List of levels for 243PU

Authors: C.D. Nesaraja, E.A. Mccutchan | Citation: Nucl. Data Sheets 121, 695 (2014) | Cutoff date: 30-Sep-2013

Theoretical and Systematic studies:

2012Ni16: T_1/2 for α decay for transitions from ground state to favored rotational bands using Multicluster Channel Model

2012Ro34: T_1/2 and fission barriers with a generalized liquid drop model.

2012Sa31: T_1/2 from cluster decay using Coulomb and proximity potential model

2011Ad15,2010Ad17: One-quasiparticle levels using the microscopic-macroscopic modified TCSM, QPM and the self-consistent SHFB approaches

2011Ha06: Systematic analysis of experimental work in n=149 isotones

2011He12: Compilation of T_1/2, Jπ, and energy for long-lived isomers for Z|>82

2011Zh36: Systematics and calculated partial half-life of α decay to members of favored band. Accurate expressions are proposed for the evaluation of partial half-lives of these transitions based on microscopic quantum tunneling theory.

2010Ni02: Systematics and calculations of T_1/2 and relative intensities of α decay within the generalized density-dependent cluster model.

2006Sh19: Possible alternative parity bands using the cluster model features of reflection asymmetric states

2005Re16: Spontaneous fission half-lives

2002Si26: Summary of fission isomers

1971Ko31: Nonrotational-state energies using the Woods-Saxon potential.

1997Mo25: T_1/2 for ground-state α decay, pairing gaps and separation energies for neutrons and protons

1995Mo29: Ground-state deformation.

1983Ga20,1995Mo29: Ground-state mass

1972We09,1990Bh02: Spontaneously fissioning shape isomer

1982Ku09: Statistical properties of levels were studied. Calculated level spacings in the first and second deformed potential well

Other experimental studies:

2006Ma01: Thermal neutron cross section of ²⁴²Pu(n,γ)

2005LeZS: Reaction cross section of ²⁴²Pu(n,γ)

1987Gr13: ²⁴⁹Cf(¹³⁶Xe,x): Production cross-sections

1970Ot02: ²⁴²Pu(n,F) E(n)=500,620,730,990,1230 keV: fission-fragment angular distribution was measured by; data were analyzed with single-particle and with statistical model of the intermediate transition nucleus.

1970Br32: ²⁴²Pu(d,pF), ²⁴²Pu(t,dF): Measured fission-fragment angular correlations and deduced and fission probabilities

Q-value: S(2n)=11344 3; S(2p)=13019 syst 298 (2012Wa38)

E(level): From least square fit of adopted γ energies and levels observed in (d,p), (d,t) reactions except as noted.

E(level): In addition to the ⁴⁶Ns isomer, 1974Br05 suggests the existence of a longer-lived isomer. From systematics they predict T_1/2≈10 μs. α spontaneously fissioning isomer with half-life in the 10-μs range was searched for, but not observed, by 1976Br38 through ²⁴⁴Pu(n,2n) E(n)=14 MeV reaction.

J^π(level): Assignments derived from (d,p), (d,t) reactions are based on ratios of cross sections measured at 90|’ and 150|’; on ratios of (d,p) to (d,t) cross sections; on comparison of relative cross sections with those expected "signatures " for various band members; and on systematics of Nilsson orbital. Jπ assignments from other reactions are indicated in the comments and in the # footnote

M(γ): From ²⁴⁷Cm α decay. Multipolarities in square brackets are from level scheme.

