List of levels for 242PU

Authors: M.J. Martin, C.D. Nesaraja | Citation: Nucl. Data Sheets 186, 261 (2022) | Cutoff date: 31-Dec-2021

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Conversion Coefficient	Additional Data
44.545	2+	160 ps 3	44.545 9	E2	748	B(E2)(W.u.)=301 14, α=748 10, α(L)=543 8, α(M)=151.5 21, α(N)=41.6 6, α(O)=9.78 14, α(P)=1.529 21, α(Q)=0.00328 5
147.4	4+		102.8 1	(E2)	13.88	α=13.88 20, α(L)=10.07 15, α(M)=2.82 4, α(N)=0.775 11, α(O)=0.1827 27, α(P)=0.0291 4, α(Q)=0.0001056 15
306.4	6+		159.1 1	(E2)	2.098	α=2.098 30, α(K)=0.1921 27, α(L)=1.384 20, α(M)=0.386 6, α(N)=0.1062 15, α(O)=0.0251 4, α(P)=0.00406 6, α(Q)=2.430×10^-5 34
518.1	8+		211.3 2	(E2)	0.696	α=0.696 10, α(K)=0.1388 20, α(L)=0.406 6, α(M)=0.1125 16, α(N)=0.0309 5, α(O)=0.00732 11, α(P)=0.001201 17, α(Q)=1.077×10^-5 15
778.6	10+		260.7 2	(E2)	0.333	α=0.333 5, α(K)=0.0987 14, α(L)=0.1706 24, α(M)=0.0470 7, α(N)=0.01290 19, α(O)=0.00307 4, α(P)=0.000509 7, α(Q)=6.24×10^-6 9
1084.0	12+		306.2 2	(E2)	0.1985	α=0.1985 28, α(K)=0.0745 10, α(L)=0.0906 13, α(M)=0.02476 35, α(N)=0.00680 10, α(O)=0.001619 23, α(P)=0.000272 4, α(Q)=4.21×10^-6 6
1242.8	9-		725.7 2	(E1)	0.00714	α=0.00714 10, α(K)=0.00578 8, α(L)=0.001026 14, α(M)=0.0002455 34, α(N)=6.64×10^-5 9, α(O)=1.640E-5 23, α(P)=3.05E-6 4, α(Q)=1.856E-7 26
1277.1	7-		971.3 5	(E1)	0.00426	α=0.00426 6, α(K)=0.00347 5, α(L)=0.000599 8, α(M)=0.0001429 20, α(N)=3.86×10^-5 5, α(O)=9.57E-6 13, α(P)=1.794E-6 25, α(Q)=1.129E-7 16
1431.7	14+		347.7 2	(E2)	0.1360	α=0.1360 19, α(K)=0.0593 8, α(L)=0.0561 8, α(M)=0.01523 22, α(N)=0.00418 6, α(O)=0.000998 14, α(P)=0.0001691 24, α(Q)=3.13×10^-6 4
1466.8	11-		224.0 3	(E2)	0.563	α=0.563 8, α(K)=0.1269 18, α(L)=0.318 5, α(M)=0.0879 13, α(N)=0.0242 4, α(O)=0.00573 9, α(P)=0.000942 14, α(Q)=9.21×10^-6 13
1466.8	11-		689.0 2	(E1)	0.00785	α=0.00785 11, α(K)=0.00635 9, α(L)=0.001133 16, α(M)=0.000271 4, α(N)=7.34×10^-5 10, α(O)=1.811E-5 25, α(P)=3.37E-6 5, α(Q)=2.032E-7 28
1478.5	9-		201.4 3	(E2)	0.832	α=0.832 13, α(K)=0.1489 21, α(L)=0.497 8, α(M)=0.1380 21, α(N)=0.0379 6, α(O)=0.00898 14, α(P)=0.001470 23, α(Q)=1.228×10^-5 18
1478.5	9-		961.4 4	(E1)	0.00434	α=0.00434 6, α(K)=0.00353 5, α(L)=0.000610 9, α(M)=0.0001456 20, α(N)=3.94×10^-5 6, α(O)=9.75E-6 14, α(P)=1.827E-6 26, α(Q)=1.148E-7 16
1577.9	(11-)		219.2 3	(E2)	0.609	α=0.609 9, α(K)=0.1313 19, α(L)=0.348 5, α(M)=0.0963 15, α(N)=0.0265 4, α(O)=0.00627 10, α(P)=0.001031 16, α(Q)=9.76×10^-6 14
1724.9	11-		246.4 2	(E2)	0.403	α=0.403 6, α(K)=0.1086 15, α(L)=0.2144 31, α(M)=0.0592 9, α(N)=0.01625 23, α(O)=0.00386 6, α(P)=0.000638 9, α(Q)=7.19×10^-6 10
	11-		640.9 3	(E1)	0.00897	α=0.00897 13, α(K)=0.00725 10, α(L)=0.001303 18, α(M)=0.000312 4, α(N)=8.44×10^-5 12, α(O)=2.083E-5 29, α(P)=3.87E-6 5, α(Q)=2.309E-7 32
