ADOPTED LEVELS, GAMMAS for 229Ra
Authors: E. Browne, J. K. Tuli | Citation: Nucl. Data Sheets 109, 2657 (2008) | Cutoff date: 1-Jun-2008
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=1850 keV 18 | S(n)= 4465 keV 15 | S(p)= 8110 keV 20 | Q(α)= 3589 keV 19 | ||
Reference: 2012WA38 |
References: | |||
A | 229Fr β- decay |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | A | 5/2+ | 4.0 m 2 % α = 100 | |||||
41.25 9 | A | (7/2)+ | 41.3 | 100 | M1(+E2) | 0.0 | 5/2+ | |
107.04 6 | A | (5/2)+ | 65.8 1 107.1 1 | 100 7 57 4 | M1 M1 | 41.25 0.0 | (7/2)+ 5/2+ | |
137.45 6 | A | 5/2- | 0.66 ns 4 | 96.2 1 137.5 1 | 100 100 | E1 E1 | 41.25 0.0 | (7/2)+ 5/2+ |
142.67 6 | A | 1/2+ | 17.23 ns 12 | 35.6 142.7 1 | 100 | (E2) E2 | 107.04 0.0 | (5/2)+ 5/2+ |
168.74 6 | A | 3/2+ | 106 ps 18 | 26.1 61.8 1 168.8 1 | 29 2 100 4 | M1 M1 | 142.67 107.04 0.0 | 1/2+ (5/2)+ 5/2+ |
212.91 6 | A | 3/2+ | 18 ps 14 | 44.3 2 70.3 2 75.1 1 ? 105.9 1 212.9 1 | 6.9 8 4.4 7 5.2 20 14.0 12 100 7 | M1+E2 M1(+E2) | 168.74 142.67 137.45 107.04 0.0 | 3/2+ 1/2+ 5/2- (5/2)+ 5/2+ |
478.86 7 | A | 1/2- | ≤ 30 ps | 266.0 1 310.1 1 336.2 1 341.4 1 | 18.5 6 13.9 6 100 1.96 9 | E1 E1 E1 (E2) | 212.91 168.74 142.67 137.45 | 3/2+ 3/2+ 1/2+ 5/2- |
501.37 7 | A | (5/2+) | 332.5 1 358.7 1 363.9 1 | 15.3 20 100 4 4.5 4 | (E2) | 168.74 142.67 137.45 | 3/2+ 1/2+ 5/2- | |
518.18 9 | A | (3/2)- | 305.3 3 349.5 1 375.5 2 380.6 4 | 13.9 12 100 4 49.7 16 1.9 5 | E1 | 212.91 168.74 142.67 137.45 | 3/2+ 3/2+ 1/2+ 5/2- | |
541.46 8 | A | 5/2- | 372.8 2 398.7 1 404.1 1 | 23 3 100 8 49 5 | (M1) | 168.74 142.67 137.45 | 3/2+ 1/2+ 5/2- | |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
550.85 9 | A | 3/2-,5/2-,7/2- | 413.6 2 550.8 1 | 65 12 100 10 | M1(+E2) | 137.45 0.0 | 5/2- 5/2+ | |
563.07 9 | A | 394.8 2 562.9 1 | 70 11 100 7 | 168.74 0.0 | 3/2+ 5/2+ | |||
565.64 8 | A | 3/2- | 352.7 1 428.1 1 | 22 1 100 6 | M1(+E2) | 212.91 137.45 | 3/2+ 5/2- | |
598.26 10 | A | 455.6 1 598.2 2 | 85 6 100 10 | 142.67 0.0 | 1/2+ 5/2+ | |||
665.07 11 | A | 522.4 1 665.1 3 | 82 6 100 13 | 142.67 0.0 | 1/2+ 5/2+ | |||
752.91 9 | A | (1/2,3/2)- | 211.5 1 274.1 1 615.1 2 645.4 2 ? | 25 4 39 3 100 10 94 8 | M1(+E2) | 541.46 478.86 137.45 107.04 | 5/2- 1/2- 5/2- (5/2)+ | |
773.2 3 | A | 560.3 3 | 100 | 212.91 | 3/2+ | |||
813.88 14 | A | 149.4 2 ? 601.0 2 671.2 2 | 31 2 17 4 100 10 | 665.07 212.91 142.67 | 3/2+ 1/2+ | |||
835.90 19 | A | 334.3 5 667.7 4 693.2 3 | 1.0E+2 3 93 16 100 13 | 501.37 168.74 142.67 | (5/2+) 3/2+ 1/2+ | |||
870.88 11 | A | 727.9 2 763.6 2 871.0 2 | 60 6 41 6 100 9 | 142.67 107.04 0.0 | 1/2+ (5/2)+ 5/2+ | |||
934.62 18 | A | 792.1 3 827.5 2 | 94 24 100 10 | 142.67 107.04 | 1/2+ (5/2)+ | |||
