List of levels for 219RN

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

1931Cu01 evaluation mentions the following references for the half-life of ²¹⁹Rn: 1. min. Leslie, Phil. Mag. 24, 637 (1912), which reports half-life of 3.92 s from a large number of measurements; 2. p.B. Perkins, Phil. Mag. 27, 720 (1914), which reports a measured half-life of 3.92 s 4; 3. R. Schmid, Mitt. Ra. Inst. 103, Wien. Ber. IIa, 126, 1065 (1917). The 1912 and 1914 articles refer to following earlier measurements: 1. O. Hahn and O. Sackur, Ber. Dtsch. Chem. Ges. 38, 1943 (1905) with measured T_1/2=3.9 s; 2. α. Debierne, C.R. Acad. Sci. 136, 446 (1903) with T_1/2=3.9 s. Thus the investigation and identification of ²¹⁹Rn goes back to 1903. More precise half-lives were measured later by 1961Ro14 and 1966Hu20

²¹⁹Rn lies in a transitional region with spherical, quadrupole, and possibly octupole deformations. Its structure has been interpreted in terms of the g_9/2 and i_11/2 mixed parity shell model configurations, which give rise to even- and odd-parity states. Nuclear states in this mass region are not characterized by single Nilsson orbitals.

Theoretical calculations: 25 primary references in the NSR database (www.nndc.bnl.gov/nsr), three related to structure calculations, and 22 to radioactivity

All data for excited states are from ²²³Ra α decay dataset

Q-value: S(2n)=10972 5, S(2p)=11632 7 (2021Wa16)