	11-		947.1 2	(E1)	0.00445	α=0.00445 6, α(K)=0.00362 5, α(L)=0.000627 9, α(M)=0.0001496 21, α(N)=4.05×10^-5 6, α(O)=1.001E-5 14, α(P)=1.877E-6 26, α(Q)=1.177E-7 16
1733.4	13-		266.6 2	(E2)	0.309	α=0.309 4, α(K)=0.0950 13, α(L)=0.1560 22, α(M)=0.0429 6, α(N)=0.01178 17, α(O)=0.00280 4, α(P)=0.000466 7, α(Q)=5.90×10^-6 8
1733.4	13-		649.4 2	(E1)	0.00876	α=0.00876 12, α(K)=0.00708 10, α(L)=0.001270 18, α(M)=0.000304 4, α(N)=8.23×10^-5 12, α(O)=2.030E-5 28, α(P)=3.77E-6 5, α(Q)=2.255E-7 32
1817.4	16+		385.7 2	(E2)	0.1017	α=0.1017 14, α(K)=0.0492 7, α(L)=0.0385 5, α(M)=0.01039 15, α(N)=0.00285 4, α(O)=0.000682 10, α(P)=0.0001165 16, α(Q)=2.474×10^-6 35
1842.2	(13-)		264.3 3	(E2)	0.318	α=0.318 5, α(K)=0.0964 14, α(L)=0.1615 24, α(M)=0.0444 7, α(N)=0.01220 18, α(O)=0.00290 4, α(P)=0.000482 7, α(Q)=6.03×10^-6 9
2013.4	13-		288.5 2	(E2)	0.2392	α=0.2392 34, α(K)=0.0828 12, α(L)=0.1141 16, α(M)=0.0313 4, α(N)=0.00859 12, α(O)=0.002044 29, α(P)=0.000342 5, α(Q)=4.86×10^-6 7
2013.4	13-		929.4 2	(E1)	0.00460	α=0.00460 6, α(K)=0.00374 5, α(L)=0.000649 9, α(M)=0.0001548 22, α(N)=4.19×10^-5 6, α(O)=1.036E-5 15, α(P)=1.942E-6 27, α(Q)=1.215E-7 17
2040.6	15-		307.2 2	(E2)	0.1965	α=0.1965 28, α(K)=0.0740 10, α(L)=0.0895 13, α(M)=0.02445 35, α(N)=0.00671 10, α(O)=0.001599 23, α(P)=0.000268 4, α(Q)=4.18×10^-6 6
2040.6	15-		608.9 2	(E1)	0.00987	α=0.00987 14, α(K)=0.00797 11, α(L)=0.001440 20, α(M)=0.000345 5, α(N)=9.34×10^-5 13, α(O)=2.303E-5 32, α(P)=4.27E-6 6, α(Q)=2.530E-7 35
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Conversion Coefficient	Additional Data
2170.8	(14+)		284.9 3	(E2)	0.249	α=0.249 4, α(K)=0.0846 12, α(L)=0.1199 18, α(M)=0.0329 5, α(N)=0.00903 13, α(O)=0.002148 31, α(P)=0.000359 5, α(Q)=5.01×10^-6 7
	(14+)		739.1 2	(M1+E2)	0.06	α=0.06 4, α(K)=0.049 33, α(L)=0.011 5, α(M)=0.0026 13, α(N)=7.0×10^-4 35, α(O)=1.7E-4 9, α(P)=3.3E-5 17, α(Q)=1.9E-6 13
	(14+)		1086.8 2	(E2)	0.01056	α=0.01056 15, α(K)=0.00795 11, α(L)=0.001947 27, α(M)=0.000486 7, α(N)=0.0001322 19, α(O)=3.25×10^-5 5, α(P)=5.98E-6 8, α(Q)=3.08E-7 4
2237.5	18+		420.1 2	(E2)	0.0811	α=0.0811 11, α(K)=0.0422 6, α(L)=0.0286 4, α(M)=0.00766 11, α(N)=0.002098 30, α(O)=0.000503 7, α(P)=8.66×10^-5 12, α(Q)=2.048E-6 29
2339.5	15-		326.1 2	(E2)	0.1640	α=0.1640 23, α(K)=0.0665 9, α(L)=0.0713 10, α(M)=0.01942 28, α(N)=0.00533 8, α(O)=0.001271 18, α(P)=0.0002143 30, α(Q)=3.63×10^-6 5
2339.5	15-		907.8 3	(E1)	0.00479	α=0.00479 7, α(K)=0.00390 5, α(L)=0.000677 9, α(M)=0.0001616 23, α(N)=4.37×10^-5 6, α(O)=1.082E-5 15, α(P)=2.025E-6 28, α(Q)=1.265E-7 18
2386.9	17-		346.3 2	(E2)	0.1376	α=0.1376 19, α(K)=0.0597 8, α(L)=0.0569 8, α(M)=0.01546 22, α(N)=0.00424 6, α(O)=0.001013 14, α(P)=0.0001716 24, α(Q)=3.16×10^-6 4
2386.9	17-		569.5 2	(E1)	0.01121	α=0.01121 16, α(K)=0.00903 13, α(L)=0.001644 23, α(M)=0.000395 6, α(N)=0.0001068 15, α(O)=2.63×10^-5 4, α(P)=4.86E-6 7, α(Q)=2.85E-7 4
