List of levels for 211PO

Authors: J.K. Tuli, P. Blokhin, J. Kaur, J.Y. Lee and N. Sharma | Citation: Nucl. Data Sheets 114, 661 (2013) | Cutoff date: 28-FEB-2013

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Mixing Ratio	Conversion Coefficient	Additional Data
687.2	11/2+		687.1 5	M1+E2	-0.20 2	0.0536	α=0.0536 9, α(K)=0.0438 7, α(L)=0.00752 12, α(M)=0.00177 3, α(N)=0.000455 7, α(O)=9.52×10^-5 15, α(P)=1.231E-5 19
1050.9	5/2+		1050.9 5	E2		0.00668	α=0.00668 10, α(K)=0.00530 8, α(L)=0.001052 15, α(M)=0.000252 4, α(N)=6.47×10^-5 9, α(O)=1.332E-5 19, α(P)=1.631E-6 23
1064.8	15/2-	14.0 ns 2	377.6 5	M2		0.878	B(M2)(W.u.)=0.340 25, α=0.878, α(K)=0.668 10, α(L)=0.1584 24, α(M)=0.0390 6, α(N)=0.01011 15, α(O)=0.00210 3, α(P)=0.000265 4
1064.8	15/2-	14.0 ns 2	1064.9 5	E3		0.01499	B(E3)(W.u.)=19.2 9, α=0.01499, α(K)=0.01105 16, α(L)=0.00297 5, α(M)=0.000736 11, α(N)=0.000190 3, α(O)=3.86E-5 6, α(P)=4.55E-6 7
1121.8	7/2+		1122.0	M1+E2	+0.15 2	0.01525	α=0.01525 23, α(K)=0.01249 19, α(L)=0.00211 3, α(M)=0.000494 8, α(N)=0.0001272 19, α(O)=2.66×10^-5 4, α(P)=3.46E-6 5
1160.6	(9/2+)		1160.6 5	(E2+M1)	3.1	0.00635	α=0.00635 9, α(K)=0.00510 8, α(L)=0.000948 14, α(M)=0.000225 4, α(N)=5.79×10^-5 9, α(O)=1.198E-5 17, α(P)=1.496E-6 21
1181.4	(13/2+)		1181.4 5	(E2)		0.00535	α=0.00535 8, α(K)=0.00428 6, α(L)=0.000812 12, α(M)=0.000193 3, α(N)=4.97×10^-5 7, α(O)=1.025E-5 15, α(P)=1.270E-6 18
1385.1	(3/2)+		334.3 5	E2		0.0918	α=0.0918, α(K)=0.0525 8, α(L)=0.0294 5, α(M)=0.00758 12, α(N)=0.00195 3, α(O)=0.000381 6, α(P)=3.88×10^-5 6
1407.3	(+)		285.4	(M1)		0.579	α=0.579, α(K)=0.471 7, α(L)=0.0825 12, α(M)=0.0194 3, α(N)=0.00500 7, α(O)=0.001047 15, α(P)=0.0001353 19
1409.3	(+)		287.7 5	(M1)		0.567	α=0.567, α(K)=0.461 7, α(L)=0.0807 12, α(M)=0.0190 3, α(N)=0.00489 8, α(O)=0.001024 16, α(P)=0.0001324 20
1427.8	(17/2+)		363.0 5	(E1)		0.0204	α=0.0204, α(K)=0.01668 24, α(L)=0.00283 4, α(M)=0.000664 10, α(N)=0.0001697 25, α(O)=3.48×10^-5 5, α(P)=4.26E-6 7
1436.6	(5/2+,7/2+,9/2+)		276.0 5	(E2)		0.1624	α=0.1624 25, α(K)=0.0809 12, α(L)=0.0608 10, α(M)=0.01585 25, α(N)=0.00407 7, α(O)=0.000791 13, α(P)=7.79×10^-5 13
1436.6	(5/2+,7/2+,9/2+)		314.7	(M1)		0.443	α=0.443, α(K)=0.361 5, α(L)=0.0630 9, α(M)=0.01485 21, α(N)=0.00382 6, α(O)=0.000800 12, α(P)=0.0001034 15
1443.1	3/2+,5/2+,7/2+		392.1 5	M1+E2	+0.10 3	0.242	α=0.242, α(K)=0.197 3, α(L)=0.0344 6, α(M)=0.00810 12, α(N)=0.00208 3, α(O)=0.000436 7, α(P)=5.63×10^-5 9
1462	(25/2+)	25.2 s 6 % IT = 0.016 4 % α = 99.984 4	34 5	(E4)		6.5×10⁶	B(E4)(W.u.)=0.7 +11-7, α=6.5E6 50
