List of levels for 190PB

ADOPTED LEVELS, GAMMAS for ¹⁹⁰Pb

Authors: Balraj Singh, and Jun Chen | Citation: Nucl. Data Sheets 169, 1 (2020) | Cutoff date: 15-Oct-2020

Full ENSDF file | Adopted Levels (PDF version)

Q(β-)=-9817 keV 26	S(n)= 10644 keV 19	S(p)= 3090 keV 15	Q(α)= 5698 keV 5
Reference: 2017WA10

References:
A	¹⁹⁰Bi ε decay (6.3 S+6.2 S)	B	¹⁹⁴Po α decay (0.392 S)
C	¹⁵⁴Gd(⁴⁰Ar,4nγ)	D	¹⁶⁶Er(²⁸Si,4nγ)

Other measurements:

Mass measurement: 2000Ra23

Isomer-shift and hyperfine measurements: 1991Du07

Theory references: consult the NSR database (www.nndc.bnl.gov/nsr/) for about 150 primary references for nuclear structure and other calculations.

Q-value: S(2n)=18744 16, S(2p)=4793 18, Q(εp)=1920 30 (2017Wa10)

E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
0.0	A B C D	0+	71 s 1 % ε = 99.60 4 % α = 0.40 4
658 4	B	0+	≤ 0.22 ns	658		E0	0.0	0+
773.9 4	A B C D	2+		774.0	100	E2	0.0	0+
1163.0 4	D	(2+)		389.1 1162.9			773.9 0.0	2+ 0+
1229.1 6	A C D	(4)+		455.3	100	E2	773.9	2+
1521.3 6	D	(4+)		292 358.2 748	100		1229.1 1163.0 773.9	(4)+ (2+) 2+
1735.9 7	A C D	(6)+		506.8	100	E2	1229.1	(4)+
1905.6 7	D	(5-)		676.5	100		1229.1	(4)+
1937.2 7	D	(6+)		415.8 708	100		1521.3 1229.1	(4+) (4)+
2251.8 8	D	(8)+		515.9	100	E2	1735.9	(6)+
2276.2 8	A C D	(8)+		338.8 540.4		E2	1937.2 1735.9	(6+) (6)+
2406.4 8	D	(7-)		500.9 670.6			1905.6 1735.9	(5-) (6)+
2463.2 7	D	(8+)		525.9 727.4			1937.2 1735.9	(6+) (6)+
2606 1	D	(7-)		700 870			1905.6 1735.9	(5-) (6)+
2614.8 8	C D	(10)+	150 ns	338.6 362.9	100	E2 [E2]	2276.2 2251.8	(8)+ (8)+
2615+X	C D	(12+)	25 µs
2622.8 8	D	(9-)		216.4 370.9		[E2] [E1]	2406.4 2251.8	(7-) (8)+
2658.2 8	C D	(11)-	7.2 µs 6	43.2 382.0 406.5	38 10 34 4 100 7	[E1] (E3) E3	2614.8 2276.2 2251.8	(10)+ (8)+ (8)+
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
2825.3 9	D	(10+)		167? 211? 549 573			2658.2 2614.8 2276.2 2251.8	(11)- (10)+ (8)+ (8)+
2973 1	D	(9-)		367 566			2606 2406.4	(7-) (7-)
3055.3 10	D	(11-)		432.5			2622.8	(9-)
3180.2 9	D	(12-)		522.0			2658.2	(11)-
3196.7 10	D	(12+)		581.9			2614.8	(10)+
3238.3 11	D	(12-)		183.0			3055.3	(11-)
3350 1	D	(11-)		377 728			2973 2622.8	(9-) (9-)
3435.3 14	D	(12+)		610			2825.3	(10+)
3512.0+X 10	D	(14+)		897			2615+X	(12+)
3601.3 9	D	(13-)		421.2 943.1			3180.2 2658.2	(12-) (11)-
4030.0+X 15	D	(15+)		518			3512.0+X	(14+)
4093.2 10	D	(14-)		491.8 913.0?			3601.3 3180.2	(13-) (12-)
4328.1 10	D	(15-)		234.7 726.9			4093.2 3601.3	(14-) (13-)
4507.0+X 18	D	(16+)		477			4030.0+X	(15+)
4516.8 11	D	(16+)	≈ 14 ns	188.7			4328.1	(15-)
4865.2 12	D	(17+)		348.4			4516.8	(16+)
5111.3 13	D	(18+)		246.1			4865.2	(17+)
5330.3 14	D	(19+)		219.0			5111.3	(18+)
Y	D	J AP (10+)
309.7+Y 8	D	J+2		309.7 8		(E2)	Y	J AP (10+)
660.0+Y 11	D	J+4		350.3 7		(E2)	309.7+Y	J+2
1048.8+Y 13	D	J+6		388.8 8		(E2)	660.0+Y	J+4
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
1476.7+Y 16	D	J+8		427.9 8		(E2)	1048.8+Y	J+6
1942.7+Y 18	D	J+10		466.0 9			1476.7+Y	J+8
2446.7+Y 20	D	J+12		504 1			1942.7+Y	J+10
2985.7+Y 23 ?	D	J+14		539 1 ?			2446.7+Y	J+12