2483.6	(16+)		312.8 3	(E2)	0.1860	α=0.1860 27, α(K)=0.0717 10, α(L)=0.0835 12, α(M)=0.02280 33, α(N)=0.00626 9, α(O)=0.001491 22, α(P)=0.000251 4, α(Q)=4.00×10^-6 6
2483.6	(16+)		1051.9 2	(E2)	0.01122	α=0.01122 16, α(K)=0.00841 12, α(L)=0.002101 29, α(M)=0.000525 7, α(N)=0.0001430 20, α(O)=3.51×10^-5 5, α(P)=6.45E-6 9, α(Q)=3.27E-7 5
2688.6	20+		451.1 2	(E2)	0.0676	α=0.0676 9, α(K)=0.0371 5, α(L)=0.02243 32, α(M)=0.00598 8, α(N)=0.001639 23, α(O)=0.000394 6, α(P)=6.81×10^-5 10, α(Q)=1.755E-6 25
2769.3	19-		382.4 3	(E2)	0.1041	α=0.1041 15, α(K)=0.0499 7, α(L)=0.0397 6, α(M)=0.01072 15, α(N)=0.00294 4, α(O)=0.000703 10, α(P)=0.0001201 17, α(Q)=2.52×10^-6 4
2769.3	19-		531.8 2	(E1)	0.01278	α=0.01278 18, α(K)=0.01028 14, α(L)=0.001887 26, α(M)=0.000454 6, α(N)=0.0001226 17, α(O)=3.02×10^-5 4, α(P)=5.57E-6 8, α(Q)=3.23E-7 5
2806.8	(18+)		323.2 2	(E2)	0.1685	α=0.1685 24, α(K)=0.0676 9, α(L)=0.0737 10, α(M)=0.02010 29, α(N)=0.00551 8, α(O)=0.001315 19, α(P)=0.0002216 31, α(Q)=3.71×10^-6 5
3142.1	(20+)		335.3 2	(E2)	0.1511	α=0.1511 21, α(K)=0.0633 9, α(L)=0.0642 9, α(M)=0.01747 25, α(N)=0.00479 7, α(O)=0.001144 16, α(P)=0.0001933 27, α(Q)=3.40×10^-6 5
3167.2	22+		478.6 2	(E2)	0.0584	α=0.0584 8, α(K)=0.0334 5, α(L)=0.01844 26, α(M)=0.00490 7, α(N)=0.001341 19, α(O)=0.000323 5, α(P)=5.61×10^-5 8, α(Q)=1.547E-6 22
3185.1	21-		415.8 2	(E2)	0.0833	α=0.0833 12, α(K)=0.0429 6, α(L)=0.0296 4, α(M)=0.00794 11, α(N)=0.002176 31, α(O)=0.000522 7, α(P)=8.97×10^-5 13, α(Q)=2.095E-6 29
3185.1	21-		496.5 2	(E1)	0.01460	α=0.01460 20, α(K)=0.01173 16, α(L)=0.002172 30, α(M)=0.000523 7, α(N)=0.0001413 20, α(O)=3.47×10^-5 5, α(P)=6.40E-6 9, α(Q)=3.67E-7 5
3631.0	23-		445.9 2	(E2)	0.0696	α=0.0696 10, α(K)=0.0379 5, α(L)=0.02332 33, α(M)=0.00623 9, α(N)=0.001705 24, α(O)=0.000410 6, α(P)=7.08×10^-5 10, α(Q)=1.800E-6 25
3667.7	24+		500.5 2	(E2)	0.0525	α=0.0525 7, α(K)=0.0308 4, α(L)=0.01596 22, α(M)=0.00422 6, α(N)=0.001156 16, α(O)=0.000279 4, α(P)=4.86×10^-5 7, α(Q)=1.408E-6 20
4103.6	25-		472.6 3	(E2)	0.0603	α=0.0603 8, α(K)=0.0341 5, α(L)=0.01922 27, α(M)=0.00511 7, α(N)=0.001399 20, α(O)=0.000337 5, α(P)=5.85×10^-5 8, α(Q)=1.589E-6 22

Q(β-)=-751.1 keV 7	S(n)= 6309.6 keV 7	S(p)= 6.89×10³ keV 10	Q(α)= 4984.2 keV 10
Reference: 2021WA16

References:
A	²⁴⁶Cm α decay	B	²⁴²Np β^- decay (2.2 M)
C	²⁴²Np β^- decay (5.5 M)	D	²⁴²Am ε decay (16.01 H)
E	Coulomb Excitation	F	²⁴²Pu(d,d’)
G	²⁴⁴Pu(p,t)	H	²⁴⁴Pu(²⁰⁸Pb,210PBG)
I	²⁴¹Pu(n,γ) E=TH:PRIMARY γ’S	J	²⁴¹Pu(n,γ) E=TH: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 H I J	0+	3.73×10⁺⁵ y 2 % α = 100 % SF = 5.53×10^-4 5
44.545 9	A B C D E F G H I J	2+	160 ps 3	44.545 9	100	E2	0.0	0+
147.4 1	A B C E F G H I J	4+		102.8 1	100	(E2)	44.545	2+