1042.0 3 | A | 899.4 3 1041.7 6 | 100 17 18 9 | 142.67 0.0 | 1/2+ 5/2+ | |||
1322.64 22 | A | 757.0 2 | 100 | 565.64 | 3/2- | |||
1340.01 14 | A | 587.1 1 | 100 | 752.91 | (1/2,3/2)- | |||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
1376.12 20 | A | 441.5 1 | 100 | 934.62 | ||||
1410.09 11 | A | 844.3 2 908.6 2 1197.3 2 1267.5 4 1410.3 3 | 30 4 100 11 76 8 1.0E+2 3 9 2 | 565.64 501.37 212.91 142.67 0.0 | 3/2- (5/2+) 3/2+ 1/2+ 5/2+ | |||
1424.87 7 | A | 611.1 4 858.9 2 861.6 2 883.3 2 923.1 2 1256.2 1 1282.3 1 1288.0 3 | 13 3 8.3 13 11.0 13 16 2 8.1 10 100 10 36 4 3.8 6 | 813.88 565.64 563.07 541.46 501.37 168.74 142.67 137.45 | 3/2- 5/2- (5/2+) 3/2+ 1/2+ 5/2- | |||
1437.02 14 | A | 919.1 2 1267.9 2 1300.1 4 1395.7 3 | 23 5 100 20 7.8 17 8.8 17 | 518.18 168.74 137.45 41.25 | (3/2)- 3/2+ 5/2- (7/2)+ | |||
1461.30 11 | A | 525.6 1 ? 590.0 2 625.6 3 943.1 2 1248.4 2 1292.8 2 1324.0 3 | 26.0 17 34 3 18.7 21 17.3 17 10 1 100 10 6.9 17 | 934.62 870.88 835.90 518.18 212.91 168.74 137.45 | (3/2)- 3/2+ 3/2+ 5/2- | |||
1608.76 15 | A | 1440.0 2 1466.1 2 | 100 10 72 7 | 168.74 142.67 | 3/2+ 1/2+ | |||
1696.84 18 | A | 1178.6 2 1554.3 3 | 100 10 61 8 | 518.18 142.67 | (3/2)- 1/2+ | |||
1720.54 19 | A | 310.3 4 1577.9 2 | 1.0E+2 4 21 6 | 1410.09 142.67 | 1/2+ |
E(level): Deduced by evaluators from least-squares fit to adopted γ-ray energies.
Jπ(level): Spin and parity assignments are based on γ-ray multipolarities and on rotational structure. Arguments for spin/parity assignments are given with some individual levels. Because of the high octupole components in the wave functions of low-energy states, rotational levels are seen with partners of the same K angular momentum projection and opposite parities ( "parity doublets. ") This interpretation has been confirmed by the enhanced E1 γ-ray transition probabilities between parity pair states.
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 1 - Kπ=1/2- PARITY DOUBLET band. 1/2[501] | |||||||
478.86 7 | 1/2- | ≤ 30 ps | |||||
518.18 9 | (3/2)- | 305.3 3 349.5 1 375.5 2 380.6 4 | 13.9 12 100 4 49.7 16 1.9 5 | E1 | 212.91 168.74 142.67 137.45 | 3/2+ 3/2+ 1/2+ 5/2- | |
541.46 8 | 5/2- | 372.8 2 398.7 1 404.1 1 | 23 3 100 8 49 5 | (M1) | 168.74 142.67 137.45 | 3/2+ 1/2+ 5/2- | |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 2 - Kπ=3/2+ PARITY DOUBLET band. 3/2[631] | |||||||
212.91 6 | 3/2+ | 18 ps 14 | |||||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 3 - Kπ=5/2+ PARITY DOUBLET band. 5/2[633] | |||||||
0.0 | 5/2+ | 4.0 m 2 % α = 100 | |||||
41.25 9 | (7/2)+ | 41.3 | 100 | M1(+E2) | 0.0 | 5/2+ |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Mixing Ratio | Conversion Coefficient | Additional Data |
