List of levels for 241AM

Author: C.D. Nesaraja | Citation: Nucl. Data Sheets 130, 183 (2015) | Cutoff date: 30-Sep-2015

Experimental Studies

2011He12: Determined β shape function and activity of ²⁴¹Pu β decay. Resolved the difference between efficiency tracing method and the triple-to-double coincidence ratio (TDCR) method using a shape function derived from experimental data

Theoretical/Systematical Studies:

2015Er03: Calculation of fission probabilities with a dynamic statistical approach

2013Zd01: T_1/2 for α decay calculated with phenomenological model based on Gamow theory with WKB approximation for Coulomb barrier penetration.

2013Af01: Calculated pairing and rotational properties in the density functional framework

2013Ni13: Study of α decay of g.s Bk to rotational bands using the multichannel cluster model (MCCM)

2013Ta07: Partial T_1/2 for cluster decay of ²⁴¹Am using semi-empirical model

2013Zd02: Coupled-channel calculation to describe α transition to several rotational bands in ²⁴¹Am

2012Ba35, 2011Sh13: Calculated T_1/2 of cluster decay for ²⁴¹Am using a generalized liquid-drop model

2012Ni16: α decay branching ratio and T_1/2 for transitions from ground state to favored rotational bands using Multichannel Cluster Model

2012Sa05, 2012Sa31: Calculated cluster decay half-lives using the Coulomb and Proximity Potential Model (CPPM)

2012Ta10: Partial T_1/2, Q(β^-)values, branching ratios using a semi-empirical with the one-parameter model dependence on cluster radius

2011He12: Compilation of longest lived known in nuclides with Z|> 82 with half-life, spin, excitation energy, and primary reference

1990Bh02: Calculated T_1/2(SF).

1982Li02: Calculated energy band heads, magnetic moments, B(E2) and B(M1) using the rotor plus quasiparticle approximation

1992Gu10, 1990Sh01, 1989Ba20,1989Si13, 1989Sh37, 1989Ma43, 1988Bl11, 1986Po15, 1987GrZO, 1987Po08, 1987Sh04, 1988Ba01: Theoretical calculations and discussions on decays by heavy ions such as ³⁴Si, ²⁸Si, and neon isotopes

1988Io05: Decay by ion emission was considered and compared with SF decay

1983Penetration parameters for the 32.639- and 41.176-keV transitions have been calculated by 1983Bh10 as a function of nuclear deformation