306.4 2	C E F H J	6+		159.1 1	100	(E2)	147.4	4+
518.1 5	E F H	8+		211.3 2	100	(E2)	306.4	6+
778.6 8	E H	10+		260.7 2	100	(E2)	518.1	8+
780.45 5	B E F J	1-		735.93 7 780.44 5	100 53 1		44.545 0.0	2+ 0+
832.3 3	B E F I J	3-		685.0 1 787.8	100 14 113 Calc.		147.4 44.545	4+ 2+
865	F
927	E F	5-
956	E G	0+
992.5 3	B E F G	(2+)		948.0 2	100		44.545	2+
1019.5 8	E F I J	3-		974.9	100		44.545	2+
1039.2 3	B I	(1,2+)		1039.2 3 ?	100		0.0	0+
1064.0 9	I J	(4-)		915.7	100		147.4	4+
1070.8?	E	7-		143.8 10 553.7 2 765.0 2	100 100 100 14		927 518.1 306.4	5- 8+ 6+
1084.0 4	E H	12+		306.2 2	100	(E2)	778.6	10+
1092.1 2	C	(6+)		785.7 1 944.8 1	100 63 3		306.4 147.4	6+ 4+
1102 4	E F G	2+
1122	E F	5-
1152.5 13	I J	(2-)		1105.6	100		44.545	2+
1154.5 2	B	(2+,3-)		1007.3 2 1110.0 2	43 8 100 15		147.4 44.545	4+ 2+
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
1181.6 2	B	(2+)		1034.2 2 1137.1 1 1181.6 2	22 4 100 4 12 2		147.4 44.545 0.0	4+ 2+ 0+
1186.3 6 ?	E	(7-)		880.5 5 ?	100		306.4	6+
1204	F
1242.8 4	E	9-		172.0 5 ? 465.0 5 725.7 2	38 32 77 42 100 24	(E1)	1070.8 778.6 518.1	7- 10+ 8+
1259	F
1277.1 4	E	7-		760.0 5 971.3 5	<510 100 34	(E1)	518.1 306.4	8+ 6+
1357.2 3 ?	C			265.1 1	100		1092.1	(6+)
1358.7 5	E	(9-)		172.4 4 841.6 5	92 62 100 46	(D)	1186.3 518.1	(7-) 8+
1401.0 2 ?	B	(0,1+)		620.6 1	100		780.45	1-
1428.0 4	B	(2-)		647.4 3 1383.6 4	100 10 45 19		780.45 44.545	1- 2+
1431.7 16	E H	14+		347.7 2	100	(E2)	1084.0	12+
1466.8 4	E	11-		224.0 3 382.8 2 689.0 2	39 26 26 21 100 19	(E2) (E1)	1242.8 1084.0 778.6	9- 12+ 10+
1478.5 4	E	9-		201.4 3 700.7 4 961.4 4	30 11 100 91 44 13	(E2) (E1)	1277.1 778.6 518.1	7- 10+ 8+
1501	F
1517.6 1	B	(1-)		1473.1 1 1517.6 1	100 3 53 3		44.545 0.0	2+ 0+
1577.9 4	E	(11-)		219.2 3 800.1 2	100 37 84 16	(E2)	1358.7 778.6	(9-) 10+
1613	F
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
1638	F
1650	F	(3-)
1683	F
1701	F
1724.9 4	E	11-		246.4 2 640.9 3 947.1 2	20 8 100 70 49 12	(E2) (E1) (E1)	1478.5 1084.0 778.6	9- 12+ 10+
1733.4 4	E	13-		266.6 2 301.7 2 649.4 2	100 46 30 20 93 16	(E2) (E1)	1466.8 1431.7 1084.0	11- 14+ 12+
1745.3 18	I
1776	F
1817.4 4	E H	16+		385.7 2	100	(E2)	1431.7	14+
1825.8 10	F I J	(4+)		1518.6	100		306.4	6+
1842.2 4	E	(13-)		264.3 3 758.2 3	100 62 65 16	(E2)	1577.9 1084.0	(11-) 12+
1871.4 3	B			1039.2 3 1826.9 3	≤96 100 22		832.3 44.545	3- 2+
1874.1 2	B			1093.5 1 1874.5 3	100 9 22 5		780.45 0.0	1- 0+
1885.9 4	E	(12+)		801.9 2 1108.1 4	100 34 67 25		1084.0 778.6	12+ 10+
1903.6 3	B			1123.1 2 1859.2 3	45 9 100 5		780.45 44.545	1- 2+
1949.8 2	B	(1,2+)		1905.1 2 1949.9 2	37 4 100 4		44.545 0.0	2+ 0+
1969.9 2	B	(1,2+)		1925.4 2 1969.9 2	43 5 100 5		44.545 0.0	2+ 0+
1995.7 4	E			911.7 3 1217.9 3			1084.0 778.6	12+ 10+
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
2000 Calc.			3.5 ns 6 % SF = ?
≈2000+X			28 ns % SF = ?
