List of levels for 199BI

Author: Balraj Singh | Citation: Nucl. Data Sheets 108, 79 (2007) | Cutoff date: 15-Oct-2006

1985Pi05 interpreted the high-spin states as h_9/2 proton coupling to even-even core.

Q-value: Note: Current evaluation has used the following Q record

E(level): From least squares fit to adopted Eγ. For additional levels suggested by 1985St02, see ¹⁹⁹Po ε decay (4.17 min) data set.

J^π(level): The Jπ assignments for levels above the 1947-keV isomer are from (¹⁰B,5nγ) data (1985Pi05) and are based on γ(θ), excit, and α limits extracted from measured Iγ.

T_1/2(level): From (¹⁰B,5nγ) data set, unless otherwise noted.

M(γ): Based on α(K)exp in ¹⁹⁹Po ε decay and on γ(θ) in (HI,xnγ)

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Mixing Ratio	Conversion Coefficient	Additional Data
667	(1/2+)	24.70 m 15 % ε = 99 1 % α ≈ 0.01 % IT ≤ 2	667	[M4]		0.70	α=0.70
845.7	(5/2)-		845.7	(E2,M1)		0.021	α=0.021 11
880.2	(7/2)-		880.2	M1		0.0281	α=0.0281, α(K)=0.0230, α(L)=0.00387
913	(3/2+)		246.0	M1+E2	2.1 3	0.34	α=0.34 4, α(K)=0.21 3, α(L)=0.0953 15, α(M)=0.0242 2, α(N+)=0.00803 8
1002.2	13/2-		1002.19 20	E2		0.0070	α=0.0070, α(K)=0.00557, α(L)=0.00111
1034.3	11/2-		1034.3 3	M1+E2	-1.3 10	0.011	α=0.011 7, α(K)=0.0099 6, α(L)=0.0016 9
1119	(5/2+)		206.7	(M1)		1.36	α=1.36, α(K)=1.10, α(L)=0.192, α(M)=0.0452, α(N+)=0.0151
1119	(5/2+)		452.5	[E2]		0.0396	α=0.0396, α(K)=0.0266, α(L)=0.00970, α(M)=0.00244, α(N+)=0.00081
1197.4	(11/2,13/2)-		195.5	M1		1.59	α=1.59, α(K)=1.29, α(L)=0.225, α(M)=0.0529, α(N+)=0.0177
1248.4	(-)		1248.4	(E2,M1)		0.008	α=0.008 3
1321.0	(-)		1321.0	(E2)		0.00416	α=0.00416
1396.3	(13/2)+		362.01 25	E1		0.0200	α=0.0200, α(K)=0.0164, α(L)=0.00275, α(M)=0.00064, α(N+)=0.00021
1396.3	(13/2)+		394.1	[E1]		0.0166	α=0.0166, α(K)=0.0136, α(L)=0.00226, α(M)=0.000527, α(N+)=0.000173
1459	(1/2+,3/2+,5/2+)		545.8 2	M1		0.0976	α=0.0976, α(K)=0.0796, α(L)=0.0135
1501.8	17/2-		499.61 20	E2		0.0310	α=0.0310, α(K)=0.0216, α(L)=0.00708, α(M)=0.00177, α(N+)=0.00059
1635.9	(13/2)+		239.8 4	M1+E2	1.2 2	0.51	α=0.51 6, α(K)=0.37 6, α(L)=0.111 3, α(M)=0.0276 4, α(N+)=0.00916 13
1635.9	(13/2)+		601.5 3	E1		0.00684	α=0.00684, α(K)=0.00564, α(L)=0.00090
1647.5	17/2+	34.1 ns 24	145.70 20	E1		0.177	B(E1)(W.u.)=1.48E-6 25, α=0.177, α(K)=0.142, α(L)=0.0266, α(M)=0.00627, α(N+)=0.00204
1647.5	17/2+	34.1 ns 24	251.13 25	(E2)		0.213	B(E2)(W.u.)=0.016 3, α=0.213, α(K)=0.101, α(L)=0.0829, α(M)=0.0216, α(N+)=0.00713
1922.3	(21/2+)	< 50 ns	274.82 20	(E2)		0.160	B(E2)(W.u.)>0.10, α=0.160, α(K)=0.0818, α(L)=0.0580, α(M)=0.0150, α(N+)=0.00497
3018.0+X	(31/2-)		494.80 25	(M1+E2)	-1.9 17	0.05	α=0.05 7
3401.2+X	(33/2-)		383.05 25	D+Q	-0.10 11

Q(β-)=-5.58×10³ keV 3	S(n)= 9.50×10³ keV 3	S(p)= 2036 keV 18	Q(α)= 4933 keV 7
Reference: 2012WA38

