/s, including SEF

	164Yb 1.26 h β+ 165Yb 9.90 m β+ 166Yb 2.36 d β+ 167Yb 17.50 m β+ 168Yb 0.13 1214 mb 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

Style: (S, M, L, XL or Alberto)