1977Ch27: Calculated Proton occupation probabilities for various Nilsson states

1976Ch22, 1971Ga20: Calculations of excited-state energies and configurations

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Mixing Ratio	Conversion Coefficient	Additional Data
41.176	7/2-		41.176 3	M1+E2	0.486 23	295	α=295 17, α(L)=216 13, α(M)=59 4, α(N)=16.2 10, α(O)=3.90 23, α(P)=0.64 4, α(Q)=0.01151 20
205.883	5/2+		164.8 2	[E1]		0.1635	α=0.1635, α(K)=0.1255 18, α(L)=0.0285 4, α(M)=0.00699 10, α(N)=0.00189 3, α(O)=0.000463 7, α(P)=8.08×10^-5 12, α(Q)=3.52E-6 5
205.883	5/2+		205.879 13	E1		0.0980	α=0.0980, α(K)=0.0761 11, α(L)=0.01647 23, α(M)=0.00402 6, α(N)=0.001091 16, α(O)=0.000268 4, α(P)=4.75×10^-5 7, α(Q)=2.19E-6 3
235.2	7/2+		194.0 5	[E1]		0.1123	α=0.1123 17, α(K)=0.0870 14, α(L)=0.0190 3, α(M)=0.00466 8, α(N)=0.001262 20, α(O)=0.000309 5, α(P)=5.46×10^-5 9, α(Q)=2.48E-6 4
471.810	3/2-		265.922 12	[E1]		0.0552	α=0.0552, α(K)=0.0433 6, α(L)=0.00894 13, α(M)=0.00218 3, α(N)=0.000590 9, α(O)=0.0001456 21, α(P)=2.62×10^-5 4, α(Q)=1.284E-6 18
	3/2-		430.634 20	E2		0.0805	α=0.0805, α(K)=0.0416 6, α(L)=0.0285 4, α(M)=0.00767 11, α(N)=0.00211 3, α(O)=0.000514 8, α(P)=8.88×10^-5 13, α(Q)=2.08E-6 3
	3/2-		471.805 20	M1+E2		0.22	α=0.22 16, α(K)=0.17 14, α(L)=0.040 20, α(M)=0.010 5, α(N)=0.0028 12, α(O)=0.0007 4, α(P)=0.00013 7, α(Q)=7.E-6 6
504.449	5/2-		32.639 3	M1+E2	0.124 4	220	α=220 5, α(L)=163 4, α(M)=41.4 10, α(N)=11.4 3, α(O)=2.82 6, α(P)=0.513 11, α(Q)=0.0257 4
	5/2-		298.57 5	[E1]		0.0429	α=0.0429, α(K)=0.0338 5, α(L)=0.00684 10, α(M)=0.001662 24, α(N)=0.000451 7, α(O)=0.0001114 16, α(P)=2.02×10^-5 3, α(Q)=1.015E-6 15
	5/2-		410.8 1	[E2]		0.0910	α=0.0910, α(K)=0.0452 7, α(L)=0.0335 5, α(M)=0.00905 13, α(N)=0.00249 4, α(O)=0.000606 9, α(P)=0.0001044 15, α(Q)=2.31×10^-6 4
	5/2-		463.273 20	M1+E2		0.23	α=0.23 17, α(K)=0.18 14, α(L)=0.042 21, α(M)=0.011 5, α(N)=0.0029 13, α(O)=0.0007 4, α(P)=0.00013 7, α(Q)=7.E-6 6
	5/2-		504.45 3	M1+E2		0.18	α=0.18 13, α(K)=0.14 11, α(L)=0.033 17, α(M)=0.008 4, α(N)=0.0023 11, α(O)=0.0006 3, α(P)=0.00011 6, α(Q)=6.E-6 5
623.10	(1/2+)		151.4 4	[E1]		0.199	α=0.199, α(K)=0.1519 24, α(L)=0.0353 6, α(M)=0.00866 14, α(N)=0.00234 4, α(O)=0.000572 9, α(P)=9.92×10^-5 16, α(Q)=4.22E-6 7
	(1/2+)		417.24 4	E2		0.0874	α=0.0874, α(K)=0.0440 7, α(L)=0.0318 5, α(M)=0.00857 12, α(N)=0.00236 4, α(O)=0.000573 8, α(P)=9.89×10^-5 14, α(Q)=2.23E-6 4
