List of levels for 229PA

ADOPTED LEVELS, GAMMAS for ²²⁹Pa

Authors: E. Browne, J. K. Tuli | Citation: Nucl. Data Sheets 109, 2657 (2008) | Cutoff date: 1-Jun-2008

Full ENSDF file | Adopted Levels (PDF version)

Q(β-)=-1313 keV 7	S(n)= 7097 keV 6	S(p)= 4163 keV 4	Q(α)= 5835 keV 5
Reference: 2012WA38

References:
A	²³³Np α decay	B	²²⁹U ε decay
C	²³¹Pa(p,t)	D	²³⁰Th(p,2nγ)
E	²³¹Pa(p,tγ)

Assignment: ²³⁰Th(d,3n) chem (1949Hy01,1958Hi78,1987Ah05); parent ²²⁵Ac (1949Hy01); Th(38-MeV p) chem (1973Ag01).

Theory, Calculations:

2001Gr18,2000Gr11,2000Gr15,1999Gr32: Parity nonconservation study with atomic radiation and helicity of ce for 0.22γ. Calculated M1 contribution in E1.

1997Sp03,1997Fl02,1996Au06: Calculated electric nuclear moments.

Q-value: Note: Current evaluation has used the following Q record $ -1313 6 7098 5 4163.2 25 5835 4 2003Au03

E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
0.0	A B E	(5/2+)	1.50 d 5 % ε = 99.52 5 % α = 0.48 5
11.4 2	B D	(7/2+)		11.2 7 S			0.0	(5/2+)
11.6 3	B C D E	3/2-		11.6 3		E1	0.0	(5/2+)
26.7 4	C	1/2-
59.1 5	D	(9/2+)		48?			11.4	(7/2+)
68.1 3	C D	7/2-		56.4 3		E2	11.6	3/2-
95.2?	D	(11/2+)
99.3 4	C	5/2-
134.10 10	B C D	(5/2-)		122.51 10	100	M1	11.6	3/2-
178.0 4	C D	11/2-		82.6? 109.9 2 118.9 3		(E1) E2 E1	95.2 68.1 59.1	(11/2+) 7/2- (9/2+)
220.0 4	C D	9/2-		42.0 3 86.5 9		(M1) (E2)	178.0 134.10	11/2- (5/2-)
222.45 17	B D	(3/2+)		88.4 5 211.09 10	100 10 20 2	E1 [E2]	134.10 11.4	(5/2-) (7/2+)
251.9 6	C	1/2+
253.34 14	B D	(7/2+)		119.24 10 241.92 10	41 5 100 10	E1	134.10 11.4	(5/2-) (7/2+)
284.1 4	C	5/2+
303.0 3	C	3/2+
338.1 4	C D	15/2-		160.1 2		E2	178.0	11/2-
377.3 4	C D	9/2+		199.3 2		E1	178.0	11/2-
386.2 5	C D	13/2-		48.1 3 208.2 5		(M1) (M1)	338.1 178.0	15/2- 11/2-
392.4 5	D	7/2+		172.4 3		E1	220.0	9/2-
470.26 16	B	(1/2,3/2,5/2)		216.90 10 247.84 10	42 4 100 8		253.34 222.45	(7/2+) (3/2+)
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
520.6 5	D	11/2+		128.2? 134.4 5 300.6 2		E1 E1	392.4 386.2 220.0	7/2+ 13/2- 9/2-
521.6 4	C D	13/2+		143.3? 183.5 4 343.6 2		E1 E1	377.3 338.1 178.0	9/2+ 15/2- 11/2-
545.3 5	C D	19/2-		207.2 2		E2	338.1	15/2-
594.2 10	C D	17/2-		256.1 9		(M1)	338.1	15/2-
689.2 5	C D	15/2+		168.6? 303.0 2		E1	520.6 386.2	11/2+ 13/2-
712.3 5	C D	17/2+		167.0 4 190.7 6 ? 374.2 3		E1 E2 E1	545.3 521.6 338.1	19/2- 13/2+ 15/2-
714.4 8	C	(3/2-)
738.7 9	C	(1/2-)
767.4 7	C	(7/2-)
788.4 8	C
794.6 6	C D	(23/2-)		249.3 3		(E2)	545.3	19/2-
812.1 7	C	(5/2-)
840.8 10	D	(21/2-)		295.5 9			545.3	19/2-
842.1 7	C	3/2-
858.2 9	C	(1/2-)
876.6 8	C	(7/2-)
902.9 9	C	(5/2-)
942.1 10	C	(11/2-)
978.0 10	C	3/2-
991.2 9	C	3/2-
1005.9 9	C	3/2-
1024.2 15	C
1033.6 10	C
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
1068.5 10	C
1075.5 13	C
1085.0 10	C
1116.4 10	C	(3/2-)
1132.9 11	C
1145.9 12	C
1161.3 11	C
1172.6 10	C
1185.5 12	C
1196.1 12	C
1211.4 11	C
1220.1 11	C
1240.8 11	C
1264.3 11	C
1298.5 12	C
1313.8 12	C
1370.6 10	C	3/2-
1412.5 11	C	3/2-
1438.6 11	C	(3/2-)
1468.8 12	C	(3/2-)
1490.9 12	C
1521.8 13	C	3/2-
1535.3 13	C	3/2-
1551.6 14	C	(1/2-)
1581.4 13	C	(7/2-)
1604.3 13	C	(5/2-)
1610 5	C	(1/2+)
1628.4 13	C	(5/2+)
1648.0 13	C	(3/2+)
1664.6 13	C
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
1678.3 14	C	(11/2-)
1697.8 14	C	(9/2+)
1720.5 14	C	(9/2-)
1742.9 14	C
1753.7 14	C
1768.3 14	C
1784.8 14	C
1844.2 15	C

