List of levels for 219FR

Authors: Balraj Singh Et Al., | Citation: Nucl. Data Sheets 175, 1 (2021) | Cutoff date: 19-May-2021

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Mixing Ratio	Conversion Coefficient	Additional Data
15.0	(5/2-)		15.0	[E2]		2.36×10⁴	α=2.36×10⁴, α(M)=1.786E4 25, α(N)=4.66E3 7, α(O)=959 14, α(P)=120.9 17, α(Q)=0.1125 16
56.1	(3/2-)		41.15 10	(M1+E2)	1.0 2	3.3×10²	α=3.3×10² 7, α(L)=2.4E2 5, α(M)=65 13, α(N)=17 4, α(O)=3.5 7, α(P)=0.46 9, α(Q)=0.0024 3
73	(13/2-)		72.8	[E2]		39.4	α=39.4, α(L)=29.0 4, α(M)=7.84 11, α(N)=2.05 3, α(O)=0.425 6, α(P)=0.0544 8, α(Q)=0.0001003 14
81.0	(1/2-)		66.0 5	[E2]		63	α=63 3, α(L)=46.4 19, α(M)=12.5 5, α(N)=3.28 13, α(O)=0.68 3, α(P)=0.087 4, α(Q)=0.000149 6
98.58	(7/2-)		42.4 1	(E2)		538	α=538 10, α(L)=397 8, α(M)=106.8 20, α(N)=27.9 5, α(O)=5.76 11, α(P)=0.733 14, α(Q)=0.001019 18
	(7/2-)		83.55 10	(M1)		4.75	α=4.75, α(L)=3.60 6, α(M)=0.859 13, α(N)=0.225 4, α(O)=0.0504 8, α(P)=0.00808 12, α(Q)=0.000452 7
	(7/2-)		98.58 5	(M1)		2.94	α=2.94, α(L)=2.23 4, α(M)=0.532 8, α(N)=0.1395 20, α(O)=0.0312 5, α(P)=0.00500 7, α(Q)=0.000279 4
134.4	(5/2-)		35.7 1	(M1)		57.5	α=57.5 10, α(L)=43.6 8, α(M)=10.41 17, α(N)=2.73 5, α(O)=0.611 10, α(P)=0.0979 16, α(Q)=0.00549 9
	(5/2-)		78.25 10	[M1]		5.75	α=5.75, α(L)=4.36 7, α(M)=1.040 15, α(N)=0.273 4, α(O)=0.0610 9, α(P)=0.00978 15, α(Q)=0.000547 8
	(5/2-)		119.4 1	(M1)		8.65	α=8.65, α(K)=6.96 10, α(L)=1.283 19, α(M)=0.306 5, α(N)=0.0802 12, α(O)=0.0179 3, α(P)=0.00288 4, α(Q)=0.0001607 23
139.8	(3/2-)		124.8 1	(M1)		7.63	α=7.63, α(K)=6.14 9, α(L)=1.130 16, α(M)=0.269 4, α(N)=0.0706 10, α(O)=0.01579 23, α(P)=0.00253 4, α(Q)=0.0001414 20
191.29	(7/2+)		56.95 20	[E1]		0.481	α=0.481 9, α(L)=0.365 7, α(M)=0.0886 15, α(N)=0.0227 4, α(O)=0.00473 8, α(P)=0.000634 11, α(Q)=1.93×10^-5 3
	(7/2+)		92.71 5	[E1]		0.1309	α=0.1309, α(L)=0.0993 14, α(M)=0.0239 4, α(N)=0.00616 9, α(O)=0.001310 19, α(P)=0.000185 3, α(Q)=6.59×10^-6 10