2013.4 4	E	13-		288.5 2 929.4 2	32 30 100 18	(E2) (E1)	1724.9 1084.0	11- 12+
2040.6 4	E	15-		223.2 4 307.2 2 608.9 2	8.3 47 100 34 36 6	(E2) (E1)	1817.4 1733.4 1431.7	16+ 13- 14+
2091.8 20	I J			941.1?	100		1152.5	(2-)
2147.7 5	E	(15-)		305.35 3 716.0 4	<580 100 29		1842.2 1431.7	(13-) 14+
2170.8 4	E	(14+)		284.9 3 739.1 2 1086.8 2	100 54 67 20 80 27	(E2) (M1+E2) (E2)	1885.9 1431.7 1084.0	(12+) 14+ 12+
2237.5 4	E H	18+		420.1 2	100	(E2)	1817.4	16+
2246.0 4	B	(1,2+)		2201.6 5 2246.0 5	100 25 75 25		44.545 0.0	2+ 0+
2289.5 4	E			293.8 3 1205.5 3			1995.7 1084.0	12+
2331.3 2	B	(2+)		813.6 1 1550.9 1	100 9 29 5		1517.6 780.45	(1-) 1-
2339.5 4	E	15-		326.1 2 907.8 3	71 43 100 24	(E2) (E1)	2013.4 1431.7	13- 14+
2386.9 4	E	17-		149.4 4 346.3 2 569.5 2	<3.0 100 50 28 10	(E2) (E1)	2237.5 2040.6 1817.4	18+ 15- 16+
2437.5 21	I
2483.6 4	E	(16+)		312.8 3 666.2 4 1051.9 2	84 37 47 16 100 21	(E2) (E2)	2170.8 1817.4 1431.7	(14+) 16+ 14+
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
2494.7 5	E	(17-)		347.0 3 677.3 5	<1143 100 43		2147.7 1817.4	(15-) 16+
2616.8 5	E			327.3 3 1185.1 4			2289.5 1431.7	14+
2688.6 5	E H	20+		451.1 2	100	(E2)	2237.5	18+
2707.1 5	E	17-		367.6 2 889.7 4	100 44 37 10		2339.5 1817.4	15- 16+
2769.3 5	E	19-		382.4 3 531.8 2	100 29 55 9	(E2) (E1)	2386.9 2237.5	17- 18+
2806.8 4	E	(18+)		323.2 2 569.3 3 989.4 2	83 29 100 21	(E2)	2483.6 2237.5 1817.4	(16+) 18+ 16+
2879.2 5	E	(19-)		384.5 3 641.7 5			2494.7 2237.5	(17-) 18+
2979.4 5	E			362.6 3 1162.0 4			2616.8 1817.4	16+
3106.5 5	E	19-		399.4 3 869.0 4			2707.1 2237.5	17- 18+
3142.1 4	E	(20+)		335.3 2 453.5 3 904.6 2	46 26 100 23	(E2)	2806.8 2688.6 2237.5	(18+) 20+ 18+
3167.2 5	E H	22+		478.6 2	100	(E2)	2688.6	20+
3185.1 5	E	21-		415.8 2 496.5 2	100 42 28 5	(E2) (E1)	2769.3 2688.6	19- 20+
3297.5 6	E	(21-)		418.3 3	100		2879.2	(19-)
3374.3 6	E			394.9 4	100		2979.4
3509.5 5	E	(22+)		367.4 2 820.9 3			3142.1 2688.6	(20+) 20+
3538.5 5	E	21-		432.0 3 849.9 4			3106.5 2688.6	19- 20+
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
3631.0 5	E	23-		445.9 2 463.8 3	100 50 14 5	(E2)	3185.1 3167.2	21- 22+
3667.7 5	E H	24+		500.5 2	100	(E2)	3167.2	22+
3747.2 7	E	(23-)		449.7 4	100		3297.5	(21-)
3799.6 8 ?	E			425.3 4 ?	100		3374.3
3915.0 5	E	(24+)		405.5 3 747.8 3			3509.5 3167.2	(22+) 22+
4000.5 7	E	23-		462.0 4	100		3538.5	21-
4103.6 5	E	25-		435.9 3 472.6 3	5.0 25 100 63	(E2)	3667.7 3631.0	24+ 23-
4180.2 6	E H	26+		512.5 3	100		3667.7	24+
4221.5 8	E	(25-)		474.3 4	100		3747.2	(23-)
4368.0 6	E	(26+)		453.0 3	100		3915.0	(24+)
4599.4 7	E	27-		495.8 4	100		4103.6	25-
4691.2 8	E	28+		511.0 5	100		4180.2	26+
5117.0 8	E	29-		517.6 4	100		4599.4	27-
5201.2 11	E	30+		510.0 7	100		4691.2	28+
5648.4 9	E	31-		531.4 4	100		5117.0	29-
5723.9 11	E	32+		522.7 4	100		5201.2	30+

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 1 - Kπ=0⁺ GS band
0.0	0+	3.73×10⁺⁵ y 2 % α = 100 % SF = 5.53×10^-4 5
44.545 9	2+	160 ps 3	44.545 9	100	E2	0.0	0+
147.4 1	4+		102.8 1	100	(E2)	44.545	2+
306.4 2	6+		159.1 1	100	(E2)	147.4	4+
518.1 5	8+		211.3 2	100	(E2)	306.4	6+
778.6 8	10+		260.7 2	100	(E2)	518.1	8+
1084.0 4	12+		306.2 2	100	(E2)	778.6	10+
1431.7 16	14+		347.7 2	100	(E2)	1084.0	12+
1817.4 4	16+
2237.5 4	18+
2688.6 5	20+
3167.2 5	22+		478.6 2	100	(E2)	2688.6	20+
3667.7 5	24+		500.5 2	100	(E2)	3167.2	22+
4180.2 6	26+		512.5 3	100		3667.7	24+
4691.2 8	28+		511.0 5	100		4180.2	26+
5201.2 11	30+		510.0 7	100		4691.2	28+
5723.9 11	32+		522.7 4	100		5201.2	30+
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 2 - Kπ=0- Octupole-vibrational band.
