List of levels for 240U

ADOPTED LEVELS, GAMMAS for ²⁴⁰U

Authors: Balraj Singh, E. Browne | Citation: Nucl. Data Sheets 109, 2439 (2008) | Cutoff date: 31-Jul-2008

Full ENSDF file | Adopted Levels (PDF version)

Q(β-)=399 keV 18	S(n)= 5929 keV 5	S(p)= 7.91×10³ keV SY	Q(α)= 4036 keV 15
Reference: 2012WA38

References:
A	²⁴⁴Pu α decay (8.11×10⁷ Y)	B	²³⁸U(t,p)
C	²³⁸U(¹⁸O,¹⁶OG)

Other reactions:

²³⁸U(¹⁸⁴W,¹⁸²W): 1983Hi09

Q-value: Note: Current evaluation has used the following Q record $ 400 16 5930 5 7910 syst 3840 syst 2003Au03

Q-value: ΔS(p)=ΔQ(α)=200 (syst,2003Au03)

E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
0	A B C	0+	14.1 h 1 % β^- = 100
45 1	A B C	(2+)		45 1 S		[E2]	0	0+
150.60 10	B C	(4+)		105.6 1	100	[E2]	45	(2+)
313.19 14	C	(6+)		162.6 1	100	[E2]	150.60	(4+)
528.69 18	C	(8+)		215.5 1	100	[E2]	313.19	(6+)
792.9 3	C	(10+)		264.1 2	100	[E2]	528.69	(8+)
847.0 4	C	(3-)		696.4 5 801.9 5	85 19 100 19		150.60 45	(4+) (2+)
944.7 3	C	(5-)		631.6 5 794.0 3	63 12 100 15		313.19 150.60	(6+) (4+)
1040 5	B
1087.7 3	C	(7-)		558.9 7 774.5 3	24 11 100 14		528.69 313.19	(8+) (6+)
1100.5 4	C	(12+)		307.6 3	100	[E2]	792.9	(10+)
1160 5	B
1276.1 4	C	(9-)		482.5 7 747.5 3	35 11 100 15		792.9 528.69	(10+) (8+)
1545 5	B
1596 5	B
1670 5	B
1708 5	B
1756 5	B
1792 5	B
1893 5	B
1929 5	B
2010 5	B

J^π(level): From systematics and band assignments

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 1 - GS band
0	0+	14.1 h 1 % β^- = 100
45 1	(2+)		45 1 S		[E2]	0	0+
150.60 10	(4+)		105.6 1	100	[E2]	45	(2+)
313.19 14	(6+)		162.6 1	100	[E2]	150.60	(4+)
528.69 18	(8+)		215.5 1	100	[E2]	313.19	(6+)
792.9 3	(10+)		264.1 2	100	[E2]	528.69	(8+)
1100.5 4	(12+)		307.6 3	100	[E2]	792.9	(10+)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 2 - K^π=0-, octupole band
847.0 4	(3-)
944.7 3	(5-)		631.6 5 794.0 3	63 12 100 15		313.19 150.60	(6+) (4+)
1087.7 3	(7-)		558.9 7 774.5 3	24 11 100 14		528.69 313.19	(8+) (6+)
1276.1 4	(9-)		482.5 7 747.5 3	35 11 100 15		792.9 528.69	(10+) (8+)

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Conversion Coefficient	Additional Data
45	(2+)		45 1	[E2]	6.0×10²	α=6.0×10² 7, α(L)=4.4E2 6, α(M)=122 15, α(N)=33 4, α(O)=7.6 9, α(P)=1.22 15, α(Q)=0.0029 3, α(N+)=42 5
150.60	(4+)		105.6 1	[E2]	10.34	α=10.34, α(L)=7.53 11, α(M)=2.09 3, α(N)=0.567 9, α(O)=0.1304 20, α(P)=0.0214 4, α(Q)=8.98×10^-5 13, α(N+)=0.719 11
313.19	(6+)		162.6 1	[E2]	1.663	α=1.663, α(K)=0.205 3, α(L)=1.063 16, α(M)=0.294 5, α(N)=0.0798 12, α(O)=0.0184 3, α(P)=0.00305 5, α(Q)=2.23×10^-5 4, α(N+)=0.1012 15
528.69	(8+)		215.5 1	[E2]	0.569	α=0.569, α(K)=0.1367 20, α(L)=0.316 5, α(M)=0.0867 13, α(N)=0.0235 4, α(O)=0.00544 8, α(P)=0.000912 13, α(Q)=1.029×10^-5 15, α(N+)=0.0299 5
792.9	(10+)		264.1 2	[E2]	0.282	α=0.282, α(K)=0.0951 14, α(L)=0.1370 20, α(M)=0.0373 6, α(N)=0.01013 15, α(O)=0.00235 4, α(P)=0.000398 6, α(Q)=6.17×10^-6 9, α(N+)=0.01288 19
1100.5	(12+)		307.6 3	[E2]	0.174	α=0.174, α(K)=0.0716 11, α(L)=0.0754 11, α(M)=0.0204 3, α(N)=0.00553 8, α(O)=0.001286 19, α(P)=0.000220 4, α(Q)=4.29×10^-6 6, α(N+)=0.00704 11

E(level)	J^π(level)	T_1/2(level)	Comments
0	0+	14.1 h 1 % β^- = 100	%α<10^-10 (syst,1972El21), <10^-16 (calculated,1997Mo25). E(level): GS band.
45	(2+)		E(level): GS band.
150.60	(4+)		E(level): GS band.
313.19	(6+)		E(level): GS band.
528.69	(8+)		E(level): GS band.
792.9	(10+)		E(level): GS band.
847.0	(3-)		E(level): K^π=0-, octupole band.
944.7	(5-)		E(level): K^π=0-, octupole band.
1087.7	(7-)		E(level): K^π=0-, octupole band.
1100.5	(12+)		E(level): GS band.
1276.1	(9-)		E(level): K^π=0-, octupole band.