List of levels for 206AT

ADOPTED LEVELS, GAMMAS for ²⁰⁶At

Author: F.G. Kondev | Citation: Nucl. Data Sheets 109, 1527 (2008) | Cutoff date: 31-Jan-2008

Full ENSDF file | Adopted Levels (PDF version)

Q(β-)=-3314 keV 21	S(n)= 7530 keV 22	S(p)= 2.21×10³ keV 3	Q(α)= 5887 keV 5
Reference: 2012WA38

References:
A	²⁰⁶Rn ε decay	B	²¹⁰Fr α decay
C	¹⁹⁷Au(¹²C,3nγ)

Levels: The ε decay of ²⁰⁶Rn to levels in ²⁰⁶At has been studied in 1975ZeZY, but the suggested level scheme is tentative. There are no transitions between levels suggested in ²¹⁰Fr α decay and ¹⁹⁷Au(¹²C,3nγ) datasets, and hence, the ²⁰⁶Rn ε decay data were not included in the adopted properties. For details, the reader is suggested to see the corresponding ²⁰⁶Rn ε decay data set

Q-value: Note: Current evaluation has used the following Q record -3304 25 7519 25 2200 29 5888.4 19 2003Au03

E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
0.0	B C	(5)+	30.6 m 8 % ε = 99.10 8 % α = 0.90 8
0+X	C	(7+)
5.7 3 ?	B
31.05 22 ?	B
126.30 10	B			120.7 3 ? 126.3 1	16 5 100 5		5.7 0.0	(5)+
137.57 23 ?	B			106.5 2 ? 137.6 3 ?	19 6 100 15		31.05 0.0	(5)+
148.00 10	B			116.9 3 ? 148.0 1	36 8 100 13		31.05 0.0	(5)+
201.0 4 ?	B			195.3 2 ?	100		5.7
322.30 10 ?	B			322.3 1 ?	100		0.0	(5)+
340.40 10	B			340.4 1	100		0.0	(5)+
444.2 5	B			444.2 5	100		0.0	(5)+
657.3 3 ?	B			626.3 3 ? 651.5 3 ?	46 14 100 8		31.05 5.7
686.0+X 10	C	(9+)		686 1		[E2]	0+X	(7+)
806.7+X 14	C	(10-)	410 ns 80	121 1	100	[E1]	686.0+X	(9+)
1276.3+X 14	C	(11+)		590 1	100		686.0+X	(9+)
1347.7+X 17	C			541 1	100		806.7+X	(10-)
1393.3+X 17	C			117 1	100		1276.3+X	(11+)
1422.4+X 16	C	(12-)		616 1	100		806.7+X	(10-)
1622.5+X 15	C			346 1	100		1276.3+X	(11+)
1740.7+X 20	C			393 1	100		1347.7+X
1797.4+X 19	C	(13-)		375 1	100		1422.4+X	(12-)
1814.3+X 17	C	(14-)		392 1	100		1422.4+X	(12-)
1961.8+X 17	C			339 1	100		1622.5+X
2002.3+X 17	C	(14-)		188 1 580 1			1814.3+X 1422.4+X	(14-) (12-)
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
2010.4+X 16	C			388 1 734 1			1622.5+X 1276.3+X	(11+)
2103.3+X 19	C			289 1	100		1814.3+X	(14-)
2133.3+X 20	C			319 1	100		1814.3+X	(14-)
2251.1+X 17	C			249 1 289 1 437 1			2002.3+X 1961.8+X 1814.3+X	(14-) (14-)
2291.3+X 19	C			289 1	100		2002.3+X	(14-)
2552.1+X 20	C			301 1	100		2251.1+X
2645.3+X 20	C			831 1	100		1814.3+X	(14-)
2796.3+X 19	C			505 1 693 1			2291.3+X 2103.3+X
2902.3+X 22	C			257 1	100		2645.3+X

E(level): From a least-squares fit to Eγ, unless otherwise specified

J^π(level): From systematics in neighboring odd-odd nuclei and the suggestions in ¹⁹⁷Au(¹²C,3nγ) (1999Fe10), unless otherwise specified. Assignments are tentative

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Conversion Coefficient	Additional Data
686.0+X	(9+)		686 1	[E2]	0.01653	α=0.01653
806.7+X	(10-)	410 ns 80	121 1	[E1]	0.288	B(E1)(W.u.)=2.1E-7 4, α=0.288 8

E(level)	J^π(level)	T_1/2(level)	Comments
0.0	(5)+	30.6 m 8 % ε = 99.10 8 % α = 0.90 8	Configuration=((π h_9/2)⁺¹(ν f_5/2)^-1). The assignment is tentative.
0+X	(7+)		Configuration=((π h_9/2)⁺¹(ν f_5/2)^-1). The assignment is tentative.
806.7+X	(10-)	410 ns 80	Configuration=((π h_9/2)⁺¹(ν i_13/2)^-1). The assignment is tentative.

E(level)	E(gamma)	Comments
806.7+X	121	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10) I(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
1276.3+X	590	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10) I(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
1347.7+X	541	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10) I(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
1393.3+X	117	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10) I(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
1422.4+X	616	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10) I(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
1622.5+X	346	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10) I(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
1740.7+X	393	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10) I(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
1797.4+X	375	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10) I(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
1814.3+X	392	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10) I(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
1961.8+X	339	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10) I(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
2002.3+X	188	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
2002.3+X	580	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
2010.4+X	388	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
2010.4+X	734	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
2103.3+X	289	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10) I(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
2133.3+X	319	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10) I(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
2251.1+X	249	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
	289	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
	437	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
2291.3+X	289	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10) I(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
2552.1+X	301	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10) I(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
2645.3+X	831	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10) I(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
2796.3+X	505	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
2796.3+X	693	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)
2902.3+X	257	E(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10) I(γ): From ¹⁹⁷Au(¹²C,3nγ) (1999Fe10)