	(1/2+)		623.1 3	[M2]		0.433	α=0.433, α(K)=0.322 5, α(L)=0.0821 12, α(M)=0.0207 3, α(N)=0.00571 8, α(O)=0.001435 21, α(P)=0.000272 4, α(Q)=1.650×10^-5 24
636.861	3/2-		132.413 7	M1+E2	0.061 +13-17	12.94	α=12.94, α(K)=10.15 15, α(L)=2.10 3, α(M)=0.512 8, α(N)=0.1401 20, α(O)=0.0353 5, α(P)=0.00674 10, α(Q)=0.000427 6
	3/2-		165.049 8	M1+E2	0.22 3	6.73	α=6.73 12, α(K)=5.24 10, α(L)=1.123 16, α(M)=0.276 4, α(N)=0.0755 11, α(O)=0.0189 3, α(P)=0.00359 5, α(Q)=0.000218 4
	3/2-		430 1	[E1]		0.0200	α=0.0200, α(K)=0.01598 24, α(L)=0.00306 5, α(M)=0.000739 11, α(N)=0.000201 3, α(O)=4.99×10^-5 8, α(P)=9.17E-6 14, α(Q)=4.97E-7 8
	3/2-		595.8 3	[E2]		0.0373	α=0.0373, α(K)=0.0236 4, α(L)=0.01010 15, α(M)=0.00265 4, α(N)=0.000728 11, α(O)=0.000178 3, α(P)=3.17×10^-5 5, α(Q)=1.050E-6 15
	3/2-		636.88 3	M1+E2	0.59 18	0.133	α=0.133 16, α(K)=0.104 13, α(L)=0.0217 21, α(M)=0.0053 5, α(N)=0.00145 14, α(O)=0.00036 4, α(P)=6.9×10^-5 7, α(Q)=4.2E-6 5
652.089	(1/2)-		15.228 2	M1+E2	0.0302 14	437	α=437 8, α(M)=322 6, α(N)=88.3 15, α(O)=22.1 4, α(P)=4.16 7, α(Q)=0.249 4
	(1/2)-		29.02 5	[E1]		3.42	α=3.42, α(L)=2.54 4, α(M)=0.663 10, α(N)=0.177 3, α(O)=0.0404 6, α(P)=0.00542 8, α(Q)=0.0001288 19
	(1/2)-		147.67 3	[E2]		3.08	α=3.08, α(K)=0.185 3, α(L)=2.10 3, α(M)=0.589 9, α(N)=0.1629 23, α(O)=0.0390 6, α(P)=0.00631 9, α(Q)=3.40×10^-5 5
	(1/2)-		180.277 8	M1(+E2)	0.25 LT	5.31	α=5.31 14, α(K)=4.15 14, α(L)=0.868 13, α(M)=0.212 4, α(N)=0.0581 9, α(O)=0.01460 21, α(P)=0.00278 4, α(Q)=0.000172 6
	(1/2)-		652.1 4	[E2]		0.0306	α=0.0306, α(K)=0.0201 3, α(L)=0.00777 11, α(M)=0.00202 3, α(N)=0.000555 8, α(O)=0.0001364 20, α(P)=2.44×10^-5 4, α(Q)=8.76E-7 13
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Mixing Ratio	Conversion Coefficient	Additional Data
653.23	3/2+		447.35 4	M1+E2	0.77 LT	0.37	α=0.37 7, α(K)=0.29 6, α(L)=0.061 9, α(M)=0.0149 19, α(N)=0.0041 6, α(O)=0.00102 14, α(P)=0.00019 3, α(Q)=1.17×10^-5 23
653.23	3/2+		653.2 2	[E1]		0.00898	α=0.00898, α(K)=0.00724 11, α(L)=0.001313 19, α(M)=0.000316 5, α(N)=8.57×10^-5 12, α(O)=2.14E-5 3, α(P)=3.99E-6 6, α(Q)=2.32E-7 4
670.24	3/2+		464.36 8	M1+E2	1.5 +17-5	0.17	α=0.17 8, α(K)=0.12 6, α(L)=0.034 9, α(M)=0.0088 21, α(N)=0.0024 6, α(O)=0.00059 15, α(P)=0.00011 3, α(Q)=5.1×10^-6 24
670.24	3/2+		670.2 2	[E1]		0.00856	α=0.00856, α(K)=0.00691 10, α(L)=0.001250 18, α(M)=0.000300 5, α(N)=8.16×10^-5 12, α(O)=2.04E-5 3, α(P)=3.80E-6 6, α(Q)=2.22E-7 4