References:
A	¹⁹⁹Bi IT decay (0.10 μs)	B	¹⁹⁹Po ε decay (5.48 M+4.17 M)
C	²⁰³At α decay (7.4 M)	D	(HI,xnγ)

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	9/2-	27 m 1 % ε = 100
667 4	B	(1/2+)	24.70 m 15 % ε = 99 1 % α ≈ 0.01 % IT ≤ 2	667S		[M4]	0.0	9/2-
845.7 2	B	(5/2)-		845.7	100	(E2,M1)	0.0	9/2-
880.2 2	B	(7/2)-		880.2	100	M1	0.0	9/2-
913	B	(3/2+)		246.0	100	M1+E2	667	(1/2+)
1002.2 2	A B D	13/2-		1002.19 20	100	E2	0.0	9/2-
1034.3 3	B D	11/2-		1034.3 3	100	M1+E2	0.0	9/2-
1119	B	(5/2+)		206.7 452.5	100 79	(M1) [E2]	913 667	(3/2+) (1/2+)
1197.4 2	B	(11/2,13/2)-		195.5 1197.5	29 100	M1	1002.2 0.0	13/2- 9/2-
1248.4 2	B	(-)		1248.4	100	(E2,M1)	0.0	9/2-
1321.0 2	B	(-)		1321.0	100	(E2)	0.0	9/2-
1396.3 3	B D	(13/2)+		362.01 25 394.1 1395.9	100 2 59 21 20	E1 [E1] [M2,E3]	1034.3 1002.2 0.0	11/2- 13/2- 9/2-
1459	B	(1/2+,3/2+,5/2+)		545.8 2	100	M1	913	(3/2+)
1501.8 3	A B D	17/2-		499.61 20	100	E2	1002.2	13/2-
1523.6 2	B			1523.6	100		0.0	9/2-
1619.4 5	B D			617.2 4	100		1002.2	13/2-
1635.9 4	B D	(13/2)+		239.8 4 601.5 3	29.1 16 100 2	M1+E2 E1	1396.3 1034.3	(13/2)+ 11/2-
1647.5 3	A B D	17/2+	34.1 ns 24	145.70 20 251.13 25	100.0 11 8.51 9	E1 (E2)	1501.8 1396.3	17/2- (13/2)+
1663.4 2	B			1663.4	100		0.0	9/2-
1683.2 2	B			1683.2	100		0.0	9/2-
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
1706.2 2	B			1706.2	100		0.0	9/2-
1822.1 2	B			1822.1	100		0.0	9/2-
1922.3 4	A D	(21/2+)	< 50 ns	274.82 20	100	(E2)	1647.5	17/2+
1922.3+X	A D	(25/2+)	0.10 µs 3	X			1922.3	(21/2+)
1999.5 5	D	(19/2-)		352.0 4	100		1647.5	17/2+
2001.0 5	D			353.5 4	100		1647.5	17/2+
2029.8+X 3	D	(27/2+)		107.3 4	100		1922.3+X	(25/2+)
2133.1 2	B			2133.1	100		0.0	9/2-
2179.8+X 2	D	(27/2-)		257.55 25	100	D	1922.3+X	(25/2+)
2238.1+X 2	D	(27/2-)		315.80 20	100	D	1922.3+X	(25/2+)
2345.6+X 3 ?	D			423.3 3	100		1922.3+X	(25/2+)
2435.7+X 4 ?	D			197.6 3	100		2238.1+X	(27/2-)
2443.2+X 3	D			205.13 25	100	D	2238.1+X	(27/2-)
2523.2+X 2	D	29/2-	168 ns 13	80.0S 87.6S 285.16 25 343.4 3 493.2 3	78.7 8 29 5 100 1	D+Q D	2443.2+X 2435.7+X 2238.1+X 2179.8+X 2029.8+X	(27/2-) (27/2-) (27/2+)
2570.4+X 3	D	(27/2+)		648.09 25	100	D	1922.3+X	(25/2+)
2749.2+X 4	D			403.65 25	100		2345.6+X
2928.1+X 3	D	(29/2)		1005.8 3	100	Q	1922.3+X	(25/2+)
3018.0+X 3	D	(31/2-)		494.80 25	100	(M1+E2)	2523.2+X	29/2-
3401.2+X 3	D	(33/2-)		383.05 25 878.06 25	100 2 67 2	D+Q Q	3018.0+X 2523.2+X	(31/2-) 29/2-
3635.0+X 5	D			617.0 3	100		3018.0+X	(31/2-)
3780.9+X 5	D	(35/2-)		379.7 4	100	D	3401.2+X	(33/2-)
3903.0+X 5 ?	D			885.0 3	100	D	3018.0+X	(31/2-)
4296.9+X 11	D			393.9	100		3903.0+X
Y	D	J
184.4+Y 5	D	J+1		184.4 5		D	Y	J
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
400.2+Y 7	D	J+2		215.8 5		D	184.4+Y	J+1
642.0+Y 9	D	J+3		241.8 5		D	400.2+Y	J+2
923.2+Y 10	D	J+4		281.2 5		D	642.0+Y	J+3
1236.7+Y 11	D	J+5		313.5 5		D	923.2+Y	J+4
1590.3+Y 12	D	J+6		353.6 5		D	1236.7+Y	J+5
1950.8+Y 13	D	J+7		360.5 5		D	1590.3+Y	J+6
2316.7+Y 14	D	J+8		365.9 5		D	1950.8+Y	J+7