	(7/2+)		176.3 2	[E1]		0.1194	α=0.1194, α(K)=0.0951 14, α(L)=0.0185 3, α(M)=0.00441 7, α(N)=0.001145 17, α(O)=0.000248 4, α(P)=3.68×10^-5 6, α(Q)=1.545E-6 22
	(7/2+)		191.3 1	[E1]		0.098	α=0.098, α(K)=0.0783 11, α(L)=0.0150 2, α(M)=0.00358 5, α(N)=0.000930 13, α(O)=0.000202 3, α(P)=3.01×10^-5 5, α(Q)=1.287E-6 18
210.4	(3/2+)		195.4 2	(E1)		0.0932	α=0.0932, α(K)=0.0745 11, α(L)=0.01424 21, α(M)=0.00340 5, α(N)=0.000881 13, α(O)=0.000191 3, α(P)=2.86×10^-5 4, α(Q)=1.227E-6 18
216.0	(11/2+)		216.0 1	[E1]		0.0734	α=0.0734, α(K)=0.0588 9, α(L)=0.01107 16, α(M)=0.00264 4, α(N)=0.000685 10, α(O)=0.0001491 21, α(P)=2.24×10^-5 4, α(Q)=9.82E-7 14
269.2	(7/2-)		134.6 3	[M1+E2]		4.3	α=4.3 18, α(K)=2.6 24, α(L)=1.28 37, α(M)=0.33 12, α(N)=0.087 30, α(O)=0.0185 58, α(P)=0.0026 6, α(Q)=6.3×10^-5 51
	(7/2-)		254.4 3	[M1+E2]		0.63	α=0.63 40, α(K)=0.46 37, α(L)=0.128 23, α(M)=0.032 4, α(N)=0.0084 10, α(O)=0.0018 3, α(P)=0.00027 7, α(Q)=1.06×10^-5 82
	(7/2-)		269.2 1	[M1+E2]		0.54	α=0.54 34, α(K)=0.40 31, α(L)=0.107 22, α(M)=0.027 4, α(N)=0.0070 11, α(O)=0.0015 3, α(P)=2.28×10^-4 60, α(Q)=9.1E-6 70
305.5	(9/2-)		89.6 2	[E1]		0.1433	α=0.1433 22, α(L)=0.1087 17, α(M)=0.0262 4, α(N)=0.00675 11, α(O)=0.001433 22, α(P)=0.000202 3, α(Q)=7.11×10^-6 11
	(9/2-)		207.0 2	[M1+E2]		1.2	α=1.2 7, α(K)=0.8 7, α(L)=0.258 11, α(M)=0.0652 17, α(N)=0.0171 5, α(O)=0.00370 7, α(P)=0.00054 6, α(Q)=1.9×10^-5 15
	(9/2-)		305.5 1	[M1+E2]		0.38	α=0.38 25, α(K)=0.28 22, α(L)=0.071 20, α(M)=0.018 4, α(N)=0.0046 11, α(O)=1.01×10^-3 26, α(P)=1.53E-4 50, α(Q)=6.5E-6 49
333.5	(11/2-)		64.4 3	[E2]		70.8	α=70.8 19, α(L)=52.2 14, α(M)=14.1 4, α(N)=3.69 10, α(O)=0.764 21, α(P)=0.098 3, α(Q)=0.000164 4
333.5	(11/2-)		333.5 1	[M1+E2]		0.30	α=0.30 19, α(K)=0.22 17, α(L)=0.054 17, α(M)=0.0133 36, α(N)=0.00350 94, α(O)=7.7×10^-4 23, α(P)=1.17E-4 42, α(Q)=5.1E-6 38