Q(β-)=-767.4 keV 12	S(n)= 6647 keV 14	S(p)= 4479.96 keV 13	Q(α)= 5637.82 keV 12
Reference: 2012WA38

References:
A	²⁴⁵Bk α decay	B	²⁴¹Pu β^- decay
C	²⁴¹Am(²⁰⁹Bi,²⁰⁹Bi’γ)	D	²⁴¹Cm ε decay
E	²⁴³Am(p,t)	F	²⁴⁰Pu(α,t)

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	5/2-	432.6 y 6 % α = 100 % SF = 3.6×10^-10 9
41.176 3	A C D E	7/2-		41.176 3		M1+E2	0.0	5/2-
93.70 10	A C D E F	9/2-
157.50 18	A C E F	11/2-		116.4 2			41.176	7/2-
205.883 10	A C D	5/2+		164.8 2 205.879 13	16 3 100 6	[E1] E1	41.176 0.0	7/2- 5/2-
233.68 20	C E	13/2-		139.9 2	100		93.70	9/2-
235.2 5	A F	7/2+		194.0 5	100	[E1]	41.176	7/2-
239?	A
270?	A
273.2 5	A C F	9/2+		179.5 5	100		93.70	9/2-
319.8 10	A C F	11/2+
319.82 23	C	15/2-		162.4 2	100		157.50	11/2-
381.1 5	A C F	13/2+		108.0 5 ? 147.6 5	100 100		273.2 233.68	9/2+ 13/2-
418.18 23	C	17/2-		98.0 5 184.4 2	4.6 23 100 43		319.82 233.68	15/2- 13/2-
453.1 9	C	15/2+		133.3 5			319.8	11/2+
459?	A
471.810 9	A C D F	3/2-		265.922 12 430.634 20 471.805 20	0.56 6 5.7 3 100 4	[E1] E2 M1+E2	205.883 41.176 0.0	5/2+ 7/2- 5/2-
495	A
504.449 9	A C D F	5/2-		32.639 3 298.57 5 410.8 1 463.273 20 504.45 3	16.5 6 6.4 16 7.0 7 100 7 48 3	M1+E2 [E1] [E2] M1+E2 M1+E2	471.810 205.883 93.70 41.176 0.0	3/2- 5/2+ 9/2- 7/2- 5/2-
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
525.67 25	C	19/2-		107.2 2 206.0 2	13 5 100		418.18 319.82	17/2- 15/2-
530.9 4	C	17/2+		149.9 5 211.0 5	100 50 10 5		381.1 319.82	13/2+ 15/2-
543?	A
550.4 4	A C F	7/2-		77.0 5 ? 455.9 5 510.0 5			471.810 93.70 41.176	3/2- 9/2- 7/2-
623.10 4	D F	(1/2+)		151.4 4 417.24 4 623.1 3	≈3 100 6 1.8 5	[E1] E2 [M2]	471.810 205.883 0.0	3/2- 5/2+ 5/2-
625.2 5	C	9/2-		120.8 5			504.449	5/2-
629.8 7	C	19/2+		176.7 5			453.1	15/2+
636.861 10	D	3/2-		132.413 7 165.049 8 430 1 595.8 3 636.88 3	100 5 77 5 ≈1.0 0.38 8 40 3	M1+E2 M1+E2 [E1] [E2] M1+E2	504.449 471.810 205.883 41.176 0.0	5/2- 3/2- 5/2+ 7/2- 5/2-
645.0 3	C	21/2-		120.3 5 226.9 2	4.1 13 100 43		525.67 418.18	19/2- 17/2-
652.089 10	D	(1/2)-		15.228 2 29.02 5 147.67 3 180.277 8 652.1 4	11.4 5 6.3 13 2.75 23 100 9 8.3 21	M1+E2 [E1] [E2] M1(+E2) [E2]	636.861 623.10 504.449 471.810 0.0	3/2- (1/2+) 5/2- 3/2- 5/2-
653.23 4	D F	3/2+		447.35 4 653.2 2	80 10 100 7	M1+E2 [E1]	205.883 0.0	5/2+ 5/2-
670.24 8	D	3/2+		464.36 8 670.2 2	14.8 24 100 7	M1+E2 [E1]	205.883 0.0	5/2+ 5/2-
682.1 6	C F	11/2-		131.7 5			550.4	7/2-
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
723.9 4	C	21/2+		193.0 5 198.0 5	100 10 7		530.9 525.67	17/2+ 19/2-
732 4	F	(11/2+)
773.8 3	C	23/2-		129.1 2 247.9 2	45 25 100		645.0 525.67	21/2- 19/2-
787.2 6	C	13/2-		106.2 5 ? 162.0 5	10 9 100 90		682.1 625.2	11/2- 9/2-
822 4	F	(13/2+)
851.3 5	C	23/2+		127.3 5 221.5 5	29 14 100 43		723.9 629.8	21/2+ 19/2+
863.8 7	C	15/2-		181.7 5			682.1	11/2-
884 4	F
912.7 3	C	25/2-		139.1 5 267.8 2	16 6 100		773.8 645.0	23/2- 21/2-
952 1	E	5/2-
959.4 4	C	25/2+		108.1 5 185.6 5 235.5 5	10 5 10 5 100 50		851.3 773.8 723.9	23/2+ 23/2- 21/2+
982 2	E
989.1 7	C	17/2-		124.5 5 201.9 5	10 8 100 92		863.8 787.2	15/2- 13/2-
1020 4	F
1061.7 4	C	27/2-		149.6 5 287.8 2	36 13 100		912.7 773.8	25/2- 23/2-
1064 4	F
1084.6 7	C	19/2-		91.3 5 ? 221.5 5	10 14 100		989.1 863.8	17/2- 15/2-
1106 4	F
