ADOPTED LEVELS, GAMMAS for 143Xe
Authors: E. Browne, J. K. Tuli | Citation: Nucl. Data Sheets 113, 715 (2012) | Cutoff date: 31-May-2011
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=7471 keV 23 | S(n)= 3045 keV 6 | S(p)= 1.27×104 keV 4 | Q(α)= -2423 keV 6 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 248Cm SF decay | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | A | 5/2- | 0.511 s 6 % β- = 100 % β-n > 0 | |||||
| 78.8 | A | (3/2,5/2,7/2)+ | 78.8 | 100 | E1 | 0.0 | 5/2- | |
| 322.9 | A | 244.1 | 100 | 78.8 | (3/2,5/2,7/2)+ | |||
| 547.3 | A | 224.4 | 100 | 322.9 | ||||
| 567.0 | A | 244.1 | 100 | 322.9 | ||||
| 741.1 | A | 174.0 193.7 418.2 | 68 3 100 5 | 567.0 547.3 322.9 | ||||
| 1008.2 | A | 267.1 | 100 | 741.1 | ||||
| 1428.9 | A | 420.7 | 100 | 1008.2 | ||||
| 1962.7 | A | 533.8 | 100 | 1428.9 | ||||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 1 - γ CASCADE | |||||||
| 78.8 | (3/2,5/2,7/2)+ | ||||||
| 322.9 | 244.1 | 100 | 78.8 | (3/2,5/2,7/2)+ | |||
| 741.1 | 174.0 193.7 418.2 | 68 3 100 5 | 567.0 547.3 322.9 | ||||
| 1008.2 | 267.1 | 100 | 741.1 | ||||
| 1428.9 | 420.7 | 100 | 1008.2 | ||||
| 1962.7 | 533.8 | 100 | 1428.9 | ||||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 78.8 | (3/2,5/2,7/2)+ | 78.8 | E1 | 0.411 | α=0.411, α(K)=0.351 5, α(L)=0.0477 7, α(M)=0.00963 14, α(N+)=0.00300 5 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 78.8 | (3/2,5/2,7/2)+ | E(level): γ CASCADE. | |
| 322.9 | E(level): γ CASCADE. | ||
| 741.1 | E(level): γ CASCADE. | ||
| 1008.2 | E(level): γ CASCADE. | ||
| 1428.9 | E(level): γ CASCADE. | ||
| 1962.7 | E(level): γ CASCADE. |
| E(level) | E(gamma) | Comments |
Based on the shell model for deformed or spherical nuclei it is unlikely the existence of two 143Xe long lived β- decaying isomers. The T1/2=0.99 s activity previously assigned to 143Xe (T1/2=0.99 s 14 (1971Kr22), 0.96 s 2 (1965Pa14), ≈1 s (1950Di01); Eγ=139.5, 194.2 (1971Kr22)) possibly belongs to another Xe isotope, maybe 142Xe (T1/2=1.22 s 2)
Observed delayed neutrons (1972Am01) and γ rays following the emission of delayed neutrons (in nuclei with α=142) (1988Fa06)
Fission fragment yields: 2003Ga21, 2000Ga60
Atomic mass measurements: 2010Li02, 2009Ne11, 2008Su19.
Calculated level energies, magnetic and quadrupole moments: 2007Ji14.
Q-value: Note: Current evaluation has used the following Q record 7472 23 3045 5 12468 syst-2259 syst 2011AuZZ