E(level): From a least-squares fit to γ-ray energies, assuming Δ(Eγ)=0.5 keV for each γ ray, except when stated

J^π(level): As proposed in ¹⁶⁶Er(²⁸Si,4nγ) (1998Dr06, 2001Dr05), which are based on systematics, band structures and multipolarity assignments from ce data

M(γ): From ce data and DCO values (for SD band transitions) in ¹⁶⁶Er(²⁸Si,4nγ)

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 1 - g.s. band
0.0	0+	71 s 1 % ε = 99.60 4 % α = 0.40 4
773.9 4	2+		774.0	100	E2	0.0	0+
1229.1 6	(4)+		455.3	100	E2	773.9	2+
1735.9 7	(6)+		506.8	100	E2	1229.1	(4)+
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 2 - Kπ=2⁺ band.
1163.0 4	(2+)
1521.3 6	(4+)		292 358.2 748	100		1229.1 1163.0 773.9	(4)+ (2+) 2+
1937.2 7	(6+)		415.8 708	100		1521.3 1229.1	(4+) (4)+
2463.2 7	(8+)		525.9 727.4			1937.2 1735.9	(6+) (6)+
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 3 - γ cascade based on (11-)
2658.2 8	(11)-	7.2 µs 6
3180.2 9	(12-)		522.0			2658.2	(11)-
3601.3 9	(13-)		421.2 943.1			3180.2 2658.2	(12-) (11)-
4093.2 10	(14-)		491.8 913.0?			3601.3 3180.2	(13-) (12-)
4328.1 10	(15-)		234.7 726.9			4093.2 3601.3	(14-) (13-)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 4 - γ cascade based on (16⁺)
4516.8 11	(16+)	≈ 14 ns
4865.2 12	(17+)		348.4			4516.8	(16+)
5111.3 13	(18+)		246.1			4865.2	(17+)
5330.3 14	(19+)		219.0			5111.3	(18+)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 5 - γ cascade based on (5-)
1905.6 7	(5-)
2406.4 8	(7-)		500.9 670.6			1905.6 1735.9	(5-) (6)+
2622.8 8	(9-)		216.4 370.9		[E2] [E1]	2406.4 2251.8	(7-) (8)+
3055.3 10	(11-)		432.5			2622.8	(9-)
3238.3 11	(12-)		183.0			3055.3	(11-)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 6 - γ cascade based on (12⁺)
2615+X	(12+)	25 µs
3512.0+X 10	(14+)		897			2615+X	(12+)
4030.0+X 15	(15+)		518			3512.0+X	(14+)
4507.0+X 18	(16+)		477			4030.0+X	(15+)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 7 - γ cascade based on (7-)
2606 1	(7-)
2973 1	(9-)		367 566			2606 2406.4	(7-) (7-)
3350 1	(11-)		377 728			2973 2622.8	(9-) (9-)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 8 - SD band (2005Wi10).
Y	J AP (10+)
309.7+Y 8	J+2		309.7 8		(E2)	Y	J AP (10+)
660.0+Y 11	J+4		350.3 7		(E2)	309.7+Y	J+2
1048.8+Y 13	J+6		388.8 8		(E2)	660.0+Y	J+4
1476.7+Y 16	J+8		427.9 8		(E2)	1048.8+Y	J+6
1942.7+Y 18	J+10		466.0 9			1476.7+Y	J+8
2446.7+Y 20	J+12		504 1			1942.7+Y	J+10
2985.7+Y 23	J+14		539 1 ?			2446.7+Y	J+12