E(level): Level energies are from least-squares fit to adopted γ-ray energies, readjusted to 11.6 keV 3 for the 3/2- member of the 1/2-[530] rotational band (1998Le15).

J^π(level): Jπ assignments are based on rotational structure, L-transfer values in the ²³¹Pa(p,t) reaction, γ-ray multipolarities from ²³⁰Th(p,2nγ) and ²²⁹U ε decay, and on the energy systematics of Nilsson single-particle orbitals in other neighboring odd-A protactinum isotopes.

E(γ): From ²³⁰Th(p,2nγ), unless otherwise specified.

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 1 - K^π=1/2-, s=-i band. Main Configuration=1/2[530].
11.6 3	3/2-
68.1 3	7/2-		56.4 3		E2	11.6	3/2-
178.0 4	11/2-		82.6? 109.9 2 118.9 3		(E1) E2 E1	95.2 68.1 59.1	(11/2+) 7/2- (9/2+)
338.1 4	15/2-
545.3 5	19/2-		207.2 2		E2	338.1	15/2-
794.6 6	(23/2-)		249.3 3		(E2)	545.3	19/2-
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 2 - K^π=1/2-, s=+i band. Main Configuration=1/2[530].
26.7 4	1/2-
99.3 4	5/2-
220.0 4	9/2-		42.0 3 86.5 9		(M1) (E2)	178.0 134.10	11/2- (5/2-)
386.2 5	13/2-
594.2 10	17/2-		256.1 9		(M1)	338.1	15/2-
840.8 10	(21/2-)		295.5 9			545.3	19/2-
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 3 - K^π=1/2⁺, s=-i band. Main Configuration=1/2[660].
251.9 6	1/2+
284.1 4	5/2+
377.3 4	9/2+		199.3 2		E1	178.0	11/2-
521.6 4	13/2+
712.3 5	17/2+		167.0 4 190.7 6 ? 374.2 3		E1 E2 E1	545.3 521.6 338.1	19/2- 13/2+ 15/2-
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 4 - K^π=1/2⁺, s=+i band. Main Configuration=1/2[660].
303.0 3	3/2+
392.4 5	7/2+		172.4 3		E1	220.0	9/2-
520.6 5	11/2+		128.2? 134.4 5 300.6 2		E1 E1	392.4 386.2 220.0	7/2+ 13/2- 9/2-
689.2 5	15/2+
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 5 - K^π=1/2- ²²⁸Th core-excited rotational band
714.4 8	(3/2-)
738.7 9	(1/2-)
767.4 7	(7/2-)
812.1 7	(5/2-)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 6 - K^π=1/2- ²²⁸Th core-excited rotational band
842.1 7	3/2-
858.2 9	(1/2-)
876.6 8	(7/2-)
902.9 9	(5/2-)
942.1 10	(11/2-)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 7 - K^π=1/2- ²²⁸Th core-excited rotational band
1535.3 13	3/2-
1551.6 14	(1/2-)
1581.4 13	(7/2-)
1604.3 13	(5/2-)
1678.3 14	(11/2-)
1720.5 14	(9/2-)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 8 - K^π=1/2⁺ ²²⁸Th core-excited rotational band
1610 5	(1/2+)
1628.4 13	(5/2+)
1648.0 13	(3/2+)
1697.8 14	(9/2+)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 9 - 5/2[642]
0.0	(5/2+)	1.50 d 5 % ε = 99.52 5 % α = 0.48 5
11.4 2	(7/2+)		11.2 7 S			0.0	(5/2+)
59.1 5	(9/2+)		48?			11.4	(7/2+)
95.2	(11/2+)