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Mixing Ratio	Conversion Coefficient	Additional Data
340.3	(5/2+)		205.7 3	[E1]		0.0824	α=0.0824, α(K)=0.0659 10, α(L)=0.01251 19, α(M)=0.00298 5, α(N)=0.000774 12, α(O)=0.0001683 25, α(P)=2.52×10^-5 4, α(Q)=1.095E-6 16
	(5/2+)		241.7 2	[E1]		0.0563	α=0.0563, α(K)=0.0452 7, α(L)=0.00839 12, α(M)=0.00200 3, α(N)=0.000519 8, α(O)=0.0001131 16, α(P)=1.709×10^-5 25, α(Q)=7.67E-7 11
	(5/2+)		284.2 1	[E1]		0.0387	α=0.0387, α(K)=0.0312 5, α(L)=0.00567 8, α(M)=0.001346 19, α(N)=0.000350 5, α(O)=7.66×10^-5 11, α(P)=1.167E-5 17, α(Q)=5.39E-7 8
	(5/2+)		325.3 1	[E1]		0.0285	α=0.0285, α(K)=0.0231 4, α(L)=0.00412 6, α(M)=0.000977 14, α(N)=0.000254 4, α(O)=5.58×10^-5 8, α(P)=8.55E-6 12, α(Q)=4.05E-7 6
369.5	(3/2+)		229.7 2	[E1]		0.0634	α=0.0634, α(K)=0.0509 8, α(L)=0.00951 14, α(M)=0.00226 4, α(N)=0.000588 9, α(O)=0.0001281 19, α(P)=1.93×10^-5 3, α(Q)=8.57E-7 13
372.4	(7/2+)		238.1 2	[E1]		0.0583	α=0.0583, α(K)=0.0468 7, α(L)=0.00870 13, α(M)=0.00207 3, α(N)=0.000538 8, α(O)=0.0001173 17, α(P)=1.77×10^-5 3, α(Q)=7.92E-7 12
	(7/2+)		274.0 2	[E1]		0.0421	α=0.0421, α(K)=0.0339 5, α(L)=0.00618 9, α(M)=0.001470 21, α(N)=0.000382 6, α(O)=8.35×10^-5 12, α(P)=1.271E-5 18, α(Q)=5.84E-7 9
	(7/2+)		357.4 1	[E1]		0.0232	α=0.0232, α(K)=0.0188 3, α(L)=0.00332 5, α(M)=0.000786 11, α(N)=0.000204 3, α(O)=4.49×10^-5 7, α(P)=6.91E-6 10, α(Q)=3.33E-7 5
	(7/2+)		372.4 1	[E1]		0.0212	α=0.0212, α(K)=0.01720 25, α(L)=0.00302 5, α(M)=0.000715 10, α(N)=0.000186 3, α(O)=4.09×10^-5 6, α(P)=6.31E-6 9, α(Q)=3.05E-7 5
374.8	(7/2)		374.8 2	[D,E2]		0.19	α=0.19 17
384.3	(5/2+)		285.7 1	[E1]		0.0382	α=0.0382, α(K)=0.0309 5, α(L)=0.00560 8, α(M)=0.001329 19, α(N)=0.000346 5, α(O)=7.56×10^-5 11, α(P)=1.152E-5 17, α(Q)=5.33E-7 8
432.0	(9/2)		126.4 2	[D,E2]		3.8	α=3.8 35
432.0	(9/2)		216.1 2	[D,E2]		0.84	α=0.84 77
462.2	(9/2+)		462.2 5	[E1]		0.01339	α=0.01339, α(K)=0.01093 16, α(L)=0.00187 3, α(M)=0.000442 7, α(N)=0.0001152 17, α(O)=2.54×10^-5 4, α(P)=3.95E-6 6, α(Q)=1.98E-7 3