1508.3	(+)		386.5 5	(M1)		0.254	α=0.254, α(K)=0.207 3, α(L)=0.0359 6, α(M)=0.00846 13, α(N)=0.00218 4, α(O)=0.000456 7, α(P)=5.89×10^-5 9
1509.6	(+)		458.7	(M1)		0.1603	α=0.1603, α(K)=0.1307 19, α(L)=0.0226 4, α(M)=0.00532 8, α(N)=0.001369 20, α(O)=0.000287 4, α(P)=3.71×10^-5 6
1517.2	(+)		356.6 5	(M1)		0.316	α=0.316, α(K)=0.257 4, α(L)=0.0447 7, α(M)=0.01054 16, α(N)=0.00271 4, α(O)=0.000568 9, α(P)=7.34×10^-5 11
1585.1	(+)		534.2 5	(M1)		0.1069	α=0.1069, α(K)=0.0872 13, α(L)=0.01502 22, α(M)=0.00353 5, α(N)=0.000909 13, α(O)=0.000190 3, α(P)=2.46×10^-5 4
1614.5	(5/2+,7/2+)		492.6	(M1)		0.1326	α=0.1326, α(K)=0.1081 16, α(L)=0.0187 3, α(M)=0.00439 7, α(N)=0.001130 16, α(O)=0.000237 4, α(P)=3.06×10^-5 5
1614.5	(5/2+,7/2+)		563.7	(M1+E2)	1.35	0.0485	α=0.0485, α(K)=0.0380 6, α(L)=0.00797 12, α(M)=0.00192 3, α(N)=0.000494 7, α(O)=0.0001016 15, α(P)=1.241×10^-5 18
1637.8	(+)		516.0 5	(M1)		0.1172	α=0.1172, α(K)=0.0956 14, α(L)=0.01648 24, α(M)=0.00388 6, α(N)=0.000998 15, α(O)=0.000209 3, α(P)=2.70×10^-5 4
1696.6	(+)		268.8 5	(M1)		0.683	α=0.683, α(K)=0.556 9, α(L)=0.0973 15, α(M)=0.0229 4, α(N)=0.00591 9, α(O)=0.001236 19, α(P)=0.0001598 24
1739.6	(+)		296.4	(M1)		0.522	α=0.522, α(K)=0.425 6, α(L)=0.0743 11, α(M)=0.01751 25, α(N)=0.00451 7, α(O)=0.000943 14, α(P)=0.0001219 17
1739.6	(+)		354.6	(M1)		0.320	α=0.320, α(K)=0.261 4, α(L)=0.0454 7, α(M)=0.01070 15, α(N)=0.00275 4, α(O)=0.000576 8, α(P)=7.45×10^-5 11
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Mixing Ratio	Conversion Coefficient	Additional Data
1819	(27/2+)		357.3 5	(M1)		0.314	α=0.314, α(K)=0.256 4, α(L)=0.0445 7, α(M)=0.01048 16, α(N)=0.00270 4, α(O)=0.000565 9, α(P)=7.30×10^-5 11
2077.1	(+)		462.6	(M1)		0.1567	α=0.1567, α(K)=0.1278 18, α(L)=0.0221 3, α(M)=0.00520 8, α(N)=0.001338 19, α(O)=0.000280 4, α(P)=3.62×10^-5 5
2094.2	(+)		354.6	(M1)		0.320	α=0.320, α(K)=0.261 4, α(L)=0.0454 7, α(M)=0.01070 15, α(N)=0.00275 4, α(O)=0.000576 8, α(P)=7.45×10^-5 11
2135	(31/2-)	243 ns 21 % IT ≈ 100	315.4 5	(M2)		1.569	B(M2)(W.u.)=0.100 20, α=1.569, α(K)=1.177 18, α(L)=0.296 5, α(M)=0.0733 11, α(N)=0.0190 3, α(O)=0.00396 6, α(P)=0.000497 8
2135	(31/2-)	243 ns 21 % IT ≈ 100	672.7 5	E3		0.0461	B(E3)(W.u.)=22.5 23, α=0.0461, α(K)=0.0288 4, α(L)=0.01295 19, α(M)=0.00333 5, α(N)=0.000859 13, α(O)=0.0001715 25, α(P)=1.87E-5 3
3442	(37/2+)	≤ 2 ns	1307.5 5	E3		0.00957	B(E3)(W.u.)>32, α=0.00957 14, α(K)=0.00732 11, α(L)=0.001697 24, α(M)=0.000414 6, α(N)=0.0001066 15, α(O)=2.19E-5 3, α(P)=2.64E-6 4