1117.6 5	C	27/2+		158.2 5 266.3 5	100 31 22		959.4 851.3	25/2+ 23/2+
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
1132 5	F
1136 3	E
1163 3	F
1219.2 4	C	29/2-		157.3 5 306.6 2	30 12 100		1061.7 912.7	27/2- 25/2-
1227 3	F
1230.9 8	C	21/2-		147.2 5 241.0 5	10 12 100		1084.6 989.1	19/2- 17/2-
1235.9 5	C	29/2+		118.3 5 174.3 5 276.5 5	10 5 10 5 100 43		1117.6 1061.7 959.4	27/2+ 27/2- 25/2+
1345.0 8	C	23/2-		113.7 5 ? 260.3 5	10 13 100		1230.9 1084.6	21/2- 19/2-
1387.5 4	C	31/2-		168.6 5 325.8 5	19 7 100		1219.2 1061.7	29/2- 27/2-
1426.4 6	C	31/2+		190.5 5 308.8 5	100 97 64		1235.9 1117.6	29/2+ 27/2+
1510.2 8	C	25/2-		164.9 5 279.5 5	10 12 100		1345.0 1230.9	23/2- 21/2-
1550 4	E	(5/2-)
1551.2 6	C	33/2+		124.8 5 315.3 5	10 6 100		1426.4 1235.9	31/2+ 29/2+
1562.6 4	C	33/2-		175.1 5 343.3 2	22 7 100		1387.5 1219.2	31/2- 29/2-
1642.7 9	C	27/2-		132.9 5 297.8 5	10 7 100		1510.2 1345.0	25/2- 23/2-
1749.4 5	C	35/2-		186.6 5 361.9 2	17 8 100		1562.6 1387.5	33/2- 31/2-
1775.2 7	C	35/2+		224.0 5 348.8 5	21 40 100		1551.2 1426.4	33/2+ 31/2+
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
1826.9 9	C	29/2-		184.5 5 316.1 5	10 9 100		1642.7 1510.2	27/2- 25/2-
1903.5 7	C	37/2+		352.3 5			1551.2	33/2+
1940.6 5	C	37/2-		191.1 5 378.0 2	15 6 100		1749.4 1562.6	35/2- 33/2-
1975.8 9	C	31/2-		148.2 5 333.6 5	10 7 100		1826.9 1642.7	29/2- 27/2-
2145.4 5	C	39/2-		204.9 5 396.3 5	18 9 100		1940.6 1749.4	37/2- 35/2-
2161.6 7	C	39/2+		258.1 5 386.4 5	41 41 100		1903.5 1775.2	37/2+ 35/2+
2178.0 10	C	33/2-		351.3 5			1826.9	29/2-
≈2200			1.2 µs 3 % SF = 100
2289.7 9	C	41/2+		386.2 5			1903.5	37/2+
2343.9 10	C	35/2-		166.2 5 367.8 5	10 6 100		2178.0 1975.8	33/2- 31/2-
2352.2 6	C	41/2-		207.1 5 411.2 5	16 7 100		2145.4 1940.6	39/2- 37/2-
2561.5 11	C	37/2-		383.5 5			2178.0	33/2-
2574.6 8	C	43/2-		429.2 5			2145.4	39/2-
2582.7 9	C	43/2+		421.1 5			2161.6	39/2+
2708.0 10	C	45/2+		418.3 5			2289.7	41/2+
2743.8 11	C	39/2-		399.9 5			2343.9	35/2-
2794.7 8	C	45/2-		442.5 5			2352.2	41/2-
2977.2 12	C	41/2-		415.7 5			2561.5	37/2-
3035.1 9	C	47/2-		460.5 5			2574.6	43/2-
3036.3 10	C	47/2+		453.6 5			2582.7	43/2+
3156.7 11	C	49/2+		448.7 5			2708.0	45/2+
3174.7 12	C	43/2-		430.9 5			2743.8	39/2-
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
3266.9 9	C	49/2-		472.2 5			2794.7	45/2-
3424.3 13	C	45/2-		447.1 5			2977.2	41/2-
3520.8 12	C	51/2+		484.5 5			3036.3	47/2+
3525.1 10	C	51/2-		490.0 5			3035.1	47/2-
3633.5 13	C	53/2+		476.8 5			3156.7	49/2+
3635.1 13	C	47/2-		460.4 5			3174.7	43/2-
3767.7 11	C	53/2-		500.8 5			3266.9	49/2-
3903.0 14	C	(49/2-)		479.3 5 ?			3424.3	45/2-
4034.4 13	C	55/2+		513.6 5			3520.8	51/2+
4043.2 12	C	55/2-		518.1 5			3525.1	51/2-
4122.5 14	C	51/2-		487.4 5			3635.1	47/2-
4137.6 14	C	57/2+		504.1 5			3633.5	53/2+
4294.9 12	C	57/2-		527.2 5			3767.7	53/2-
4575.6 13	C	59/2-		532.4 5			4043.2	55/2-
4577.5 14	C	(59/2+)		542.8 5 ?			4034.4	55/2+
4669.4 14	C	61/2+		531.8 5			4137.6	57/2+
4845.9 13	C	61/2-		551.0 5			4294.9	57/2-
5117.2 14	C	63/2-		541.6 5			4575.6	59/2-
5228.9 15	C	65/2+		559.5 5			4669.4	61/2+
5407.9 14	C	65/2-		562.0 5			4845.9	61/2-
5816.8 16	C	(69/2+)		587.6 5 ?			5228.9	65/2+
5980.9 14	C	(69/2-)		573.0 5 ?			5407.9	65/2-