780.45 5	1-
832.3 3	3-		685.0 1 787.8	100 14 113 Calc.		147.4 44.545	4+ 2+
927	5-
1070.8	7-		143.8 10 553.7 2 765.0 2	100 100 100 14		927 518.1 306.4	5- 8+ 6+
1242.8 4	9-		172.0 5 ? 465.0 5 725.7 2	38 32 77 42 100 24	(E1)	1070.8 778.6 518.1	7- 10+ 8+
1466.8 4	11-		224.0 3 382.8 2 689.0 2	39 26 26 21 100 19	(E2) (E1)	1242.8 1084.0 778.6	9- 12+ 10+
1733.4 4	13-		266.6 2 301.7 2 649.4 2	100 46 30 20 93 16	(E2) (E1)	1466.8 1431.7 1084.0	11- 14+ 12+
2040.6 4	15-		223.2 4 307.2 2 608.9 2	8.3 47 100 34 36 6	(E2) (E1)	1817.4 1733.4 1431.7	16+ 13- 14+
2386.9 4	17-
2769.3 5	19-
3185.1 5	21-
3631.0 5	23-		445.9 2 463.8 3	100 50 14 5	(E2)	3185.1 3167.2	21- 22+
4103.6 5	25-		435.9 3 472.6 3	5.0 25 100 63	(E2)	3667.7 3631.0	24+ 23-
4599.4 7	27-		495.8 4	100		4103.6	25-
5117.0 8	29-		517.6 4	100		4599.4	27-
5648.4 9	31-		531.4 4	100		5117.0	29-
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 3 - Kπ=3- band
1019.5 8	3-
1122	5-
1277.1 4	7-		760.0 5 971.3 5	<510 100 34	(E1)	518.1 306.4	8+ 6+
1478.5 4	9-		201.4 3 700.7 4 961.4 4	30 11 100 91 44 13	(E2) (E1)	1277.1 778.6 518.1	7- 10+ 8+
1724.9 4	11-		246.4 2 640.9 3 947.1 2	20 8 100 70 49 12	(E2) (E1) (E1)	1478.5 1084.0 778.6	9- 12+ 10+
2013.4 4	13-		288.5 2 929.4 2	32 30 100 18	(E2) (E1)	1724.9 1084.0	11- 12+
2339.5 4	15-		326.1 2 907.8 3	71 43 100 24	(E2) (E1)	2013.4 1431.7	13- 14+
2707.1 5	17-		367.6 2 889.7 4	100 44 37 10		2339.5 1817.4	15- 16+
3106.5 5	19-
3538.5 5	21-
4000.5 7	23-
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 4 - Kπ=0⁺ band
956	0+
992.5 3	(2+)		948.0 2	100		44.545	2+
1885.9 4	(12+)		801.9 2 1108.1 4	100 34 67 25		1084.0 778.6	12+ 10+
2170.8 4	(14+)		284.9 3 739.1 2 1086.8 2	100 54 67 20 80 27	(E2) (M1+E2) (E2)	1885.9 1431.7 1084.0	(12+) 14+ 12+
2483.6 4	(16+)		312.8 3 666.2 4 1051.9 2	84 37 47 16 100 21	(E2) (E2)	2170.8 1817.4 1431.7	(14+) 16+ 14+
2806.8 4	(18+)		323.2 2 569.3 3 989.4 2	83 29 100 21	(E2)	2483.6 2237.5 1817.4	(16+) 18+ 16+
3142.1 4	(20+)		335.3 2 453.5 3 904.6 2	46 26 100 23	(E2)	2806.8 2688.6 2237.5	(18+) 20+ 18+
3509.5 5	(22+)		367.4 2 820.9 3			3142.1 2688.6	(20+) 20+
3915.0 5	(24+)
4368.0 6	(26+)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 5 - Kπ=? band
1186.3 6	(7-)
1358.7 5	(9-)		172.4 4 841.6 5	92 62 100 46	(D)	1186.3 518.1	(7-) 8+
1577.9 4	(11-)		219.2 3 800.1 2	100 37 84 16	(E2)	1358.7 778.6	(9-) 10+
1842.2 4	(13-)		264.3 3 758.2 3	100 62 65 16	(E2)	1577.9 1084.0	(11-) 12+
2147.7 5	(15-)		305.35 3 716.0 4	<580 100 29		1842.2 1431.7	(13-) 14+
2494.7 5	(17-)		347.0 3 677.3 5	<1143 100 43		2147.7 1817.4	(15-) 16+
2879.2 5	(19-)		384.5 3 641.7 5			2494.7 2237.5	(17-) 18+
3297.5 6	(21-)		418.3 3	100		2879.2	(19-)
3747.2 7	(23-)
4221.5 8	(25-)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 6 - Kπ=? band
1995.7 4
2289.5 4			293.8 3 1205.5 3			1995.7 1084.0	12+
2616.8 5			327.3 3 1185.1 4			2289.5 1431.7	14+
2979.4 5			362.6 3 1162.0 4			2616.8 1817.4	16+
3374.3 6			394.9 4	100		2979.4
3799.6 8			425.3 4 ?	100		3374.3

E(level)	J^π(level)	T_1/2(level)	Comments
0.0	0+	3.73×10⁺⁵ y 2 % α = 100 % SF = 5.53×10^-4 5	The intrinsic quadrupole and hexadecapole moments were deduced by 1986Zu01 as Q(0)=11.901 63 and H(0)=2.08 (12) from measured muonic X-ray data (muons were stopped on a ²⁴²Pu target.) From Coulomb excitation, 1973Be44 deduced Q(0)=11.64 9 and H(0)=1.75 +71-87. From the intrinsic quadrupole and hexadecapole moments, the quadrupole and hexadecapole deformation parameters were obtained by 1986Zu01 as β(2)=0.2766 15 and β(4)=0.0498 52. E(level): The intrinsic quadrupole and hexadecapole moments were deduced by 1986Zu01 as Q(0)=11.901 63 and H(0)=2.08 (12) from measured muonic X-ray data (muons were stopped on a ²⁴²Pu target.) From Coulomb excitation, 1973Be44 deduced Q(0)=11.64 9 and H(0)=1.75 +71-87. From the intrinsic quadrupole and hexadecapole moments, the quadrupole and hexadecapole deformation parameters were obtained by 1986Zu01 as β(2)=0.2766 15 and β(4)=0.0498 52. Kπ=0⁺ GS band.