4872	(43/2+)	2.8 µs 7 % IT ≈ 100	508.6 5	[E3]		0.1040	B(E3)(W.u.)=17 5, α=0.1040, α(K)=0.0533 8, α(L)=0.0377 6, α(M)=0.00990 15, α(N)=0.00256 4, α(O)=0.000504 8, α(P)=5.24E-5 8

Q(β-)=-785.3 keV 25	S(n)= 4550.7 keV 5	S(p)= 4929.6 keV 9	Q(α)= 7594.5 keV 5
Reference: 2012WA38

References:
A	²¹¹Bi β^- decay	B	²¹¹Po IT decay (25.3 S)
C	²¹¹At ε decay	D	²¹⁵Rn α decay
E	²⁰⁸Pb(α,nγ)	F	²⁰⁸Pb(⁹Be,α2nγ)
G	²⁰⁸Pb(⁷⁶Ge,xγ)	H	²⁰⁹Bi(d,γ)
I	²¹⁰Po(d,p)

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	9/2+	0.516 s 3 % α = 100
687.2 4	B C E F I	11/2+		687.1 5	100	M1+E2	0.0	9/2+
1050.9 5	E F I	5/2+		1050.9 5	100	E2	0.0	9/2+
1064.8 4	B E F	15/2-	14.0 ns 2	377.6 5 1064.9 5	4.6 3 100 3	M2 E3	687.2 0.0	11/2+ 9/2+
1121.8 4	E F I	7/2+		1122.0	100	M1+E2	0.0	9/2+
1160.6 4	E F I	(9/2+)		1160.6 5	100	(E2+M1)	0.0	9/2+
1181.4 4	E F	(13/2+)		494.2 5 1181.4 5	5.2 11 100 25	(E2)	687.2 0.0	11/2+ 9/2+
1385.1 7	E F I	(3/2)+		334.3 5	100	E2	1050.9	5/2+
1407.3 8	E F	(+)		246.5? 285.4 1407.5	7 35 100	(M1)	1160.6 1121.8 0.0	(9/2+) 7/2+ 9/2+
1409.3 4	E F	(+)		248.8 5 ? 287.7 5 1409.2 5	≤3 72 20 100 8	(M1)	1160.6 1121.8 0.0	(9/2+) 7/2+ 9/2+
1427.8 7	B E F	(17/2+)		363.0 5	100	(E1)	1064.8	15/2-
1427.8+X	E F		25.0 ns 14	XS			1427.8	(17/2+)
1436.6 4	E F I	(5/2+,7/2+,9/2+)		276.0 5 314.7 1436.7 5	≤7 15 100 13	(E2) (M1)	1160.6 1121.8 0.0	(9/2+) 7/2+ 9/2+
1443.1 7	E F I	3/2+,5/2+,7/2+		392.1 5	100	M1+E2	1050.9	5/2+
1458.9 7	E F	(15/2+)		277.5 5	100		1181.4	(13/2+)
1462 5	B F H	(25/2+)	25.2 s 6 % IT = 0.016 4 % α = 99.984 4	34 5 S	100	(E4)	1427.8	(17/2+)
1508.3 6	E F	(+)		347.7 386.5 5	7 100	(M1)	1160.6 1121.8	(9/2+) 7/2+
1509.6 11	E	(+)		458.7	100	(M1)	1050.9	5/2+
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
1517.2 7	E F	(+)		356.6 5	100	(M1)	1160.6	(9/2+)
1541.8 9	E F			114.0 5	100		1427.8	(17/2+)
1577.9 9	E F	(1/2)	3.5 ns	192.8 5	100		1385.1	(3/2)+
1579.9 9	F			152.1 5	100		1427.8	(17/2+)
1585.1 7	E F	(+)		534.2 5	100	(M1)	1050.9	5/2+
1612.4 7	F			561.5 5	100		1050.9	5/2+
1614.5 7	E F	(5/2+,7/2+)		171.4 492.6 563.7	36 100 98	(M1) (M1+E2)	1443.1 1121.8 1050.9	3/2+,5/2+,7/2+ 7/2+ 5/2+
1615.6 12	E F			187.8	100		1427.8	(17/2+)
1637.8 6	E F	(+)		477.1 516.0 5	55 100	(M1)	1160.6 1121.8	(9/2+) 7/2+
1656.8+X 5	F			229.0 5	100		1427.8+X
1696.6 9	E F	(+)		268.8 5	100	(M1)	1427.8	(17/2+)
1716.2 7	E F			1029.0 5	100		687.2	11/2+
1727.2 11	E			1040.0	100		687.2	11/2+
1736.0+X 6	E F			308.1	100		1427.8+X
1739.6 9	E	(+)		296.4 354.6	100 <124	(M1) (M1)	1443.1 1385.1	3/2+,5/2+,7/2+ (3/2)+