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Conversion Coefficient	Additional Data
124.8	11/2+		125	[E2]	5.81	α=5.81, α(K)=0.1664 24, α(L)=4.09 6, α(M)=1.146 16, α(N)=0.315 5, α(O)=0.0743 11, α(P)=0.01191 17, α(Q)=5.28×10^-5 8
207.1	13/2+		149.0	[E2]	2.75	α=2.75, α(K)=0.197 3, α(L)=1.85 3, α(M)=0.518 8, α(N)=0.1423 20, α(O)=0.0336 5, α(P)=0.00542 8, α(Q)=2.98×10^-5 5
287.46	5/2+		229.3 2	[E2]	0.518	α=0.518, α(K)=0.1223 18, α(L)=0.288 5, α(M)=0.0797 12, α(N)=0.0219 4, α(O)=0.00519 8, α(P)=0.000856 13, α(Q)=8.66×10^-6 13
287.46	5/2+		287.4 3	M1	1.344	α=1.344, α(K)=1.063 16, α(L)=0.211 3, α(M)=0.0513 8, α(N)=0.01396 20, α(O)=0.00347 5, α(P)=0.000660 10, α(Q)=4.31×10^-5 7
333.21	7/2+		275.1 2	[M1]	1.517	α=1.517, α(K)=1.200 17, α(L)=0.239 4, α(M)=0.0580 9, α(N)=0.01577 23, α(O)=0.00392 6, α(P)=0.000746 11, α(Q)=4.87×10^-5 7
333.21	7/2+		333.0 10	[M1]	0.895	α=0.895 15, α(K)=0.708 12, α(L)=0.1403 23, α(M)=0.0341 6, α(N)=0.00927 16, α(O)=0.00231 4, α(P)=0.000439 8, α(Q)=2.86×10^-5 5
383.64	(1/2+)	0.33 µs 3	96.2 2	[E2]	18.9	B(E2)(W.u.)=0.116 11, α=18.9 4, α(L)=13.72 24, α(M)=3.84 7, α(N)=1.056 18, α(O)=0.249 5, α(P)=0.0396 7, α(Q)=0.0001353 22
402.6	9/2-		278.0 8	[E1]	0.0488	α=0.0488 8, α(K)=0.0385 6, α(L)=0.00777 12, α(M)=0.00188 3, α(N)=0.000509 8, α(O)=0.0001242 20, α(P)=2.23×10^-5 4, α(Q)=1.143E-6 18
	9/2-		344.5 5	[E1]	0.0307	α=0.0307, α(K)=0.0244 4, α(L)=0.00476 7, α(M)=0.001152 17, α(N)=0.000311 5, α(O)=7.62×10^-5 11, α(P)=1.383E-5 20, α(Q)=7.41E-7 11
	9/2-		402.6 3	E1	0.0222	α=0.0222, α(K)=0.01774 25, α(L)=0.00338 5, α(M)=0.000816 12, α(N)=0.000221 4, α(O)=5.41×10^-5 8, α(P)=9.88E-6 14, α(Q)=5.46E-7 8

Q(β-)=580 keV 3	S(n)= 5034 keV 3	S(p)= 6.95×10³ keV 20	Q(α)= 4757 keV 3
Reference: 2012WA38

References:
A	²⁴⁷Cm α decay	B	²⁴³Np β^- decay
C	²⁴⁴Pu(²⁰⁸Pb,209PBG)	D	²⁴²Pu(d,p), ²⁴⁴Pu(d,t)
E	²⁴²Pu(d,pγ) E=16 MeV	F	²⁴²Pu(n,γ):PRIMARY γ’S
G	²⁴²Pu(n,γ):SECONDARY γ’S