107.04 | (5/2)+ | 65.8 1 | M1 | 10.51 | α=10.51, α(L)=7.96 12, α(M)=1.91 3, α(N)=0.503 8, α(O)=0.1147 17, α(P)=0.0200 3, α(Q)=0.001572 23, α(N+)=0.639 10 | ||
(5/2)+ | 107.1 1 | M1 | 12.77 | α=12.77, α(K)=10.22 15, α(L)=1.93 3, α(M)=0.462 7, α(N)=0.1219 18, α(O)=0.0278 4, α(P)=0.00485 7, α(Q)=0.000381 6, α(N+)=0.1550 23 | |||
137.45 | 5/2- | 0.66 ns 4 | 96.2 1 | E1 | 0.1223 | B(E1)(W.u.)=0.000131 8, α=0.1223, α(L)=0.0927 14, α(M)=0.0224 4, α(N)=0.00581 9, α(O)=0.001264 18, α(P)=0.000197 3, α(Q)=9.69E-6 14, α(N+)=0.00728 11 | |
5/2- | 0.66 ns 4 | 137.5 1 | E1 | 0.222 | B(E1)(W.u.)=4.5E-5 3, α=0.222, α(K)=0.1746 25, α(L)=0.0363 6, α(M)=0.00871 13, α(N)=0.00227 4, α(O)=0.000499 7, α(P)=7.99E-5 12, α(Q)=4.35E-6 7, α(N+)=0.00285 4 | ||
142.67 | 1/2+ | 17.23 ns 12 | 142.7 1 | E2 | 2.14 | B(E2)(W.u.)=2.12 4, α=2.14, α(K)=0.279 4, α(L)=1.369 20, α(M)=0.372 6, α(N)=0.0982 14, α(O)=0.0209 3, α(P)=0.00306 5, α(Q)=1.83E-5 3, α(N+)=0.1223 18 | |
168.74 | 3/2+ | 106 ps 18 | 61.8 1 | M1 | 12.62 | B(M1)(W.u.)=0.030 6, α=12.62, α(L)=9.57 15, α(M)=2.29 4, α(N)=0.604 9, α(O)=0.1378 21, α(P)=0.0240 4, α(Q)=0.00189 3, α(N+)=0.768 12 | |
3/2+ | 106 ps 18 | 168.8 1 | M1 | 3.53 | B(M1)(W.u.)=0.0051 10, α=3.53, α(K)=2.83 4, α(L)=0.525 8, α(M)=0.1255 18, α(N)=0.0331 5, α(O)=0.00755 11, α(P)=0.001317 19, α(Q)=0.0001032 15, α(N+)=0.0421 6 | ||
212.91 | 3/2+ | 18 ps 14 | 44.3 2 | M1+E2 | 0.95 33 | 2.4×102 | B(E2)(W.u.)=4.×103 4, B(M1)(W.u.)=0.03 3, α=2.4E2 9, α(L)=1.8E2 7, α(M)=48 18, α(N)=13 5, α(O)=2.7 10, α(P)=0.39 14, α(Q)=0.0034 7, α(N+)=16 6 |
3/2+ | 18 ps 14 | 212.9 1 | M1(+E2) | 1.2 | α=1.2 7, α(K)=0.8 7, α(L)=0.256 18, α(M)=0.0648 10, α(N)=0.0171 3, α(O)=0.00378 15, α(P)=0.00061 7, α(Q)=3.0×10-5 24, α(N+)=0.0215 5 | ||
478.86 | 1/2- | ≤ 30 ps | 266.0 1 | E1 | 0.0462 | α=0.0462, α(K)=0.0372 6, α(L)=0.00690 10, α(M)=0.001645 23, α(N)=0.000430 6, α(O)=9.60×10-5 14, α(P)=1.593E-5 23, α(Q)=1.008E-6 15, α(N+)=0.000543 8 | |
1/2- | ≤ 30 ps | 310.1 1 | E1 | 0.0327 | α=0.0327, α(K)=0.0263 4, α(L)=0.00479 7, α(M)=0.001141 16, α(N)=0.000299 5, α(O)=6.68×10-5 10, α(P)=1.116E-5 16, α(Q)=7.27E-7 11, α(N+)=0.000377 6 | ||
1/2- | ≤ 30 ps | 336.2 1 | E1 | 0.0273 | α=0.0273, α(K)=0.0221 3, α(L)=0.00397 6, α(M)=0.000945 14, α(N)=0.000247 4, α(O)=5.54×10-5 8, α(P)=9.29E-6 13, α(Q)=6.14E-7 9, α(N+)=0.000313 5 | ||
1/2- | ≤ 30 ps | 341.4 1 | (E2) | 0.1041 | α=0.1041, α(K)=0.0542 8, α(L)=0.0369 6, α(M)=0.00973 14, α(N)=0.00257 4, α(O)=0.000558 8, α(P)=8.58×10-5 12, α(Q)=2.10E-6 3, α(N+)=0.00322 5 | ||
541.46 | 5/2- | 404.1 1 | (M1) | 0.315 | α=0.315, α(K)=0.254 4, α(L)=0.0462 7, α(M)=0.01103 16, α(N)=0.00291 4, α(O)=0.000663 10, α(P)=0.0001157 17, α(Q)=9.07×10-6 13, α(N+)=0.00369 6 | ||