490.3	(5/2-)		279.8 3	[E1]		0.0401	α=0.0401, α(K)=0.0323 5, α(L)=0.00588 9, α(M)=0.001398 20, α(N)=0.000363 6, α(O)=7.95×10^-5 12, α(P)=1.210E-5 18, α(Q)=5.58E-7 8
	(5/2-)		299.1 2	[E1]		0.0344	α=0.0344, α(K)=0.0278 4, α(L)=0.00502 7, α(M)=0.001191 17, α(N)=0.000310 5, α(O)=6.78×10^-5 10, α(P)=1.036E-5 15, α(Q)=4.84E-7 7
	(5/2-)		434.2 1	[M1+E2]		0.145	α=0.145 93, α(K)=0.112 81, α(L)=0.025 10, α(M)=0.0060 23, α(N)=0.00158 59, α(O)=3.5×10^-4 14, α(P)=5.4E-5 24, α(Q)=2.5E-6 18
	(5/2-)		475.2 1	[M1+E2]		0.114	α=0.114 73, α(K)=0.089 63, α(L)=0.0190 81, α(M)=0.0046 19, α(N)=0.00121 48, α(O)=2.7×10^-4 11, α(P)=4.2E-5 19, α(Q)=2.0E-6 14
506.5	(9/2+)		315.2 3	[M1+E2]		0.35	α=0.35 23, α(K)=0.26 20, α(L)=0.065 19, α(M)=0.016 4, α(N)=0.0042 10, α(O)=9.1×10^-4 25, α(P)=1.39E-4 47, α(Q)=5.9E-6 45
506.5	(9/2+)		506.6 5	[E1]		0.0111	α=0.0111, α(K)=0.00907 13, α(L)=0.001540 22, α(M)=0.000363 6, α(N)=9.46×10^-5 14, α(O)=2.09E-5 3, α(P)=3.26E-6 5, α(Q)=1.651E-7 24
530.0	(11/2+)		530.0 5	[E1]		0.01013	α=0.01013, α(K)=0.00829 12, α(L)=0.001401 20, α(M)=0.000330 5, α(N)=8.60×10^-5 13, α(O)=1.90E-5 3, α(P)=2.97E-6 5, α(Q)=1.513E-7 22
533.8	(7/2-)		518.8 4	[M1+E2]		0.091	α=0.091 57, α(K)=0.071 49, α(L)=0.0148 66, α(M)=0.0036 15, α(N)=9.4×10^-4 39, α(O)=2.09E-4 90, α(P)=3.3E-5 16, α(Q)=1.6E-6 11
589	(9/2-)		82.4	[E1]		0.179	α=0.179, α(L)=0.1359 19, α(M)=0.0328 5, α(N)=0.00844 12, α(O)=0.00179 3, α(P)=0.000250 4, α(Q)=8.57×10^-6 12
705.5	(5/2+)		171.7 3	[E1]		0.1273	α=0.1273, α(K)=0.1013 15, α(L)=0.0198 3, α(M)=0.00472 7, α(N)=0.001225 18, α(O)=0.000265 4, α(P)=3.93×10^-5 6, α(Q)=1.640E-6 24
705.5	(5/2+)		199.3 4	[E2]		0.560	α=0.560 9
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Mixing Ratio	Conversion Coefficient	Additional Data
778	(7/2+)		72.8	[M1+E2]		23	α=23 17, α(L)=17 12, α(M)=4.6 33, α(N)=1.20 86, α(O)=0.25 18, α(P)=0.033 22, α(Q)=3.9×10^-4 29