E(level)	J^π(level)	T_1/2(level)	Comments
0.0	(5/2+)	1.50 d 5 % ε = 99.52 5 % α = 0.48 5	β₂=0.185 (2002De24) %ε and %α were determined by 1987Ah05 from K x-ray and α particle intensities. Other measurements: %ε=99.75, %α=0.25 (1951Sl94). α(θ) from oriented nuclei in ²³²Th(p,4n): 5580α(θ): A₂=1.13 11; 5670α(θ): A₂=0.81 11 (1999Sc17,1997Sc26). E(level): 5/2[642].
11.4	(7/2+)		E(level): 5/2[642].
11.6	3/2-		E(level): K^π=1/2-, s=-i band. Main Configuration=1/2[530].
26.7	1/2-		E(level): K^π=1/2-, s=+i band. Main Configuration=1/2[530].
59.1	(9/2+)		E(level): 5/2[642].
68.1	7/2-		E(level): K^π=1/2-, s=-i band. Main Configuration=1/2[530].
95.2	(11/2+)		E(level): 5/2[642].
99.3	5/2-		E(level): K^π=1/2-, s=+i band. Main Configuration=1/2[530].
178.0	11/2-		E(level): K^π=1/2-, s=-i band. Main Configuration=1/2[530].
220.0	9/2-		E(level): K^π=1/2-, s=+i band. Main Configuration=1/2[530].
251.9	1/2+		E(level): K^π=1/2⁺, s=-i band. Main Configuration=1/2[660].
284.1	5/2+		E(level): K^π=1/2⁺, s=-i band. Main Configuration=1/2[660].
303.0	3/2+		E(level): K^π=1/2⁺, s=+i band. Main Configuration=1/2[660].
338.1	15/2-		E(level): K^π=1/2-, s=-i band. Main Configuration=1/2[530].
377.3	9/2+		E(level): K^π=1/2⁺, s=-i band. Main Configuration=1/2[660].
386.2	13/2-		E(level): K^π=1/2-, s=+i band. Main Configuration=1/2[530].
392.4	7/2+		E(level): K^π=1/2⁺, s=+i band. Main Configuration=1/2[660].
520.6	11/2+		E(level): K^π=1/2⁺, s=+i band. Main Configuration=1/2[660].
521.6	13/2+		E(level): K^π=1/2⁺, s=-i band. Main Configuration=1/2[660].
545.3	19/2-		E(level): K^π=1/2-, s=-i band. Main Configuration=1/2[530].
594.2	17/2-		E(level): K^π=1/2-, s=+i band. Main Configuration=1/2[530].
689.2	15/2+		E(level): K^π=1/2⁺, s=+i band. Main Configuration=1/2[660].
712.3	17/2+		E(level): K^π=1/2⁺, s=-i band. Main Configuration=1/2[660].
714.4	(3/2-)		E(level): K^π=1/2- ²²⁸Th core-excited rotational band.
738.7	(1/2-)		E(level): K^π=1/2- ²²⁸Th core-excited rotational band.
E(level)	J^π(level)	T_1/2(level)	Comments
767.4	(7/2-)		E(level): K^π=1/2- ²²⁸Th core-excited rotational band.
794.6	(23/2-)		E(level): K^π=1/2-, s=-i band. Main Configuration=1/2[530].
812.1	(5/2-)		E(level): K^π=1/2- ²²⁸Th core-excited rotational band.
840.8	(21/2-)		E(level): K^π=1/2-, s=+i band. Main Configuration=1/2[530].
842.1	3/2-		E(level): K^π=1/2- ²²⁸Th core-excited rotational band.
858.2	(1/2-)		E(level): K^π=1/2- ²²⁸Th core-excited rotational band.
876.6	(7/2-)		E(level): K^π=1/2- ²²⁸Th core-excited rotational band.
902.9	(5/2-)		E(level): K^π=1/2- ²²⁸Th core-excited rotational band.
942.1	(11/2-)		E(level): K^π=1/2- ²²⁸Th core-excited rotational band.
1535.3	3/2-		E(level): K^π=1/2- ²²⁸Th core-excited rotational band.
1551.6	(1/2-)		E(level): K^π=1/2- ²²⁸Th core-excited rotational band.
1581.4	(7/2-)		E(level): K^π=1/2- ²²⁸Th core-excited rotational band.
1604.3	(5/2-)		E(level): K^π=1/2- ²²⁸Th core-excited rotational band.
1610	(1/2+)		E(level): K^π=1/2⁺ ²²⁸Th core-excited rotational band.
1628.4	(5/2+)		E(level): K^π=1/2⁺ ²²⁸Th core-excited rotational band.
1648.0	(3/2+)		E(level): K^π=1/2⁺ ²²⁸Th core-excited rotational band.
1678.3	(11/2-)		E(level): K^π=1/2- ²²⁸Th core-excited rotational band.
1697.8	(9/2+)		E(level): K^π=1/2⁺ ²²⁸Th core-excited rotational band.
1720.5	(9/2-)		E(level): K^π=1/2- ²²⁸Th core-excited rotational band.

E(level)	E(gamma)	Comments
11.6	11.6	E(γ): from (p,tγ)
134.10	122.51	E(γ): From ²²⁹U ε decay M(γ): from ε decay
222.45	88.4	E(γ): From ²²⁹U ε decay M(γ): from ε decay
222.45	211.09	E(γ): From ²²⁹U ε decay
253.34	119.24	E(γ): From ²²⁹U ε decay M(γ): from ε decay
253.34	241.92	E(γ): From ²²⁹U ε decay
470.26	216.90	E(γ): from ε decay. From ²²⁹U ε decay
470.26	247.84	E(γ): From ²²⁹U ε decay