1786.3 9	F			358.5 5	100		1427.8	(17/2+)
1798.0 7	E F			1110.8 5	100		687.2	11/2+
1799 10	I	3/2+,5/2+
1809.2?	E			1122.2?	≈100		687.2	11/2+
1819 5	F G	(27/2+)		357.3 5	100	(M1)	1462	(25/2+)
1852.5 9	F			424.7 5	100		1427.8	(17/2+)
1876.9 11	E			1189.7	100		687.2	11/2+
1902.8+X 5	F			475.0 5	100		1427.8+X
1904.3+X 8	F			168.3 5	100		1736.0+X
1914.7 9	F			486.9 5	100		1427.8	(17/2+)
1939.1+X 5	F			511.3 5	100		1427.8+X
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
1944.3 7	E F			1257.1 5	100		687.2	11/2+
1978.3+X 5	F			550.5 5	100		1427.8+X
1994.9+X 5	F			258.9 5 567.1 5	46 8 100 15		1736.0+X 1427.8+X
2023.9 11	E I			973.0	100		1050.9	5/2+
2029.5 11	E			907.7	100		1121.8	7/2+
2034.5 11	E			983.6	100		1050.9	5/2+
2077.1 13	E	(+)		462.6	100	(M1)	1614.5	(5/2+,7/2+)
2079.0?	E			1028.4?	100		1050.9	5/2+
2084 10	I	1/2+
2093.7 9	F			665.9 5	100		1427.8	(17/2+)
2094.2 10	E	(+)		354.6 651.1	<150 100	(M1)	1739.6 1443.1	(+) 3/2+,5/2+,7/2+
2104.3+X 5	F			676.5 5	100		1427.8+X
2112.2 9	E			669.0 1061.5	31 100		1443.1 1050.9	3/2+,5/2+,7/2+ 5/2+
2135 5	F G	(31/2-)	243 ns 21 % IT ≈ 100	315.4 5 672.7 5	11.7 18 100 3	(M2) E3	1819 1462	(27/2+) (25/2+)
2161 10	I	(1/2+)
2186.9+X 5	F			759.1 5	100		1427.8+X
2218.8 9	F			791.0 5	100		1427.8	(17/2+)
2223.6 10	E F			645.7 5	100		1577.9	(1/2)
2277.9 7	E F			1227.0 5	100		1050.9	5/2+
2298.0 12	E			854.9	100		1443.1	3/2+,5/2+,7/2+
2300.2 12	E			915.1	100		1385.1	(3/2)+
2315 10	I
2339.6 8	E F			896.5 5	100		1443.1	3/2+,5/2+,7/2+
2353.2 9	F			925.4 5	100		1427.8	(17/2+)
2364 10	I
2390 10	I
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
2414 10	I
2431.4 9	F			1003.6 5	100		1427.8	(17/2+)
2443.2+X 5	F			1015.4 5			1427.8+X
2456 10	I
2547.8 13	E			969.9	100		1577.9	(1/2)
2560 10	I
2606 10	I	7/2+,9/2+
2639 10	I	7/2+,9/2+
2661 10	I	3/2+,5/2+
2691 10	I
2753 10	I
2839 5	F			704.5 5	100		2135	(31/2-)
2862 10	I	7/2+,9/2+
2865 5	F G	(33/2-)		730.9 5	100		2135	(31/2-)
2910 10	I	3/2+,5/2+
2990 10	I
3003 10	I
3043 10	I
3067 10	I
3175 10	I
3252 10	I
3384 10	I
3436 10	I
3442 5	F G	(37/2+)	≤ 2 ns	576.5 5 1307.5 5	10 5 100 10	E3	2865 2135	(33/2-) (31/2-)
3754 10	I
3869 10	I
4364 5	F G	(37/2-)		921.5 5 1498.1 5	100 16 12 4		3442 2865	(37/2+) (33/2-)
4872 6	F G	(43/2+)	2.8 µs 7 % IT ≈ 100	508.6 5	100	[E3]	4364	(37/2-)
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
4911 5	F			1469.3 5	100		3442	(37/2+)

E(level)	J^π(level)	T_1/2(level)	Comments
0.0	9/2+	0.516 s 3 % α = 100	μ=-1.197 85 (2014Se07), Q=-0.77 8 (2014Se07) \|4β₂²\|5^1/2=0.12 (2013Se03,2014Se07).