550.85 | 3/2-,5/2-,7/2- | 413.6 2 | M1(+E2) | 0.2 9 | 0.29 | α=0.29 12, α(K)=0.23 11, α(L)=0.042 13, α(M)=0.010 3, α(N)=0.0027 8, α(O)=0.00061 18, α(P)=0.00011 4, α(Q)=8.E-6 4, α(N+)=0.0034 10 | |
565.64 | 3/2- | 428.1 1 | M1(+E2) | 0.41 35 | 0.24 | α=0.24 5, α(K)=0.19 4, α(L)=0.036 6, α(M)=0.0087 12, α(N)=0.0023 3, α(O)=0.00052 7, α(P)=9.0×10-5 14, α(Q)=6.8E-6 15, α(N+)=0.0029 4 | |
752.91 | (1/2,3/2)- | 274.1 1 | M1(+E2) | 0.3 5 | 0.85 | α=0.85 22, α(K)=0.68 20, α(L)=0.130 16, α(M)=0.031 3, α(N)=0.0083 8, α(O)=0.00188 20, α(P)=0.00033 5, α(Q)=2.5×10-5 7, α(N+)=0.0105 11 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0.0 | 5/2+ | 4.0 m 2 % α = 100 | Q=2.96 30 (1988Ah02), μ=0.5025 27 Other value: Q=+3.1 2 (1989Ne03). Other: 1988Ne09. E(level): Other value: Q=+3.1 2 (1989Ne03). Other: 1988Ne09. Kπ=5/2+ PARITY DOUBLET band. 5/2[633]. |
41.25 | (7/2)+ | E(level): Kπ=5/2+ PARITY DOUBLET band. 5/2[633]. | |
212.91 | 3/2+ | 18 ps 14 | E(level): Kπ=3/2+ PARITY DOUBLET band. 3/2[631]. |
478.86 | 1/2- | ≤ 30 ps | E(level): Kπ=1/2- PARITY DOUBLET band. 1/2[501]. |
518.18 | (3/2)- | E(level): Kπ=1/2- PARITY DOUBLET band. 1/2[501]. | |
541.46 | 5/2- | E(level): Kπ=1/2- PARITY DOUBLET band. 1/2[501]. |
E(level) | E(gamma) | Comments |
107.04 | 65.8 | M(γ): From α(L1)exp + α(L2)exp=6.6 9, α(L3)exp|<0.26, α(M)exp=2.05 14. | 107.1 | M(γ): From α(L1)exp + α(L2)exp=1.53 22, α(L3)exp|<0.25, α(M)exp=0.77 11, α(n)exp=0.28 9. |
137.45 | 96.2 | M(γ): From α(L1)exp + α(L2)exp|<0.31. | 137.5 | M(γ): From α(K)exp|<0.94, α(L1)exp + α(L2)exp=0.017 7, α(L3)exp|<0.041. |
142.67 | 142.7 | M(γ): From α(K)exp|<0.48, α(L1)exp + α(L2)exp=0.72 9, α(L3)exp=0.35 4, α(M)exp=0.26 3, α(n)exp=0.080 10. |
168.74 | 61.8 | M(γ): From α(L1)exp + α(L2)exp=5.2 8, α(M)exp=3.2 5. | 168.8 | M(γ): From α(K)exp=3.1 4, α(L1)exp + α(L2)exp=0.32 5, α(L3)exp=0.015 8, α(M)exp=0.07 4 |
212.91 | 44.3 | M(γ): From α(L1)exp+α(L2)exp=100 30. δ deduced by evaluators. | 212.9 | M(γ): From α(K)exp=1.05 14, α(L1)exp + α(L2)exp=0.27 4, α(M)exp=0.10 3. |
478.86 | 266.0 | M(γ): From α(K)exp=0.046 10 | 310.1 | M(γ): From α(K)exp=0.020 3, α(L1)exp + α(L2)exp=0.0058 13 | 336.2 | M(γ): From α(K)exp=0.0172 22, α(L1)exp + α(L2)exp=0.0039 16 | 341.4 | M(γ): From α(K)exp=0.10 7 |
550.85 | 413.6 | M(γ): From α(K)exp=0.23 7. δ deduced by evaluators. |
565.64 | 428.1 | M(γ): From α(K)exp=0.19 4. δ deduced by evaluators. |
752.91 | 274.1 | M(γ): From α(K)exp=0.66 15. δ deduced by evaluators. |
Atomic masses: Penning trap mass spectrometer (2005He26,2008We02).
Levels: band(a) Kπ=1/2+ PARITY DOUBLET band. 1/2[631]
Levels: band(b) Kπ=3/2- PARITY DOUBLET band. 3/2[761]
Levels: band(d) Kπ=5/2- PARITY DOUBLET band. 5/2[752]
Q-value: Note: Current evaluation has used the following Q record 1810 304450 198010 syst 2003Au03