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 E F G	7/2+	4.956 h 3 % β^- = 100
58.13 22	A C D G	9/2+		58.1S			0.0	7/2+
124.8 7	A C D	11/2+		125	100	[E2]	0.0	7/2+
207.1 11	C D	13/2+		149.0	100	[E2]	58.13	9/2+
287.46 19	A B D E G	5/2+		229.3 2 287.4 3	1.8 4 100 14	[E2] M1	58.13 0.0	9/2+ 7/2+
298.8 12	C	15/2+		174	100		124.8	11/2+
333.21 24	A D G	7/2+		275.1 2 333.0 10	100 19 64 28	[M1] [M1]	58.13 0.0	9/2+ 7/2+
383.64 25	D E F G	(1/2+)	0.33 µs 3	96.2 2	100	[E2]	287.46	5/2+
≈388	D	(9/2+)
392.1 3	F G	(3/2+)
402.6 3	A G	9/2-		278.0 8 344.5 5 402.6 3	4.7 10 ≈1.8 100 9	[E1] [E1] E1	124.8 58.13 0.0	11/2+ 9/2+ 7/2+
404.0 15	C	17/2+		196.9	100		207.1	13/2+
446.8 3	F G	(5/2+)
450.1 15	D	(7/2+)
455 5	A	11/2-
466.7 15	D	(11/2+)
518.9 16	C	19/2+		220.1	100		298.8	15/2+
536.6 15	D	(13/2+)
564.5 15	D	(9/2+)
595.3 15	D	(15/2-)
625.7 3	D G	(1/2+)		233.9 6 242.0 2	5.0 16 100 19		392.1 383.64	(3/2+) (1/2+)
626 2	D	(9/2+)
646.8 18	C	21/2+		242.8	100		404.0	17/2+
653.8 4	D F G	(3/2+)		261.7 3	100		392.1	(3/2+)
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
677.2 5	D F G	(5/2+)		284.4 3 ? 343.9 2 ?	100 40 <130		392.1 333.21	(3/2+) 7/2+
704.0 3	D F G	(3/2-)		416.5 2	100		287.46	5/2+
734.1 20	D
741.8 15	D	(7/2+)
783.8 19	C	23/2+		264.9	100		518.9	19/2+
790.7 3	D F G	(3/2-)		343.9 2 407.1 3	<139 100 12		446.8 383.64	(5/2+) (1/2+)
809.5 3	F G	1/2+,3/2		426.0 6 522.1 3	≤29 ≤100		383.64 287.46	(1/2+) 5/2+
813.76 17	D F G	3/2+		159.2 13 480.6 3 526.2 3 813.8 2	27 11 31 4 100 11 96 10		653.8 333.21 287.46 0.0	(3/2+) 7/2+ 5/2+ 7/2+
834.4 15	D	(7/2-)
845.5 4	D G	(5/2+)		558.0 3 787.5 8 844.3 8 ?	100 11 34 17 ≤26		287.46 58.13 0.0	5/2+ 9/2+ 7/2+
873.7 10	D G	(1/2-)		219.9 3 ?	100		653.8	(3/2+)
884 3	D
895.6 15	D	(7/2+)
905.7 4	D F G	(1/2-)		513.6 3 522.1 3	100 12 ≤34		392.1 383.64	(3/2+) (1/2+)
920.6 15	D	(11/2-)
933.0 21	C	25/2+		286.2	100		646.8	21/2+
948.1 3	D F G	(3/2-)		501.2 3 555.7 5 564.7 4	59 7 51 17 100 11		446.8 392.1 383.64	(5/2+) (3/2+) (1/2+)
954 2	D	(9/2+)
981.0 4	D G	(5/2+)		533.9 4 589.1 3 648.8 8 ? 693.5 7	80 16 100 12 ≤43 32 12		446.8 392.1 333.21 287.46	(5/2+) (3/2+) 7/2+ 5/2+
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
1044 2	D	(11/2+)
1080 2	D	(9/2+)
1091.3 21	C	27/2+		307.5	100		783.8	23/2+
1114 3	D
1130.2 3	D F G	(1/2+,3/2)		426.0 6 683.4 4 738.2 3 746.4 3	≤38 ≤53 79 9 100 11		704.0 446.8 392.1 383.64	(3/2-) (5/2+) (3/2+) (1/2+)
1145 3	D