1385.1	(3/2)+		XREF: I(1378). E(level): It is possible that the levels seen at 1378 and 1385.2 keV are the same with Jπ=3/2⁺.
1436.6	(5/2+,7/2+,9/2+)		E(level): An L=(2) transition populates a level at E=1436 10 (1979Bh01). It is not clear whether this is the same level seen at 1436.6 keV (which will then have Jπ=5/2⁺), or that seen at 1443.0 keV (with Jπ=3/2⁺ or 5/2⁺), or the transition populates both levels.
1443.1	3/2+,5/2+,7/2+		E(level): An L=(2) transition populates a level at E=1436 10 (1979Bh01). It is not clear whether this is the same level seen at 1436.6 keV (which will then have Jπ=5/2⁺), or that seen at 1443.0 keV (with Jπ=3/2⁺ or 5/2⁺), or the transition populates both levels.
1509.6	(+)		E(level): From ²⁰⁸Pb(α,nγ).
1819	(27/2+)		Configuration=((π h_9/2)⁺²(ν i_11/2)) (1998Fo04). E(level): Configuration=((π h_9/2)⁺²(ν i_11/2)) (1998Fo04).
2023.9			E(level): From ²⁰⁸Pb(α,nγ).

E(level)	E(gamma)	Comments
687.2	687.1	M(γ): From ce data; γ(θ) in ²⁰⁸Pb(α,nγ) (1981Fa01).
1050.9	1050.9	M(γ): from K/L ratio
1064.8	377.6	M(γ): From ce data in ²⁰⁸Pb(α,nγ) (1981Fa01).
1064.8	1064.9	M(γ): from ce data and γ(θ,H,t) in ²⁰⁸Pb(α,nγ).
1121.8	1122.0	M(γ): From ce data; γ(θ) in ²⁰⁸Pb(α,nγ) (1981Fa01).
1181.4	1181.4	M(γ): γ(θ) suggests E2.
1385.1	334.3	M(γ): From ce data in ²⁰⁸Pb(α,nγ) (1981Fa01).
1409.3	287.7	I(γ): 31 from (α,nγ) is in disagreement
1427.8+X	X	E(γ): x \|<50 (1998Mc03)
1443.1	392.1	M(γ): From ce data; γ(θ) in ²⁰⁸Pb(α,nγ) (1981Fa01).
1462	34	E(γ): γ not observed, deduced from level scheme (1989Ku08). M(γ): Weisskopf estimates suggest E4 or M4; ΔJπ from shell model prediction suggests E4
1509.6	458.7	E(γ): From ²⁰⁸Pb(α,nγ)
1739.6	354.6	E(γ): Multiply placed with undivided intensity. Coincidence data in ²⁰⁸Pb(α,nγ) shows this γ to be a doublet (1981Fa01). I(γ): Multiply placed with undivided intensity
1819	357.3	M(γ): From γ-ray transition intensity balance in ²⁰⁸Pb(⁷⁶Ge,Xγ).
2094.2	354.6	E(γ): Multiply placed with undivided intensity. Coincidence data in ²⁰⁸Pb(α,nγ) shows this γ to be a doublet (1981Fa01). I(γ): Multiply placed with undivided intensity
2135	315.4	M(γ): From γ-ray transition intensity balance in ²⁰⁸Pb(⁷⁶Ge,Xγ).
2135	672.7	M(γ): From γ(θ) and γ-ray transition intensity balance in ²⁰⁸Pb(⁹Be,α2nγ), ²⁰⁸Pb(⁷Li,p3nγ).
3442	1307.5	M(γ): From γ(θ) and γ-ray transition intensity balance in ²⁰⁸Pb(⁹Be,α2nγ), ²⁰⁸Pb(⁷Li,p3nγ).
4872	508.6	M(γ): Expected E3, similar to 686γ, 16⁺ to 13- transition in ²¹⁰Po (1998Fo04)