44.545	2+	160 ps 3	E(level): Kπ=0⁺ GS band.
147.4	4+		E(level): Kπ=0⁺ GS band.
306.4	6+		E(level): Kπ=0⁺ GS band.
518.1	8+		E(level): Kπ=0⁺ GS band.
778.6	10+		E(level): Kπ=0⁺ GS band.
780.45	1-		E(level): Kπ=0- Octupole-vibrational band.
832.3	3-		B(E3)=0.42 7 E(level): Kπ=0- Octupole-vibrational band.
927	5-		E(level): Kπ=0- Octupole-vibrational band. J^π(level): From (d,d’) based on intensity patterns and ratios of cross sections at θ=90\|’ and θ=125\|’.
1019.5	3-		B(E3)=0.45 7 E(level): Kπ=3- band.
1070.8	7-		E(level): Kπ=0- Octupole-vibrational band.
1084.0	12+		E(level): Kπ=0⁺ GS band.
1102	2+		B(E2)=0.157 18 J^π(level): From (d,d’) based on intensity patterns and ratios of cross sections at θ=90\|’ and θ=125\|’.
1122	5-		E(level): Kπ=3- band. J^π(level): From (d,d’) based on intensity patterns and ratios of cross sections at θ=90\|’ and θ=125\|’.
1186.3	(7-)		E(level): Kπ=? band.
1242.8	9-		E(level): Kπ=0- Octupole-vibrational band.
1277.1	7-		E(level): Kπ=3- band.
1358.7	(9-)		E(level): Kπ=? band.
1431.7	14+		E(level): Kπ=0⁺ GS band.
1466.8	11-		E(level): Kπ=0- Octupole-vibrational band.
1478.5	9-		E(level): Kπ=3- band.
1577.9	(11-)		E(level): Kπ=? band.
1650	(3-)		B(E3)=0.36 6 was extracted by 1972El08 from the (d,d’) cross section. E(level): B(E3)=0.36 6 was extracted by 1972El08 from the (d,d’) cross section.
1724.9	11-		E(level): Kπ=3- band.
1733.4	13-		E(level): Kπ=0- Octupole-vibrational band.
E(level)	J^π(level)	T_1/2(level)	Comments
1817.4	16+		E(level): Kπ=0⁺ GS band.
1842.2	(13-)		E(level): Kπ=? band.
1995.7			E(level): Kπ=? band.
2000		3.5 ns 6 % SF = ?	T_1/2 for SF isomer was calculated by 1972We09 (3.7 ns), 1971Ba30 (30 ns). 1992Bh03 (3.5 ns). E(level): T_1/2 for SF isomer was calculated by 1972We09 (3.7 ns), 1971Ba30 (30 ns). 1992Bh03 (3.5 ns).
2013.4	13-		E(level): Kπ=3- band.
2040.6	15-		E(level): Kπ=0- Octupole-vibrational band.
2147.7	(15-)		E(level): Kπ=? band.
2237.5	18+		E(level): Kπ=0⁺ GS band.
2289.5			E(level): Kπ=? band.
2339.5	15-		E(level): Kπ=3- band.
2386.9	17-		E(level): Kπ=0- Octupole-vibrational band.
2494.7	(17-)		E(level): Kπ=? band.
2616.8			E(level): Kπ=? band.
2688.6	20+		E(level): Kπ=0⁺ GS band.
2707.1	17-		E(level): Kπ=3- band.
2769.3	19-		E(level): Kπ=0- Octupole-vibrational band.
2879.2	(19-)		E(level): Kπ=? band.
2979.4			E(level): Kπ=? band.
3106.5	19-		E(level): Kπ=3- band.
3167.2	22+		E(level): Kπ=0⁺ GS band.