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 1 - 5/2[523] band, α=+1/2
0.0	5/2-	432.6 y 6 % α = 100 % SF = 3.6×10^-10 9
93.70 10	9/2-
233.68 20	13/2-
418.18 23	17/2-		98.0 5 184.4 2	4.6 23 100 43		319.82 233.68	15/2- 13/2-
645.0 3	21/2-		120.3 5 226.9 2	4.1 13 100 43		525.67 418.18	19/2- 17/2-
912.7 3	25/2-		139.1 5 267.8 2	16 6 100		773.8 645.0	23/2- 21/2-
1219.2 4	29/2-		157.3 5 306.6 2	30 12 100		1061.7 912.7	27/2- 25/2-
1562.6 4	33/2-
1940.6 5	37/2-
2352.2 6	41/2-		207.1 5 411.2 5	16 7 100		2145.4 1940.6	39/2- 37/2-
2794.7 8	45/2-
3266.9 9	49/2-		472.2 5			2794.7	45/2-
3767.7 11	53/2-		500.8 5			3266.9	49/2-
4294.9 12	57/2-		527.2 5			3767.7	53/2-
4845.9 13	61/2-		551.0 5			4294.9	57/2-
5407.9 14	65/2-
5980.9 14	(69/2-)		573.0 5 ?			5407.9	65/2-
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 2 - 5/2[523] band, α=-1/2
41.176 3	7/2-
157.50 18	11/2-		116.4 2			41.176	7/2-
319.82 23	15/2-
525.67 25	19/2-		107.2 2 206.0 2	13 5 100		418.18 319.82	17/2- 15/2-
773.8 3	23/2-		129.1 2 247.9 2	45 25 100		645.0 525.67	21/2- 19/2-
1061.7 4	27/2-		149.6 5 287.8 2	36 13 100		912.7 773.8	25/2- 23/2-
1387.5 4	31/2-		168.6 5 325.8 5	19 7 100		1219.2 1061.7	29/2- 27/2-
1749.4 5	35/2-
2145.4 5	39/2-
2574.6 8	43/2-		429.2 5			2145.4	39/2-
3035.1 9	47/2-
3525.1 10	51/2-		490.0 5			3035.1	47/2-
4043.2 12	55/2-		518.1 5			3525.1	51/2-
4575.6 13	59/2-		532.4 5			4043.2	55/2-
5117.2 14	63/2-		541.6 5			4575.6	59/2-
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 3 - 5/2[642] band, α=+1/2
205.883 10	5/2+
273.2 5	9/2+		179.5 5	100		93.70	9/2-
381.1 5	13/2+
530.9 4	17/2+		149.9 5 211.0 5	100 50 10 5		381.1 319.82	13/2+ 15/2-
723.9 4	21/2+		193.0 5 198.0 5	100 10 7		530.9 525.67	17/2+ 19/2-
959.4 4	25/2+		108.1 5 185.6 5 235.5 5	10 5 10 5 100 50		851.3 773.8 723.9	23/2+ 23/2- 21/2+
1235.9 5	29/2+		118.3 5 174.3 5 276.5 5	10 5 10 5 100 43		1117.6 1061.7 959.4	27/2+ 27/2- 25/2+
1551.2 6	33/2+
1903.5 7	37/2+
2289.7 9	41/2+		386.2 5			1903.5	37/2+
2708.0 10	45/2+
3156.7 11	49/2+		448.7 5			2708.0	45/2+
3633.5 13	53/2+		476.8 5			3156.7	49/2+
4137.6 14	57/2+		504.1 5			3633.5	53/2+
4669.4 14	61/2+		531.8 5			4137.6	57/2+
5228.9 15	65/2+
5816.8 16	(69/2+)		587.6 5 ?			5228.9	65/2+
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 4 - 5/2[642] band, α=-1/2
235.2 5	7/2+
319.8 10	11/2+
453.1 9	15/2+
629.8 7	19/2+		176.7 5			453.1	15/2+
851.3 5	23/2+		127.3 5 221.5 5	29 14 100 43		723.9 629.8	21/2+ 19/2+
1117.6 5	27/2+		158.2 5 266.3 5	100 31 22		959.4 851.3	25/2+ 23/2+
1426.4 6	31/2+		190.5 5 308.8 5	100 97 64		1235.9 1117.6	29/2+ 27/2+
1775.2 7	35/2+
2161.6 7	39/2+
2582.7 9	43/2+		421.1 5			2161.6	39/2+
3036.3 10	47/2+
3520.8 12	51/2+		484.5 5			3036.3	47/2+
4034.4 13	55/2+		513.6 5			3520.8	51/2+
4577.5 14	(59/2+)		542.8 5 ?			4034.4	55/2+
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 5 - 3/2[521] band, α=-1/2
471.810 9	3/2-
550.4 4	7/2-		77.0 5 ? 455.9 5 510.0 5			471.810 93.70 41.176	3/2- 9/2- 7/2-
682.1 6	11/2-
863.8 7	15/2-		181.7 5			682.1	11/2-
1084.6 7	19/2-		91.3 5 ? 221.5 5	10 14 100		989.1 863.8	17/2- 15/2-
1345.0 8	23/2-		113.7 5 ? 260.3 5	10 13 100		1230.9 1084.6	21/2- 19/2-
1642.7 9	27/2-		132.9 5 297.8 5	10 7 100		1510.2 1345.0	25/2- 23/2-
1975.8 9	31/2-
2343.9 10	35/2-
2743.8 11	39/2-		399.9 5			2343.9	35/2-
3174.7 12	43/2-
3635.1 13	47/2-		460.4 5			3174.7	43/2-
4122.5 14	51/2-		487.4 5			3635.1	47/2-
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 6 - 3/2[521] band, α=+1/2
504.449 9	5/2-
625.2 5	9/2-		120.8 5			504.449	5/2-
787.2 6	13/2-
989.1 7	17/2-		124.5 5 201.9 5	10 8 100 92		863.8 787.2	15/2- 13/2-
1230.9 8	21/2-		147.2 5 241.0 5	10 12 100		1084.6 989.1	19/2- 17/2-
1510.2 8	25/2-		164.9 5 279.5 5	10 12 100		1345.0 1230.9	23/2- 21/2-
1826.9 9	29/2-		184.5 5 316.1 5	10 9 100		1642.7 1510.2	27/2- 25/2-
2178.0 10	33/2-
2561.5 11	37/2-
2977.2 12	41/2-		415.7 5			2561.5	37/2-
3424.3 13	45/2-
3903.0 14	(49/2-)		479.3 5 ?			3424.3	45/2-
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 7 - 1/2[400] band.
623.10 4	(1/2+)
653.23 4	3/2+		447.35 4 653.2 2	80 10 100 7	M1+E2 [E1]	205.883 0.0	5/2+ 5/2-
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 8 - 1/2[530] band.
636.861 10	3/2-
652.089 10	(1/2)-		15.228 2 29.02 5 147.67 3 180.277 8 652.1 4	11.4 5 6.3 13 2.75 23 100 9 8.3 21	M1+E2 [E1] [E2] M1(+E2) [E2]	636.861 623.10 504.449 471.810 0.0	3/2- (1/2+) 5/2- 3/2- 5/2-