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Conversion Coefficient	Additional Data
773.9	2+		774.0	E2	0.01113	α=0.01113
1229.1	(4)+		455.3	E2	0.0369	α=0.0369
1735.9	(6)+		506.8	E2	0.0284	α=0.0284
2251.8	(8)+		515.9	E2	0.0273	α=0.0273
2276.2	(8)+		540.4	E2	0.0244	α=0.0244
2614.8	(10)+	150 ns	338.6	E2	0.0813	B(E2)(W.u.)=0.012, α=0.0813
2614.8	(10)+	150 ns	362.9	[E2]	0.0670	α=0.0670
2622.8	(9-)		216.4	[E2]	0.327	α=0.327
2658.2	(11)-	7.2 µs 6	43.2	[E1]	0.88	B(E1)(W.u.)=5.7E-8 18, α=0.88 3
	(11)-	7.2 µs 6	382.0	(E3)	0.245	B(E3)(W.u.)=9.6 17, α=0.245
	(11)-	7.2 µs 6	406.5	E3	0.195	B(E3)(W.u.)=18 3, α=0.195

E(level)	J^π(level)	T_1/2(level)	Comments
0.0	0+	71 s 1 % ε = 99.60 4 % α = 0.40 4	%α: from 1992Wa14. Others: 0.5 2 (1996Bi17), 0.9 2 (1981El03), 0.21 7 (1974Ho26). E(level): %α: from 1992Wa14. Others: 0.5 2 (1996Bi17), 0.9 2 (1981El03), 0.21 7 (1974Ho26). g.s. band.
773.9	2+		E(level): g.s. band.
1163.0	(2+)		E(level): Kπ=2⁺ band.
1229.1	(4)+		E(level): g.s. band.
1521.3	(4+)		E(level): Kπ=2⁺ band.
1735.9	(6)+		E(level): g.s. band.
1937.2	(6+)		E(level): Kπ=2⁺ band.
2463.2	(8+)		E(level): Kπ=2⁺ band.
2614.8	(10)+	150 ns	Configuration=νi^-2_13/2 (1998Dr06).
2615+X	(12+)	25 µs	Configuration=νi_13/2^-2 (1998Dr06).
2658.2	(11)-	7.2 µs 6	Configuration=πi_13/2h_9/2 (1998Dr06).
Y	J AP (10+)		E(level): SD band (2005Wi10).
309.7+Y	J+2		E(level): SD band (2005Wi10).
660.0+Y	J+4		E(level): SD band (2005Wi10).
1048.8+Y	J+6		E(level): SD band (2005Wi10).
1476.7+Y	J+8		E(level): SD band (2005Wi10).
1942.7+Y	J+10		E(level): SD band (2005Wi10).
2446.7+Y	J+12		E(level): SD band (2005Wi10).
2985.7+Y	J+14		E(level): SD band (2005Wi10).

E(level)	E(gamma)	Comments
658	658	M(γ): from ¹⁹⁴Po α decay.
773.9	774.0	E(γ): other: 883.8 from ¹⁹⁰Bi ε decay
1229.1	455.3	E(γ): other: 455.0 from ¹⁹⁰Bi ε decay
1735.9	506.8	E(γ): other: 506.2 from ¹⁹⁰Bi ε decay
2276.2	540.4	E(γ): other: 539.4 from ¹⁹⁰Bi ε decay
2446.7+Y	504	E(γ): strongly contaminated by a low-lying 504γ in ¹⁹⁰Pb