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Mixing Ratio	Conversion Coefficient	Additional Data
4.413	(9/2)+	15.4 ns 13	4.413 12	(E2)		2.41×10⁶	B(E2)(W.u.)=116 11, α=2.41E6 5, α(M)=1.195E5 24, α(N)=1.87E6 4, α(O)=3.74E5 8, α(P)=4.01E4 8
14.400	(7/2)+	875 ps 30	9.987 16	M1+E2	0.048 4	9.2×10²	B(E2)(W.u.)=1.3×10² 3, B(M1)(W.u.)=0.017 3, α=9.2E2 7, α(M)=7.0E2 5, α(N)=182 13, α(O)=38 3, α(P)=5.0 3
14.400	(7/2)+	875 ps 30	14.400 10	M1+E2	0.112 4	511	B(E2)(W.u.)=127 21, B(M1)(W.u.)=0.0064 10, α=511 25, α(M)=387 19, α(N)=100 5, α(O)=20.8 10, α(P)=2.54 11
126.726	(11/2)+	402 ps 20	122.319 10	M1+E2	0.132 14	7.34	B(E2)(W.u.)=1.3 3, B(M1)(W.u.)=0.00353 19, α=7.34, α(K)=5.88 9, α(L)=1.109 17, α(M)=0.265 4, α(N)=0.0690 11, α(O)=0.01505 23, α(P)=0.00218 4
158.631	(7/2)+	42.3 ps 50	31.98 3	(E2)		1.98×10³	B(E2)(W.u.)=10.6 +28-25, α=1.98E3, α(L)=1465 22, α(M)=391 6, α(N)=101.4 15, α(O)=20.3 3, α(P)=2.21 4
	(7/2)+	42.3 ps 50	144.235 10	M1+E2	-0.121 17	4.59	B(E2)(W.u.)=2.6 8, B(M1)(W.u.)=0.0115 14, α=4.59, α(K)=3.69 6, α(L)=0.684 10, α(M)=0.1630 24, α(N)=0.0425 7, α(O)=0.00928 14, α(P)=0.001347 19
	(7/2)+	42.3 ps 50	154.208 10	M1		3.83	B(M1)(W.u.)=0.0165 20, α=3.83, α(K)=3.09 5, α(L)=0.560 8, α(M)=0.1331 19, α(N)=0.0347 5, α(O)=0.00759 11, α(P)=0.001108 16
	(7/2)+	42.3 ps 50	158.635 10	M1+E2	-0.20 3	3.45	B(E2)(W.u.)=0.9 3, B(M1)(W.u.)=0.00179 22, α=3.45 6, α(K)=2.76 5, α(L)=0.525 8, α(M)=0.1255 20, α(N)=0.0327 5, α(O)=0.00713 11, α(P)=0.001028 15
269.475	3/2+	14.2 ps 23	110.856 10	E2		5.36	B(E2)(W.u.)=65 11, α=5.36, α(K)=0.363 5, α(L)=3.69 6, α(M)=0.994 14, α(N)=0.259 4, α(O)=0.0522 8, α(P)=0.00581 9
	3/2+	14.2 ps 23	255.2 2	[E2]		0.229	B(E2)(W.u.)=0.96 16, α=0.229, α(K)=0.0979 14, α(L)=0.0968 14, α(M)=0.0256 4, α(N)=0.00667 10, α(O)=0.001366 20, α(P)=0.0001609 23
	3/2+	14.2 ps 23	269.463 10	M1+E2	-0.149 10	0.789	B(E2)(W.u.)=4.3 9, B(M1)(W.u.)=0.043 7, α=0.789 12, α(K)=0.637 9, α(L)=0.1157 17, α(M)=0.0275 4, α(N)=0.00716 10, α(O)=0.001566 22, α(P)=0.000228 4
338.276	(5/2)+	6.1 ps 28	179.54 6	M1+E2	0.53 8	2.12	B(E2)(W.u.)=23 12, B(M1)(W.u.)=0.008 4, α=2.12 10, α(K)=1.62 10, α(L)=0.376 6, α(M)=0.0922 19, α(N)=0.0240 5, α(O)=0.00516 9, α(P)=0.000711 11
	(5/2)+	6.1 ps 28	323.871 10	M1(+E2)	-0.04 5	0.484	B(M1)(W.u.)=0.040 19, α=0.484 8, α(K)=0.392 6, α(L)=0.0700 10, α(M)=0.01661 24, α(N)=0.00433 7, α(O)=0.000947 14, α(P)=0.0001383 20
	(5/2)+	6.1 ps 28	334.01 6	(E2)		0.1007	B(E2)(W.u.)=2.2 11, α=0.1007, α(K)=0.0546 8, α(L)=0.0343 5, α(M)=0.00895 13, α(N)=0.00233 4, α(O)=0.000481 7, α(P)=5.85E-5 9
	(5/2)+	6.1 ps 28	338.282 10	M1+E2	-0.23 5	0.413	B(E2)(W.u.)=3.6 23, B(M1)(W.u.)=0.024 11, α=0.413 10, α(K)=0.333 9, α(L)=0.0607 11, α(M)=0.01444 25, α(N)=0.00376 7, α(O)=0.000822 15, α(P)=0.0001195 23
342.792	(5/2,7/2)-		328.38 3	E1		0.0271	α=0.0271
342.792	(5/2,7/2)-		342.87 4	(E1)		0.0246	α=0.0246
376.19	(9/2)+	6.9 ps 38	249.3 1	(M1+E2)		0.62	α=0.62 38, α(K)=0.45 36, α(L)=0.125 20, α(M)=0.031 4, α(N)=0.0081 9, α(O)=0.00173 23, α(P)=0.00023 6