E(level)	J^π(level)	T_1/2(level)	Comments
0.0	5/2-	432.6 y 6 % α = 100 % SF = 3.6×10^-10 9	Q=+4.34 5, μ=+1.58 1 %SF is obtained from adopted T_1/2 and T_1/2(SF) values. E(level): %SF is obtained from adopted T_1/2 and T_1/2(SF) values. 5/2[523] band, α=+1/2.
41.176	7/2-		E(level): 5/2[523] band, α=-1/2.
93.70	9/2-		E(level): 5/2[523] band, α=+1/2.
157.50	11/2-		E(level): 5/2[523] band, α=-1/2.
205.883	5/2+		E(level): 5/2[642] band, α=+1/2.
233.68	13/2-		E(level): 5/2[523] band, α=+1/2.
235.2	7/2+		E(level): 5/2[642] band, α=-1/2.
273.2	9/2+		E(level): 5/2[642] band, α=+1/2.
319.8	11/2+		E(level): 5/2[642] band, α=-1/2.
319.82	15/2-		E(level): 5/2[523] band, α=-1/2.
381.1	13/2+		E(level): 5/2[642] band, α=+1/2.
418.18	17/2-		E(level): 5/2[523] band, α=+1/2.
453.1	15/2+		E(level): 5/2[642] band, α=-1/2.
471.810	3/2-		E(level): 3/2[521] band, α=-1/2.
504.449	5/2-		E(level): 3/2[521] band, α=+1/2.
525.67	19/2-		E(level): 5/2[523] band, α=-1/2.
530.9	17/2+		E(level): 5/2[642] band, α=+1/2.
550.4	7/2-		E(level): 3/2[521] band, α=-1/2.
623.10	(1/2+)		E(level): 1/2[400] band.
625.2	9/2-		E(level): 3/2[521] band, α=+1/2.
629.8	19/2+		E(level): 5/2[642] band, α=-1/2.
636.861	3/2-		E(level): 1/2[530] band.
645.0	21/2-		E(level): 5/2[523] band, α=+1/2.
652.089	(1/2)-		E(level): 1/2[530] band.
653.23	3/2+		E(level): 1/2[400] band.
E(level)	J^π(level)	T_1/2(level)	Comments
670.24	3/2+		Configuration 3/2[651].
682.1	11/2-		E(level): 3/2[521] band, α=-1/2.
723.9	21/2+		E(level): 5/2[642] band, α=+1/2.
773.8	23/2-		E(level): 5/2[523] band, α=-1/2.
787.2	13/2-		E(level): 3/2[521] band, α=+1/2.
851.3	23/2+		E(level): 5/2[642] band, α=-1/2.
863.8	15/2-		E(level): 3/2[521] band, α=-1/2.
912.7	25/2-		E(level): 5/2[523] band, α=+1/2.
959.4	25/2+		E(level): 5/2[642] band, α=+1/2.
989.1	17/2-		E(level): 3/2[521] band, α=+1/2.
1061.7	27/2-		E(level): 5/2[523] band, α=-1/2.
1084.6	19/2-		E(level): 3/2[521] band, α=-1/2.
1117.6	27/2+		E(level): 5/2[642] band, α=-1/2.
1219.2	29/2-		E(level): 5/2[523] band, α=+1/2.
1230.9	21/2-		E(level): 3/2[521] band, α=+1/2.
1235.9	29/2+		E(level): 5/2[642] band, α=+1/2.
1345.0	23/2-		E(level): 3/2[521] band, α=-1/2.
1387.5	31/2-		E(level): 5/2[523] band, α=-1/2.
1426.4	31/2+		E(level): 5/2[642] band, α=-1/2.
1510.2	25/2-		E(level): 3/2[521] band, α=+1/2.
1551.2	33/2+		E(level): 5/2[642] band, α=+1/2.
1562.6	33/2-		E(level): 5/2[523] band, α=+1/2.
1642.7	27/2-		E(level): 3/2[521] band, α=-1/2.
1749.4	35/2-		E(level): 5/2[523] band, α=-1/2.
1775.2	35/2+		E(level): 5/2[642] band, α=-1/2.
E(level)	J^π(level)	T_1/2(level)	Comments
1826.9	29/2-		E(level): 3/2[521] band, α=+1/2.
1903.5	37/2+		E(level): 5/2[642] band, α=+1/2.
1940.6	37/2-		E(level): 5/2[523] band, α=+1/2.
1975.8	31/2-		E(level): 3/2[521] band, α=-1/2.
2145.4	39/2-		E(level): 5/2[523] band, α=-1/2.
2161.6	39/2+		E(level): 5/2[642] band, α=-1/2.
2178.0	33/2-		E(level): 3/2[521] band, α=+1/2.
2200		1.2 µs 3 % SF = 100	Assignment: ²⁴²Pu(p,2n) excit (1969La14); ²⁴¹Pu(13-MeV d,2n) (1969La14); ²⁴¹Am(14.7-MeV n,n’) (1973Be04). E(level): Assignment: ²⁴²Pu(p,2n) excit (1969La14); ²⁴¹Pu(13-MeV d,2n) (1969La14); ²⁴¹Am(14.7-MeV n,n’) (1973Be04).
2289.7	41/2+		E(level): 5/2[642] band, α=+1/2.
2343.9	35/2-		E(level): 3/2[521] band, α=-1/2.
2352.2	41/2-		E(level): 5/2[523] band, α=+1/2.
2561.5	37/2-		E(level): 3/2[521] band, α=+1/2.
2574.6	43/2-		E(level): 5/2[523] band, α=-1/2.
2582.7	43/2+		E(level): 5/2[642] band, α=-1/2.
2708.0	45/2+		E(level): 5/2[642] band, α=+1/2.
2743.8	39/2-		E(level): 3/2[521] band, α=-1/2.
2794.7	45/2-		E(level): 5/2[523] band, α=+1/2.
2977.2	41/2-		E(level): 3/2[521] band, α=+1/2.
3035.1	47/2-		E(level): 5/2[523] band, α=-1/2.
3036.3	47/2+		E(level): 5/2[642] band, α=-1/2.
3156.7	49/2+		E(level): 5/2[642] band, α=+1/2.
3174.7	43/2-		E(level): 3/2[521] band, α=-1/2.
3266.9	49/2-		E(level): 5/2[523] band, α=+1/2.
3424.3	45/2-		E(level): 3/2[521] band, α=+1/2.
3520.8	51/2+		E(level): 5/2[642] band, α=-1/2.
E(level)	J^π(level)	T_1/2(level)	Comments
3525.1	51/2-		E(level): 5/2[523] band, α=-1/2.
3633.5	53/2+		E(level): 5/2[642] band, α=+1/2.
3635.1	47/2-		E(level): 3/2[521] band, α=-1/2.
3767.7	53/2-		E(level): 5/2[523] band, α=+1/2.
3903.0	(49/2-)		E(level): 3/2[521] band, α=+1/2.
4034.4	55/2+		E(level): 5/2[642] band, α=-1/2.
4043.2	55/2-		E(level): 5/2[523] band, α=-1/2.
4122.5	51/2-		E(level): 3/2[521] band, α=-1/2.
4137.6	57/2+		E(level): 5/2[642] band, α=+1/2.
4294.9	57/2-		E(level): 5/2[523] band, α=+1/2.
4575.6	59/2-		E(level): 5/2[523] band, α=-1/2.
4577.5	(59/2+)		E(level): 5/2[642] band, α=-1/2.
4669.4	61/2+		E(level): 5/2[642] band, α=+1/2.
4845.9	61/2-		E(level): 5/2[523] band, α=+1/2.
5117.2	63/2-		E(level): 5/2[523] band, α=-1/2.
5228.9	65/2+		E(level): 5/2[642] band, α=+1/2.
5407.9	65/2-		E(level): 5/2[523] band, α=+1/2.
5816.8	(69/2+)		E(level): 5/2[642] band, α=+1/2.
5980.9	(69/2-)		E(level): 5/2[523] band, α=+1/2.