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 1 - MAGNETIC-DIPOLE ROTATIONAL band (1994Da17).
Y	J
184.4+Y 5	J+1		184.4 5		D	Y	J
400.2+Y 7	J+2		215.8 5		D	184.4+Y	J+1
642.0+Y 9	J+3		241.8 5		D	400.2+Y	J+2
923.2+Y 10	J+4		281.2 5		D	642.0+Y	J+3
1236.7+Y 11	J+5		313.5 5		D	923.2+Y	J+4
1590.3+Y 12	J+6		353.6 5		D	1236.7+Y	J+5
1950.8+Y 13	J+7		360.5 5		D	1590.3+Y	J+6
2316.7+Y 14	J+8		365.9 5		D	1950.8+Y	J+7

E(level)	J^π(level)	T_1/2(level)	Comments
0.0	9/2-	27 m 1 % ε = 100	μ=4.6 4 Configuration=πh_9/2~#νj^-10_0⁺.
1002.2	13/2-		Configuration=πh_9/2~#νj^-2_2⁺~#νj^-8₀₊.
1034.3	11/2-		Configuration=πh_9/2~#νj^-2_2⁺~#νj^-8₀₊.
1396.3	(13/2)+		Configuration=πi_13/2.
1501.8	17/2-		Configuration=πh_9/2~#ν(f_5/2^-1p_3/2^-1+f_5/2^-2) _4⁺~#νj^-8₀₊.
1647.5	17/2+	34.1 ns 24	Configuration=πh_9/2~#ν(p_3/2^-1i_13/2^-1+f_5/2^-1 i_13/2^-1)_5-~#νj^-8_0⁺.
1922.3	(21/2+)	< 50 ns	Configuration=πh_9/2~#ν(p_3/2^-1i_13/2^-1+f_5/2^-1 i_13/2^-1)_7-~#νj^-8_0⁺.
2523.2+X	29/2-	168 ns 13	Configuration=πh_9/2~#νi_13/2^-2_12⁺~#νj^-8₀₊.
3018.0+X	(31/2-)		Configuration=πh_9/2~#νi_13/2^-2_12⁺~#νj^-8₀₊.
3401.2+X	(33/2-)		Configuration=πh_9/2~#νi_13/2^-2_12⁺~#νj^-8₀₊.
3780.9+X	(35/2-)		Configuration=πh_9/2~#νi_13/2^-2_10⁺,12⁺~# ν^-2_2⁺,4⁺~#νj^-6₀₊.
Y	J		E(level): MAGNETIC-DIPOLE ROTATIONAL band (1994Da17).
184.4+Y	J+1		E(level): MAGNETIC-DIPOLE ROTATIONAL band (1994Da17).
400.2+Y	J+2		E(level): MAGNETIC-DIPOLE ROTATIONAL band (1994Da17).
642.0+Y	J+3		E(level): MAGNETIC-DIPOLE ROTATIONAL band (1994Da17).
923.2+Y	J+4		E(level): MAGNETIC-DIPOLE ROTATIONAL band (1994Da17).
1236.7+Y	J+5		E(level): MAGNETIC-DIPOLE ROTATIONAL band (1994Da17).
1590.3+Y	J+6		E(level): MAGNETIC-DIPOLE ROTATIONAL band (1994Da17).
1950.8+Y	J+7		E(level): MAGNETIC-DIPOLE ROTATIONAL band (1994Da17).
2316.7+Y	J+8		E(level): MAGNETIC-DIPOLE ROTATIONAL band (1994Da17).

E(level)	E(gamma)	Comments
1635.9	239.8	M(γ): From ce data in ¹⁹⁹Po ε decay
1635.9	601.5	M(γ): From ce data in ¹⁹⁹Po ε decay
1647.5	145.70	M(γ): From ce data in ¹⁹⁹Po ε decay