	(9/2)+	6.9 ps 38	362.052 17	[M1+E2]		0.22	α=0.22 14, α(K)=0.17 13, α(L)=0.039 13, α(M)=0.0094 28, α(N)=0.00246 74, α(O)=5.3×10^-4 17, α(P)=7.3E-5 29
	(9/2)+	6.9 ps 38	371.676 15	M1(+E2)	0.15 LT	0.330	B(M1)(W.u.)=0.018 10, α=0.330 6, α(K)=0.267 5, α(L)=0.0478 8, α(M)=0.01134 17, α(N)=0.00295 5, α(O)=0.000646 10, α(P)=9.43×10^-5 15
	(9/2)+	6.9 ps 38	376.1 2	[E2]		0.0724	B(E2)(W.u.)=1.0 6, α=0.0724
377.33	(7/2,9/2)-		34.5 2	[M1+E2]		7.1×10²	α=7.1×10² 66, α(L)=5.3×10⁺² 49, α(M)=1.4E+2 13, α(N)=36 34, α(O)=7.3 68, α(P)=0.81 72
377.33	(7/2,9/2)-		372.9 1	(E1)		0.0205	α=0.0205
445.037	(5/2)+	6.2 ps 31	102.2 2	[E1]		0.439	B(E1)(W.u.)=1.3E-5 9, α=0.439, α(K)=0.341 5, α(L)=0.0744 12, α(M)=0.0178 3, α(N)=0.00457 7, α(O)=0.000952 15, α(P)=0.0001216 18
	(5/2)+	6.2 ps 31	106.78 3	M1(+E2)	0.5 LT	10.4	B(E2)(W.u.)<400, B(M1)(W.u.)=0.030 +38-11, α=10.4 5, α(K)=7.9 9, α(L)=1.9 3, α(M)=0.46 8, α(N)=0.120 21, α(O)=0.026 4, α(P)=0.0036 4
	(5/2)+	6.2 ps 31	175.6 2	[M1+E2]		1.75	α=1.75 91, α(K)=1.18 97, α(L)=0.43 4, α(M)=0.108 17, α(N)=0.028 5, α(O)=0.0059 7, α(P)=0.000758 14
	(5/2)+	6.2 ps 31	430.6 3	[M1+E2]		0.137	α=0.137 87, α(K)=0.107 75, α(L)=0.0231 91, α(M)=0.0056 21, α(N)=0.00146 53, α(O)=3.2×10^-4 12, α(P)=4.4E-5 20
	(5/2)+	6.2 ps 31	445.033 12	M1		0.205	B(M1)(W.u.)=0.027 14, α=0.205, α(K)=0.1661 24, α(L)=0.0295 5, α(M)=0.00698 10, α(N)=0.00182 3, α(O)=0.000398 6, α(P)=5.82×10^-5 9
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Mixing Ratio	Conversion Coefficient	Additional Data
446.82	(5/2)-		69.5 1	(M1)		7.36	α=7.36, α(L)=5.60 9, α(M)=1.330 20, α(N)=0.347 5, α(O)=0.0759 11, α(P)=0.01108 17
	(5/2)-		104.23 8	(M1+E2)		9.3	α=9.3 24, α(K)=4.9 46, α(L)=3.3 16, α(M)=0.87 46, α(N)=0.23 12, α(O)=0.046 23, α(P)=0.0056 22
	(5/2)-		108.5 2	[E1]		0.382	α=0.382, α(K)=0.298 5, α(L)=0.0635 10, α(M)=0.01519 23, α(N)=0.00390 6, α(O)=0.000814 12, α(P)=0.0001045 16
	(5/2)-		177.3 1	[E1]		0.1152	α=0.1152, α(K)=0.0921 13, α(L)=0.01761 25, α(M)=0.00419 6, α(N)=0.001080 16, α(O)=0.000229 4, α(P)=3.05×10^-5 5
	(5/2)-		288.18 3	E1		0.0364	α=0.0364
490.88	(5/2,7/2,9/2)-		114.7 2	[E1]		0.334	α=0.334, α(K)=0.262 4, α(L)=0.0548 8, α(M)=0.01310 20, α(N)=0.00336 5, α(O)=0.000704 11, α(P)=9.08×10^-5 14
594.08	(7/2)-		103.2 2	(M1+E2)		9.6	α=9.6 24, α(K)=5.0 47, α(L)=3.5 17, α(M)=0.90 49, α(N)=0.24 13, α(O)=0.048 25, α(P)=0.0058 23
	(7/2)-		147.2 3	[M1+E2]		3.0	α=3.0 14, α(K)=1.9 17, α(L)=0.83 19, α(M)=0.212 61, α(N)=0.055 16, α(O)=0.012 3, α(P)=0.00144 18
	(7/2)-		251.6 3	(M1+E2)		0.60	α=0.60 37, α(K)=0.44 35, α(L)=0.122 20, α(M)=0.030 4, α(N)=0.0079 9, α(O)=0.00168 24, α(P)=0.00022 6
598.721	(5/2,7/2,9/2)+		221.32 24	(E1)		0.0675	α=0.0675, α(K)=0.0543 8, α(L)=0.01005 15, α(M)=0.00239 4, α(N)=0.000616 9, α(O)=0.0001311 19, α(P)=1.78×10^-5 3
598.721	(5/2,7/2,9/2)+		260.4 3	[M1+E2]		0.55	α=0.55 34, α(K)=0.40 31, α(L)=0.109 20, α(M)=0.027 4, α(N)=0.0070 9, α(O)=0.00150 24, α(P)=2.01×10^-4 53