1948Gh01: ²¹⁹Fr identified in α decay chain: ²²⁷Pa|)²²³Ac|)²¹⁹Fr, where ²²⁷Pa was produced at the 184-inch Berkeley cyclotron. Short half-life for the decay of ²¹⁹Fr was deduced. Later studies at Berkeley by 1951Me10, 1963Su10 and 1964Hy02 measured a more definite half-life of ²¹⁹Fr decay

2014Bu06, 2015De28: measured hyperfine spectra, magnetic dipole moment, electric quadrupole moment and rms charge radius by Collinear Resonance Ionization Spectroscopy (CRIS) using HRS mass separator, ISCOOL gas-filled segmented linear Paul trap, and RILIS at ISOLDE-CERN facility. Both the measurements are for the ground state

Some aspects of the level scheme and band assignments as proposed by 1991Li19 (see also 1992Kv03, 2002Sh19) should be considered as tentative, as the Jπ values are mostly based on band assignments, and theoretical calculations, without a clear evidence of association of some of the levels to particular bands, especially for closely spaced levels.

Theoretical calculations: 27 primary references in the NSR database (www.nndc.bnl.gov/nsr), eight related to structure calculations, and 19 to radioactivity

Levels: Configuration and band assignments are from 1991Li19 (see also 2002Sh19)

Q-value: S(2n)=11840 9, S(2p)=10356 8 (2021Wa16)

Q(β-)=-777 keV 10	S(n)= 6514 keV 8	S(p)= 3889 keV 7	Q(α)= 7448.6 keV 18
Reference: 2021WA16

E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
0.0	A	9/2-	24 ms 4 % α = 100
15.0 1	A	(5/2-)		15.0S	100	[E2]	0.0	9/2-
56.1 1	A	(3/2-)		41.15 10	100	(M1+E2)	15.0	(5/2-)
73 1 ?	A	(13/2-)		72.8?	100	[E2]	0.0	9/2-
81.0 5	A	(1/2-)		66.0 5 ?	100	[E2]	15.0	(5/2-)
98.58 5	A	(7/2-)		42.4 1 83.55 10 98.58 5	1.4 3 64 4 100.0 22	(E2) (M1) (M1)	56.1 15.0 0.0	(3/2-) (5/2-) 9/2-
134.4 1	A	(5/2-)		35.7 1 78.25 10 119.4 1	25 4 50 6 100 9	(M1) [M1] (M1)	98.58 56.1 15.0	(7/2-) (3/2-) (5/2-)
139.8 1	A	(3/2-)		124.8 1	100	(M1)	15.0	(5/2-)
191.29 6	A	(7/2+)		56.95 20 92.71 5 176.3 2 191.3 1	6.4 10 66 3 19 3 100 7	[E1] [E1] [E1] [E1]	134.4 98.58 15.0 0.0	(5/2-) (7/2-) (5/2-) 9/2-
210.4 2	A	(3/2+)		195.4 2	100	(E1)	15.0	(5/2-)
216.0 1	A	(11/2+)		216.0 1	100	[E1]	0.0	9/2-
269.2 1	A	(7/2-)		134.6 3 254.4 3 269.2 1	≈10 70 20 100 20	[M1+E2] [M1+E2] [M1+E2]	134.4 15.0 0.0	(5/2-) (5/2-) 9/2-
305.5 1	A	(9/2-)		89.6 2 207.0 2 305.5 1	26 5 100 21 95 11	[E1] [M1+E2] [M1+E2]	216.0 98.58 0.0	(11/2+) (7/2-) 9/2-
325 2 ?	A
333.5 1	A	(11/2-)		64.4 3 333.5 1	≈18 100 36	[E2] [M1+E2]	269.2 0.0	(7/2-) 9/2-
340.3 1	A	(5/2+)		205.7 3 241.7 2 284.2 1 325.3 1	20 10 90 10 100 10 25 10	[E1] [E1] [E1] [E1]	134.4 98.58 56.1 15.0	(5/2-) (7/2-) (3/2-) (5/2-)
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
369.5 2	A	(3/2+)		229.7 2	100	[E1]	139.8	(3/2-)
372.4 1	A	(7/2+)		238.1 2 274.0 2 357.4 1 372.4 1	39 6 28 6 100 17 89 17	[E1] [E1] [E1] [E1]	134.4 98.58 15.0 0.0	(5/2-) (7/2-) (5/2-) 9/2-
374.8 2	A	(7/2)		374.8 2	100	[D,E2]	0.0	9/2-
384.3 1	A	(5/2+)		285.7 1	100	[E1]	98.58	(7/2-)
432.0 2	A	(9/2)		126.4 2 216.1 2	≈25 100 50	[D,E2] [D,E2]	305.5 216.0	(9/2-) (11/2+)
445 4 ?	A
462.2 5	A	(9/2+)		462.2 5	100	[E1]	0.0	9/2-
490.3 1	A	(5/2-)		279.8 3 299.1 2 434.2 1 475.2 1	5.7 19 5.7 19 100 9 51 8	[E1] [E1] [M1+E2] [M1+E2]	210.4 191.29 56.1 15.0	(3/2+) (7/2+) (3/2-) (5/2-)
506.5 3	A	(9/2+)		315.2 3 506.6 5	33 100 67	[M1+E2] [E1]	191.29 0.0	(7/2+) 9/2-
530.0 5	A	(11/2+)		530.0 5	100	[E1]	0.0	9/2-
533.8 4	A	(7/2-)		518.8 4	100	[M1+E2]	15.0	(5/2-)
589 1	A	(9/2-)		82.4?	100	[E1]	506.5	(9/2+)
650 3	A	(11/2-)
705.5 5	A	(5/2+)		171.7 3 199.3 4 ?	100 50 15E1 10	[E1] [E2]	533.8 506.5	(7/2-) (9/2+)
778 1	A	(7/2+)		72.8?	100	[M1+E2]	705.5	(5/2+)