1176.5 3	D F G	3/2+,5/2+		385.7 3 551.7 5 ? 730.1 7 844.3 8 ? 889.1 6 1176.5 5	13.5 23 6.7 18 5.4 18 ≤9.9 100 14 52 11		790.7 625.7 446.8 333.21 287.46 0.0	(3/2-) (1/2+) (5/2+) 7/2+ 5/2+ 7/2+
1197 3	D
1213 2	D G	(5/2-)		879.8 10 ? 925.3 10 ?	75 35 100 50		333.21 287.46	7/2+ 5/2+
1233 3	D
1243 3	D
1261.1 23	C	29/2+		328.1	100		933.0	25/2+
1265 3	D
1286 3	D
1299 2	D
1301.7 5	F G	1/2,3/2		648.8 8 ? 676.0 3 918.0 10	≤37 100 10 43 16		653.8 625.7 383.64	(3/2+) (1/2+) (1/2+)
1324 2	D
1354 2	D
1359 3	D
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
1367.9 6	F G	1/2,3/2		663.9 6 714.7 11 ? 976.0 12	100 16 31 16 84 42		704.0 653.8 392.1	(3/2-) (3/2+) (3/2+)
1387.4 4	D F G	3/2+		439.4 3 683.4 4 1053.8 10	93 14 ≤107 100 38		948.1 704.0 333.21	(3/2-) (3/2-) 7/2+
1403 3	D
1420.5 6	D F G	(3/2+)		716.9 5 ? 1028.4 10 ? 1087.1 8 ?	61 13 ≈39 100 52		704.0 392.1 333.21	(3/2-) (3/2+) 7/2+
1434.7 4	F G	1/2+,3/2		625.2 2 ? 644.2 4 757.5 4 781.1 12 ? 1042.1 5	100 11 38 9 44 8 25 17 73 11		809.5 790.7 677.2 653.8 392.1	1/2+,3/2 (3/2-) (5/2+) (3/2+) (3/2+)
1438.8 24	C	31/2+		347.5	100		1091.3	27/2+
1444 3	D
1465 3	D
1491.2 8	D F	1/2-,3/2-
1516.6 8	F G	(3/2-)		838.7 5 ?	100		677.2	(5/2+)
1627.6 25	C	33/2+		366.5	100		1261.1	29/2+
1.7E+3 3			46 ns 13 % SF = 100
1824 3	C	35/2+		384.9	100		1438.8	31/2+
2030 3	C	37/2+		402.4	100		1627.6	33/2+
2243 3	C	39/2+		419.1	100		1824	35/2+
2465 3	C	41/2+		434.9	100		2030	37/2+
2692 3	C	43/2+		449.2	100		2243	39/2+
2929 3	C	45/2+		463.6	100		2465	41/2+
3167 3	C	47/2+		475.0	100		2692	43/2+
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
3413 4	C	49/2+		484.5	100		2929	45/2+
3656 4	C	51/2+		488.6	100		3167	47/2+
3901 4	C	53/2+		488.2	100		3413	49/2+
4142 4	C	55/2+		486.5	100		3656	51/2+
4384 4	C	57/2+		482.5	100		3901	53/2+
4625 4 ?	C	(59/2+)		482.9?	100		4142	55/2+
5034.2 26 S	F	1/2+		3517.4 3543.0 3599 3614 3646.8 3666.4 3733 3857.5 3903.9 4085.5 4128.6 4220.6 4225.0 4243.0 4330.0 4356.9 4381.2 4587.4 4641.9 4650.9	92 14 100 ≈93.3 77 16 84 13 25.8 40 23.8 60 5.2 18 32.9 50 60.1 91 48.0 73 76 12 39.7 79 35.3 54 86 13 12.7 20 18.1 28 16.5 26 17.5 28 6.2 12		1516.6 1491.2 1434.7 1420.5 1387.4 1367.9 1301.7 1176.5 1130.2 948.1 905.7 813.76 809.5 790.7 704.0 677.2 653.8 446.8 392.1 383.64	(3/2-) 1/2-,3/2- 1/2+,3/2 (3/2+) 3/2+ 1/2,3/2 1/2,3/2 3/2+,5/2+ (1/2+,3/2) (3/2-) (1/2-) 3/2+ 1/2+,3/2 (3/2-) (3/2-) (5/2+) (3/2+) (5/2+) (3/2+) (1/2+)