Q(β-)=212 keV 7	S(n)= 4459 keV 3	S(p)= 6560 keV 12	Q(α)= 6946.2 keV 3
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 B	5/2+	3.96 s 1 % α = 100
4.413 12	B	(9/2)+	15.4 ns 13	4.413 12		(E2)	0.0	5/2+
14.400 10	B	(7/2)+	875 ps 30	9.987 16 14.400 10	85 9 100 9	M1+E2 M1+E2	4.413 0.0	(9/2)+ 5/2+
126.726 15	B	(11/2)+	402 ps 20	122.319 10	100	M1+E2	4.413	(9/2)+
158.631 8	B	(7/2)+	42.3 ps 50	31.98 3 144.235 10 154.208 10 158.635 10	0.0018 4 57.7 3 100.0 12.26 6	(E2) M1+E2 M1 M1+E2	126.726 14.400 4.413 0.0	(11/2)+ (7/2)+ (9/2)+ 5/2+
269.475 8	B	3/2+	14.2 ps 23	110.856 10 255.2 2 269.463 10	0.393 10 0.376 10 100.0 5	E2 [E2] M1+E2	158.631 14.400 0.0	(7/2)+ (7/2)+ 5/2+
338.276 8	B	(5/2)+	6.1 ps 28	179.54 6 323.871 10 334.01 6 338.282 10	4.42 3 100.0 5 2.074 15 71.4 4	M1+E2 M1(+E2) (E2) M1+E2	158.631 14.400 4.413 0.0	(7/2)+ (7/2)+ (9/2)+ 5/2+
342.792 24	B	(5/2,7/2)-		328.38 3 342.87 4	100.0 5 92 5	E1 (E1)	14.400 0.0	(7/2)+ 5/2+
376.19 6	B	(9/2)+	6.9 ps 38	249.3 1 362.052 17 371.676 15 376.1 2	8.62 20 6.08 5 100.0 7 1.27 6	(M1+E2) [M1+E2] M1(+E2) [E2]	126.726 14.400 4.413 0.0	(11/2)+ (7/2)+ (9/2)+ 5/2+
377.33 6	B	(7/2,9/2)-		34.5 2 362.9 2 372.9 1	22.4 11 100 22	[M1+E2] (E1)	342.792 14.400 4.413	(5/2,7/2)- (7/2)+ (9/2)+
397.0 4	B			270.3 4	100		126.726	(11/2)+
445.037 12	B	(5/2)+	6.2 ps 31	102.2 2 106.78 3 175.6 2 430.6 3 445.033 12	0.07 3 1.88 9 1.30 1 1.92 4 100.0 5	[E1] M1(+E2) [M1+E2] [M1+E2] M1	342.792 338.276 269.475 14.400 0.0	(5/2,7/2)- (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
446.82 3	B	(5/2)-		69.5 1 104.23 8 108.5 2 177.3 1 288.18 3 432.12 10	4.8 20 11.2 28 4.0 20 28.4 7 100.0 16 20.8 9	(M1) (M1+E2) [E1] [E1] E1	377.33 342.792 338.276 269.475 158.631 14.400	(7/2,9/2)- (5/2,7/2)- (5/2)+ 3/2+ (7/2)+ (7/2)+
490.88 16	B	(5/2,7/2,9/2)-		114.7 2	100	[E1]	376.19	(9/2)+
514.42 11	B	(9/2+)		138.3 3 355.7 2 387.7 2 500.0 4 510.0 4	49 20 54 27 100 20 24 9 8 5		376.19 158.631 126.726 14.400 4.413	(9/2)+ (7/2)+ (11/2)+ (7/2)+ (9/2)+
517.7?	B			70.9?	100		446.82	(5/2)-
542.011 16	B	(7/2+)		165.8 2 382.8 5 527.611 13 537.6 1 542.0 4	6.3 22 3.7 14 100.0 12 4.5 7 2.6 6		376.19 158.631 14.400 4.413 0.0	(9/2)+ (7/2)+ (7/2)+ (9/2)+ 5/2+
594.08 13	B	(7/2)-		103.2 2 147.2 3 251.6 3 255.7 3 579.6 3 594.0 3	19 6 9 5 100.0 19 9 5 2.3 10 2.3 10	(M1+E2) [M1+E2] (M1+E2)	490.88 446.82 342.792 338.276 14.400 0.0	(5/2,7/2,9/2)- (5/2)- (5/2,7/2)- (5/2)+ (7/2)+ 5/2+
598.721 24	B	(5/2,7/2,9/2)+		221.32 24 260.4 3 584.3 3 598.721 24	34.4 11 7.6 35 1.7 7 100.0 16	(E1) [M1+E2]	377.33 338.276 14.400 0.0	(7/2,9/2)- (5/2)+ (7/2)+ 5/2+
623.70 4	B	(5/2+,7/2,9/2+)		246.2 5 609.31 4 619.1 4 623.5 3	17 5 100 10 8.5 11 13.5 14		377.33 14.400 4.413 0.0	(7/2,9/2)- (7/2)+ (9/2)+ 5/2+
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
646.09 13	B	(5/2+,7/2)		131.6 2 199.3 3 487.5 2 631.7 7 ? 641.7 4 646.1 5	83 46 44 22 100 10 64 46 27 11 64 64		514.42 446.82 158.631 14.400 4.413 0.0	(9/2+) (5/2)- (7/2)+ (7/2)+ (9/2)+ 5/2+
672.5 5	B			545.8 5	100		126.726	(11/2)+
711.34 11	B	(3/2:9/2+)		112.6? 368.56 12 696.9 7 711.3 2	100 3 5.4 23 25.1 23		598.721 342.792 14.400 0.0	(5/2,7/2,9/2)+ (5/2,7/2)- (7/2)+ 5/2+
732.84 13	B	(5/2+,7/2)		286.0 4 355.5 2 390.1 2 574.1 7 718.4 4 728.4 8 732.8 6	23 11 84 28 100 11 39 16 28 11 48 13 11 6		446.82 377.33 342.792 158.631 14.400 4.413 0.0	(5/2)- (7/2,9/2)- (5/2,7/2)- (7/2)+ (7/2)+ (9/2)+ 5/2+
≈748	B
≈773	B
≈800	B
≈830	B
≈851	B
≈861	B
≈873	B