3185.1	21-		E(level): Kπ=0- Octupole-vibrational band.
3297.5	(21-)		E(level): Kπ=? band.
3374.3			E(level): Kπ=? band.
3538.5	21-		E(level): Kπ=3- band.
3631.0	23-		E(level): Kπ=0- Octupole-vibrational band.
E(level)	J^π(level)	T_1/2(level)	Comments
3667.7	24+		E(level): Kπ=0⁺ GS band.
3747.2	(23-)		E(level): Kπ=? band.
3799.6			E(level): Kπ=? band.
4000.5	23-		E(level): Kπ=3- band.
4103.6	25-		E(level): Kπ=0- Octupole-vibrational band.
4180.2	26+		E(level): Kπ=0⁺ GS band.
4221.5	(25-)		E(level): Kπ=? band.
4599.4	27-		E(level): Kπ=0- Octupole-vibrational band.
4691.2	28+		E(level): Kπ=0⁺ GS band.
5117.0	29-		E(level): Kπ=0- Octupole-vibrational band.
5201.2	30+		E(level): Kπ=0⁺ GS band.
5648.4	31-		E(level): Kπ=0- Octupole-vibrational band.
5723.9	32+		E(level): Kπ=0⁺ GS band.

E(level)	E(gamma)	Comments
44.545	44.545	M(γ): From ce data in 16.¹H ²⁴²Am ε decay.
147.4	102.8	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
306.4	159.1	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
518.1	211.3	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
778.6	260.7	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
832.3	787.8	E(γ): From (n,γ). Transition is obscured in 2.2-min ²⁴²Np β- decay
1039.2	1039.2	E(γ): Eγ=1039.9 14 from (n,γ): E=primary.. Multiply placed with undivided intensity I(γ): The 1871.4 level, the parent of the alternate placement, is not populated in (n,γ).. Multiply placed with undivided intensity
1084.0	306.2	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
1181.6	1137.1	I(γ): 1979Ha26 in 2.2-min β decay point out that Iγ relative to the other intensities deexciting the 1181.6 level is much higher than expected based on the Alaga rule. They suggest that the 1137.1γ might be a doublet with a second and stronger component as yet unplaced.
1242.8	725.7	M(γ): From mult=d in Coulomb excitation from angular distribution measurements and placement in the level scheme.
1277.1	971.3	M(γ): From mult=d in Coulomb excitation from angular distribution measurements and placement in the level scheme.
1358.7	841.6	M(γ): From mult=d in Coulomb excitation from angular distribution measurements and placement in the level scheme.
1431.7	347.7	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
1466.8	224.0	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
1466.8	689.0	M(γ): From mult=d in Coulomb excitation from angular distribution measurements and placement in the level scheme.
1478.5	201.4	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
1478.5	961.4	M(γ): From mult=d in Coulomb excitation from angular distribution measurements and placement in the level scheme.
1577.9	219.2	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
1724.9	246.4	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
	640.9	M(γ): From mult=d in Coulomb excitation from angular distribution measurements and placement in the level scheme.
	947.1	M(γ): From mult=d in Coulomb excitation from angular distribution measurements and placement in the level scheme.
1733.4	266.6	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
1733.4	649.4	M(γ): From mult=d in Coulomb excitation from angular distribution measurements and placement in the level scheme.
1817.4	385.7	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
1842.2	264.3	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
E(level)	E(gamma)	Comments
1871.4	1039.2	E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity
2013.4	288.5	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.. The assignment as Q in Coulomb excitation is tentative.
2013.4	929.4	M(γ): From mult=d in Coulomb excitation from angular distribution measurements and placement in the level scheme.
2040.6	307.2	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
2040.6	608.9	M(γ): From mult=d in Coulomb excitation from angular distribution measurements and placement in the level scheme.
2170.8	284.9	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
	739.1	M(γ): From mult=D+Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.. The assignment as D+Q in Coulomb excitation is tentative.
	1086.8	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.. The assignment as Q in Coulomb excitation is tentative.
2237.5	420.1	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
2339.5	326.1	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.. The assignment as Q in Coulomb excitation is tentative.
2339.5	907.8	M(γ): From mult=d in Coulomb excitation from angular distribution measurements and placement in the level scheme.. The assignment as d in Coulomb excitation is tentative.
2386.9	346.3	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
2386.9	569.5	M(γ): From mult=d in Coulomb excitation from angular distribution measurements and placement in the level scheme.
2483.6	312.8	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.. The assignment as Q in Coulomb excitation is tentative.
2483.6	1051.9	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
2688.6	451.1	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
2769.3	382.4	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
2769.3	531.8	M(γ): From mult=d in Coulomb excitation from angular distribution measurements and placement in the level scheme.
2806.8	323.2	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.. The assignment as Q in Coulomb excitation is tentative.
3142.1	335.3	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.. The assignment as Q in Coulomb excitation is tentative.
3167.2	478.6	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
3185.1	415.8	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
3185.1	496.5	M(γ): From mult=d in Coulomb excitation from angular distribution measurements and placement in the level scheme.
3631.0	445.9	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
3667.7	500.5	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.
E(level)	E(gamma)	Comments
4103.6	472.6	M(γ): From mult=Q in Coulomb excitation from angular distribution measurements and placement in the level scheme.