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 1 - 7/2[624] band.
0.0	7/2+	4.956 h 3 % β^- = 100
58.13 22	9/2+		58.1S			0.0	7/2+
124.8 7	11/2+		125	100	[E2]	0.0	7/2+
207.1 11	13/2+		149.0	100	[E2]	58.13	9/2+
298.8 12	15/2+		174	100		124.8	11/2+
404.0 15	17/2+		196.9	100		207.1	13/2+
518.9 16	19/2+		220.1	100		298.8	15/2+
646.8 18	21/2+		242.8	100		404.0	17/2+
783.8 19	23/2+
933.0 21	25/2+
1091.3 21	27/2+		307.5	100		783.8	23/2+
1261.1 23	29/2+		328.1	100		933.0	25/2+
1438.8 24	31/2+
1627.6 25	33/2+
1824 3	35/2+
2030 3	37/2+
2243 3	39/2+		419.1	100		1824	35/2+
2465 3	41/2+
2692 3	43/2+
2929 3	45/2+
3167 3	47/2+		475.0	100		2692	43/2+
3413 4	49/2+
3656 4	51/2+		488.6	100		3167	47/2+
3901 4	53/2+		488.2	100		3413	49/2+
4142 4	55/2+		486.5	100		3656	51/2+
4384 4	57/2+		482.5	100		3901	53/2+
4625 4	(59/2+)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 2 - 5/2[622] band.
287.46 19	5/2+
333.21 24	7/2+		275.1 2 333.0 10	100 19 64 28	[M1] [M1]	58.13 0.0	9/2+ 7/2+
≈388	(9/2+)
466.7 15	(11/2+)
536.6 15	(13/2+)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 3 - 1/2[631] band.
383.64 25	(1/2+)	0.33 µs 3
392.1 3	(3/2+)
446.8 3	(5/2+)
450.1 15	(7/2+)
564.5 15	(9/2+)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 4 - 9/2[734] band.
402.6 3	9/2-
455 5	11/2-
595.3 15	(15/2-)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 5 - 1/2[620] band.
625.7 3	(1/2+)
653.8 4	(3/2+)		261.7 3	100		392.1	(3/2+)
677.2 5	(5/2+)		284.4 3 ? 343.9 2 ?	100 40 <130		392.1 333.21	(3/2+) 7/2+
741.8 15	(7/2+)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 6 - 7/2[613] band.
626 2	(9/2+)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 7 - K=3/2 band.
704.0 3	(3/2-)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 8 - 1/2[761] band.
790.7 3	(3/2-)
834.4 15	(7/2-)
873.7 10	(1/2-)		219.9 3 ?	100		653.8	(3/2+)
920.6 15	(11/2-)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 9 - 3/2[622] band.
813.76 17	3/2+
845.5 4	(5/2+)		558.0 3 787.5 8 844.3 8 ?	100 11 34 17 ≤26		287.46 58.13 0.0	5/2+ 9/2+ 7/2+
895.6 15	(7/2+)
954 2	(9/2+)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 10 - 1/2[501] band.
905.7 4	(1/2-)
948.1 3	(3/2-)		501.2 3 555.7 5 564.7 4	59 7 51 17 100 11		446.8 392.1 383.64	(5/2+) (3/2+) (1/2+)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 11 - 3/2[631] band.
981.0 4	(5/2+)
1080 2	(9/2+)

