⁹⁹Tc

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Total MACS at 30keV:

943

±

47

mb

Cross sections do not include stellar enhancement factors!

Version	Total MACS [mb]	Partial to gs [mb]	Partial to isomer [mb]
1.0	943 ± 47	-	-
0.2	933 ± 47	-	-
0.0	781 ± 50	-	-

(Version 0.0 corresponds to Bao et al.)

New rec. value is weighted average of two recent measurements of KLY04 and GLM00, which were complemented at higher energies with values (Hauser Feshbach calculations) from endfb71 and jendl40. The uncertainties in the MACS vs. kT tables were taken from covariance data of endfb71 and interpolated to the experimental uncertainty of 5% at kT=30 keV.
Last review: January 2017

original	renorm.	year	type	Comment	Ref
974 ± 81		2004	r	Linac, TOF; res. up to 46 keV; added unres. res. from endfb71 and jendl40	KLY04
994 ± 43 E(n)= 30 (5) keV		2003	c	Pelletron, TOF, Au:ENDF/B-VI and MaG67b	MIO03
933 ± 47		2000	c	Linac, TOF	GLM00, GLM01
782 ± 50		1987	c	Linac, TOF, 6Li, Au:Sat.	WiM87
779 ± 40		1982	b	Linac, TOF, 6Li, Au:Sat.	Mac82b
878.6		2015	e	TENDL-2015 using the TALYS code	tendl15
890.3		2014	e	JEFF-3.2	jeff32
1070 ± 89		2011	e	ENDF/B-VII.1 incl. covariances	endfb71
793.0		2011	e	JENDL-4.0	jendl40
910.2		2006	e	ENDF/B-VII.0	endfb7
892.4		2004	e	JEFF-3.1	jeff31
794.8		2002	e	JENDL-3.3	jendl33
761		1981	e		KNM81
800		1971	s		AGM71
423		2005	t	MOST 2005	Gor05
490		2002	t	MOST 2002	Gor02
684.2		2000	t	NON-SMOKER	RaT99
799		1981	t		Har81
649		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:

r	Recalculated for kT = 30keV with the code described in Ref. 2 after renormalizing the original data to updated standard cross sections
c	Directly quoted from the reference itself
b	Calculated from smooth cross sections with model fit: ln(sigma) = a + a1 ln(E) + a2 ln^2(E)
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	2012 ± 119	-	1561 ± 89	1324 ± 73	1160 ± 62	1038 ± 54	943 ± 47	804 ± 45	705 ± 43	622 ± 42	510 ± 40	435 ± 39
Xfactor	1.00	1.00	1.00	1.00	1.00	1.00	0.99	0.98	0.96	0.93	0.88	0.83
SEF	1.00	1.00	1.00	1.00	1.00	1.00	1.00	0.99	0.97	0.96	0.92	0.90
Rate	1.20	-	1.31	1.36	1.38	1.38	1.37	1.33	1.29	1.22	1.12	1.03

MACS:
Reference: GLM01,KLY04,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: 2017

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

	99Rh 16.10 d β+ 100Rh 20.80 h β+ 101Rh 3.30 a β+ 102Rh 206.94 d β+ 103Rh 100 811 mb 98Ru 1.87 173 mb 99Ru 12.76 631 mb 100Ru 12.6 206 mb 101Ru 17.06 996 mb 102Ru 31.55 186 mb 97Tc 4.21 Ma β+ 98Tc 4.20 Ma β- 99Tc 211.11 ka 781 mb, β- 100Tc 15.80 s β- 101Tc 14.22 m β- 96Mo 16.68 112 mb 97Mo 9.55 339 mb 98Mo 24.13 99 mb 99Mo 2.75 d 240 mb, β- 100Mo 9.63 108 mb 95Nb 34.99 d 310 mb, β- 96Nb 23.35 h β- 97Nb 1.20 h β- 98Nb 2.86 s β- 99Nb 15.00 s β-

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