References:
A	²¹⁹At β^- decay (56 S)	B	²²³Ra α decay (11.4366 d)

E(level)	J^π(level)	T_1/2(level)	Comments
0.0	5/2+	3.96 s 1 % α = 100	μ=-0.442 5 (1988NeZZ,2014StZZ), Q=+1.15 12 (1987OtZW,2016St14) Evaluated δ<r²>(²¹⁹Rn,²¹²Rn)=0.8212 fm² 3 (2013An02), the same as measured by 1987OtZW. E(level): Member of νg_9/2 structure.
4.413	(9/2)+	15.4 ns 13	E(level): Member of νg_9/2 structure.
14.400	(7/2)+	875 ps 30	E(level): Member of νg_9/2 structure.
126.726	(11/2)+	402 ps 20	E(level): Member of νi_11/2 structure.
158.631	(7/2)+	42.3 ps 50	E(level): Member of νi_11/2 structure.
269.475	3/2+	14.2 ps 23	E(level): Member of νi_11/2 structure.
338.276	(5/2)+	6.1 ps 28	E(level): Member of νi_11/2 structure.
376.19	(9/2)+	6.9 ps 38	E(level): Member of νi_11/2 structure.
377.33	(7/2,9/2)-		No evidence was found of a previously reported level at 378.5 keV (1992Br10) deexcited by a 251.6-keV γ ray (1998Sh02). E(level): No evidence was found of a previously reported level at 378.5 keV (1992Br10) deexcited by a 251.6-keV γ ray (1998Sh02).
445.037	(5/2)+	6.2 ps 31	E(level): Member of νi_11/2 structure.
514.42	(9/2+)		E(level): Member of νi_11/2 structure.
542.011	(7/2+)		E(level): Member of νi_11/2 structure.
598.721	(5/2,7/2,9/2)+		E(level): Member of νi_11/2 structure.