E(level)	J^π(level)	T_1/2(level)	Comments
0.0	7/2+	4.956 h 3 % β^- = 100	Intrinsic Q was estimated by 1985Ge08 as 11.6 5 from relative isotope shift, deduced from their measured isotope shifts for neighboring even Pu isotopes. E(level): Intrinsic Q was estimated by 1985Ge08 as 11.6 5 from relative isotope shift, deduced from their measured isotope shifts for neighboring even Pu isotopes. 7/2[624] band.
58.13	9/2+		E(level): 7/2[624] band.
124.8	11/2+		E(level): 7/2[624] band.
207.1	13/2+		E(level): 7/2[624] band.
287.46	5/2+		E(level): 5/2[622] band.
298.8	15/2+		E(level): 7/2[624] band. J^π(level): From band member assignments in ²⁴⁴Pu(²⁰⁸Pb,²⁰⁹Pbγ).
333.21	7/2+		E(level): 5/2[622] band.
383.64	(1/2+)	0.33 µs 3	E(level): 1/2[631] band.
388	(9/2+)		E(level): 5/2[622] band.
392.1	(3/2+)		E(level): 1/2[631] band.
402.6	9/2-		E(level): 9/2[734] band.
404.0	17/2+		E(level): 7/2[624] band.
446.8	(5/2+)		E(level): 1/2[631] band.
450.1	(7/2+)		E(level): 1/2[631] band.
455	11/2-		E(level): 9/2[734] band.
466.7	(11/2+)		E(level): 5/2[622] band.
518.9	19/2+		E(level): 7/2[624] band. J^π(level): From band member assignments in ²⁴⁴Pu(²⁰⁸Pb,²⁰⁹Pbγ).
536.6	(13/2+)		E(level): 5/2[622] band.
564.5	(9/2+)		E(level): 1/2[631] band.
595.3	(15/2-)		E(level): 9/2[734] band.
625.7	(1/2+)		E(level): 1/2[620] band.
626	(9/2+)		E(level): 7/2[613] band.
646.8	21/2+		E(level): 7/2[624] band. J^π(level): From band member assignments in ²⁴⁴Pu(²⁰⁸Pb,²⁰⁹Pbγ).
653.8	(3/2+)		E(level): 1/2[620] band.
677.2	(5/2+)		E(level): 1/2[620] band.
E(level)	J^π(level)	T_1/2(level)	Comments
704.0	(3/2-)		E(level): K=3/2 band.
741.8	(7/2+)		E(level): 1/2[620] band.
783.8	23/2+		E(level): 7/2[624] band.
790.7	(3/2-)		E(level): 1/2[761] band.
813.76	3/2+		E(level): 3/2[622] band.
834.4	(7/2-)		E(level): 1/2[761] band.
845.5	(5/2+)		E(level): 3/2[622] band.
873.7	(1/2-)		E(level): 1/2[761] band.
895.6	(7/2+)		E(level): 3/2[622] band.
905.7	(1/2-)		E(level): 1/2[501] band.
920.6	(11/2-)		E(level): 1/2[761] band.
933.0	25/2+		E(level): 7/2[624] band. J^π(level): From band member assignments in ²⁴⁴Pu(²⁰⁸Pb,²⁰⁹Pbγ).
948.1	(3/2-)		E(level): 1/2[501] band.
954	(9/2+)		E(level): 3/2[622] band.
981.0	(5/2+)		E(level): 3/2[631] band.
1080	(9/2+)		E(level): 3/2[631] band.
1091.3	27/2+		E(level): 7/2[624] band. J^π(level): From band member assignments in ²⁴⁴Pu(²⁰⁸Pb,²⁰⁹Pbγ).
1261.1	29/2+		E(level): 7/2[624] band. J^π(level): From band member assignments in ²⁴⁴Pu(²⁰⁸Pb,²⁰⁹Pbγ).
1420.5	(3/2+)		XREF: d(1419).
1438.8	31/2+		E(level): 7/2[624] band. J^π(level): From band member assignments in ²⁴⁴Pu(²⁰⁸Pb,²⁰⁹Pbγ).
1627.6	33/2+		E(level): 7/2[624] band. J^π(level): From band member assignments in ²⁴⁴Pu(²⁰⁸Pb,²⁰⁹Pbγ).
1.7E+3		46 ns 13 % SF = 100	No other decay observed. Delayed gammas from this isomer were searched for by 1974Br05 following ²⁴²Pu(n,Fγ) reaction. No gammas were found from the isomer. E(level): No other decay observed. Delayed gammas from this isomer were searched for by 1974Br05 following ²⁴²Pu(n,Fγ) reaction. No gammas were found from the isomer.
1824	35/2+		E(level): 7/2[624] band. J^π(level): From band member assignments in ²⁴⁴Pu(²⁰⁸Pb,²⁰⁹Pbγ).
2030	37/2+		E(level): 7/2[624] band. J^π(level): From band member assignments in ²⁴⁴Pu(²⁰⁸Pb,²⁰⁹Pbγ).
2243	39/2+		E(level): 7/2[624] band. J^π(level): From band member assignments in ²⁴⁴Pu(²⁰⁸Pb,²⁰⁹Pbγ).
E(level)	J^π(level)	T_1/2(level)	Comments
2465	41/2+		E(level): 7/2[624] band. J^π(level): From band member assignments in ²⁴⁴Pu(²⁰⁸Pb,²⁰⁹Pbγ).
2692	43/2+		E(level): 7/2[624] band. J^π(level): From band member assignments in ²⁴⁴Pu(²⁰⁸Pb,²⁰⁹Pbγ).
2929	45/2+		E(level): 7/2[624] band. J^π(level): From band member assignments in ²⁴⁴Pu(²⁰⁸Pb,²⁰⁹Pbγ).
3167	47/2+		E(level): 7/2[624] band. J^π(level): From band member assignments in ²⁴⁴Pu(²⁰⁸Pb,²⁰⁹Pbγ).
3413	49/2+		E(level): 7/2[624] band. J^π(level): From band member assignments in ²⁴⁴Pu(²⁰⁸Pb,²⁰⁹Pbγ).
3656	51/2+		E(level): 7/2[624] band. J^π(level): From band member assignments in ²⁴⁴Pu(²⁰⁸Pb,²⁰⁹Pbγ).
3901	53/2+		E(level): 7/2[624] band. J^π(level): From band member assignments in ²⁴⁴Pu(²⁰⁸Pb,²⁰⁹Pbγ).
4142	55/2+		E(level): 7/2[624] band. J^π(level): From band member assignments in ²⁴⁴Pu(²⁰⁸Pb,²⁰⁹Pbγ).
4384	57/2+		E(level): 7/2[624] band. J^π(level): From band member assignments in ²⁴⁴Pu(²⁰⁸Pb,²⁰⁹Pbγ).
4625	(59/2+)		E(level): 7/2[624] band. J^π(level): From band member assignments in ²⁴⁴Pu(²⁰⁸Pb,²⁰⁹Pbγ).