E(level)	E(gamma)	Comments
205.883	164.8	E(γ): Eγ=165.1 2 in ²⁴¹Am(²⁰⁹Bi,²⁰⁹Bi’γ) I(γ): Iγ=21 6 in α decay
418.18	98.0	I(γ): Value given is an upper limit
471.810	265.922	M(γ): Probable anomalous conversion. See 1974Po08 in ε decay for calculations of penetration effects
471.810	471.805	M(γ): Probable anomalous conversion. See 1974Po08 in ε decay for calculations of penetration effects
504.449	298.57	M(γ): Probable anomalous conversion. See 1974Po08 in ε decay for calculations of penetration effects
	463.273	M(γ): Probable anomalous conversion. See 1974Po08 in ε decay for calculations of penetration effects
	504.45	M(γ): Probable anomalous conversion. See 1974Po08 in ε decay for calculations of penetration effects
525.67	107.2	I(γ): Value given is an upper limit
636.861	132.413	M(γ): Probable anomalous conversion. See 1974Po08 in ε decay for calculations of penetration effects
636.861	165.049	M(γ): Probable anomalous conversion. See 1974Po08 in ε decay for calculations of penetration effects
645.0	120.3	I(γ): Value given is an upper limit
723.9	198.0	I(γ): Value given is an upper limit
912.7	139.1	I(γ): Value given is an upper limit
959.4	108.1	I(γ): Value given is an upper limit
959.4	185.6	I(γ): Value given is an upper limit
1084.6	91.3	E(γ): The energy fit is poor. The least-squares adjustment gives 95.5 5 I(γ): Value given is an upper limit
1230.9	147.2	I(γ): Value given is an upper limit
1235.9	118.3	I(γ): Value given is an upper limit
1235.9	174.3	I(γ): Value given is an upper limit
1345.0	113.7	I(γ): Value given is an upper limit
1510.2	164.9	I(γ): Value given is an upper limit
1551.2	124.8	I(γ): Value given is an upper limit
1642.7	132.9	I(γ): Value given is an upper limit
1826.9	184.5	I(γ): Value given is an upper limit
1975.8	148.2	I(γ): Value given is an upper limit
E(level)	E(gamma)	Comments
2145.4	204.9	I(γ): Value given is an upper limit
2343.9	166.2	I(γ): Value given is an upper limit
2352.2	207.1	I(γ): Value given is an upper limit
4577.5	542.8	E(γ): The tentative placement assigned to this transition results from the observation of a weak transition at this energy in sums of coincidence spectra double gated on transitions between high-spin levels in the g.s. band
5816.8	587.6	E(γ): The tentative placement assigned to this transition results from the observation of a weak transition at this energy in sums of coincidence spectra double gated on transitions between high-spin levels in the g.s. band
5980.9	573.0	E(γ): The tentative placement assigned to this transition results from the observation of a weak transition at this energy in sums of coincidence spectra double gated on transitions between high-spin levels in the g.s. band