E(level)	J^π(level)	T_1/2(level)	Comments
0.0	9/2-	24 ms 4 % α = 100	μ=+3.13 4 (2015De28,2014Bu06), Q=-1.21 2 (2015De28) isotope shift δν(²¹⁹Fr,²²¹Fr)=+5.59 GHz 10 (2014Bu06). E(level): Kπ=1/2-,π1/2[541], parity doublet band.
15.0	(5/2-)		E(level): Kπ=1/2-,π1/2[541], parity doublet band.
56.1	(3/2-)		E(level): Kπ=3/2-, parity doublet band.
73	(13/2-)		E(level): Kπ=1/2-,π1/2[541], parity doublet band.
81.0	(1/2-)		E(level): Kπ=1/2-,π1/2[541], parity doublet band.
98.58	(7/2-)		E(level): Kπ=3/2-, parity doublet band.
134.4	(5/2-)		E(level): Kπ=3/2-, parity doublet band.
139.8	(3/2-)		E(level): Kπ=1/2-,π1/2[541], parity doublet band.
191.29	(7/2+)		E(level): Kπ=1/2⁺, parity doublet band.
210.4	(3/2+)		E(level): Kπ=1/2⁺, parity doublet band.
216.0	(11/2+)		E(level): Kπ=1/2⁺, parity doublet band.
269.2	(7/2-)		E(level): Kπ=1/2-,π1/2[541], parity doublet band.
305.5	(9/2-)		E(level): Kπ=3/2-, parity doublet band.
325			E(level): Possible configuration=π5/2[523]+π5/2[512]+(π1/2[541]+Q₃₀). Weakly populated level by α branch, the gamma transition is either not confirmed or not observed.
333.5	(11/2-)		E(level): Kπ=1/2-,π1/2[541], parity doublet band.
340.3	(5/2+)		E(level): Kπ=3/2⁺, parity doublet band.
369.5	(3/2+)		E(level): Kπ=3/2⁺, parity doublet band.
372.4	(7/2+)		E(level): Kπ=3/2⁺, parity doublet band.
374.8	(7/2)		E(level): Possible configuration=π5/2[523]+π5/2[512]+(π1/2[541]+Q₃₀).
384.3	(5/2+)		E(level): Kπ=1/2⁺, parity doublet band.
432.0	(9/2)		E(level): Possible configuration=π5/2[523]+π5/2[512]+(π1/2[541]+Q₃₀).
445			E(level): Weakly populated level by α branch, the gamma transition is either not confirmed or not observed.
462.2	(9/2+)		E(level): Kπ=3/2⁺, parity doublet band.
490.3	(5/2-)		E(level): Kπ=5/2-, parity doublet band.
506.5	(9/2+)		E(level): Kπ=1/2⁺, parity doublet band.
E(level)	J^π(level)	T_1/2(level)	Comments
530.0	(11/2+)		E(level): Kπ=3/2⁺, parity doublet band.
533.8	(7/2-)		E(level): Kπ=5/2-, parity doublet band.
589	(9/2-)		E(level): Kπ=5/2-, parity doublet band.
650	(11/2-)		E(level): Kπ=5/2-, parity doublet band. Weakly populated level by α branch, the gamma transition is either not confirmed or not observed.
705.5	(5/2+)		E(level): Kπ=5/2⁺, parity doublet band.
778	(7/2+)		E(level): Kπ=5/2⁺, parity doublet band. Weakly populated level by α branch, the gamma transition is either not confirmed or not observed.