E(level)	E(gamma)	Comments
58.13	58.1	E(γ): γ transition has not been observed. Eγ is from level energy difference.
677.2	343.9	I(γ): Branching of this doubly-placed gamma has not been determined experimentally.
790.7	343.9	I(γ): Branching of this doubly-placed gamma has not been determined experimentally.
809.5	426.0	I(γ): Branching of this doubly-placed gamma has not been determined experimentally.
809.5	522.1	I(γ): Branching of this doubly-placed gamma has not been determined experimentally.
845.5	844.3	I(γ): Branching of this doubly-placed gamma has not been determined experimentally.
905.7	522.1	I(γ): Branching of this doubly-placed gamma has not been determined experimentally.
981.0	648.8	I(γ): Branching of this doubly-placed gamma has not been determined experimentally.
1130.2	426.0	I(γ): Branching of this doubly-placed gamma has not been determined experimentally.
1130.2	683.4	I(γ): Branching of this doubly-placed gamma has not been determined experimentally.
1176.5	844.3	I(γ): Branching of this doubly-placed gamma has not been determined experimentally.
1301.7	648.8	I(γ): Branching of this doubly-placed gamma has not been determined experimentally.
1387.4	683.4	I(γ): Branching of this doubly-placed gamma has not been determined experimentally.