Barium-144 is a radioisotope of the chemical element barium, which, in addition to the element-specific 56 protons, has 88 neutrons in the atomic nucleus, resulting in the mass number 144. The very short-lived, only artificially producible, unstable and therefore radioactive nuclide has no practical significance; dealing with 144Ba is for academic purposes only.
The neutron-rich nucleus of the isotope shows an octupole deformation.
See also: list of Barium isotopes.
Half-life T½ = 11.5(2) s respectively 1.15 × 101 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|---|---|---|---|
β- | 144La | 100 % | 3.083(15) MeV |
Direct parent isotopes are: 144Cs, 145Cs.
Z | Isotone N = 88 | Isobar A = 144 |
---|---|---|
49 | 137In | |
50 | 138Sn | |
51 | 139Sb | |
52 | 140Te | |
53 | 141I | 144I |
54 | 142Xe | 144Xe |
55 | 143Cs | 144Cs |
56 | 144Ba | 144Ba |
57 | 145La | 144La |
58 | 146Ce | 144Ce |
59 | 147Pr | 144Pr |
60 | 148Nd | 144Nd |
61 | 149Pm | 144Pm |
62 | 150Sm | 144Sm |
63 | 151Eu | 144Eu |
64 | 152Gd | 144Gd |
65 | 153Tb | 144Tb |
66 | 154Dy | 144Dy |
67 | 155Ho | 144Ho |
68 | 156Er | 144Er |
69 | 157Tm | 144Tm |
70 | 158Yb | |
71 | 159Lu | |
72 | 160Hf | |
73 | 161Ta | |
74 | 162W | |
75 | 163Re | |
76 | 164Os | |
77 | 165Ir | |
78 | 166Pt |
[1] - C. Chung, W. B. Walters et al.:
Decay of neutron-rich 144Ba to levels of 144La.
In: Physical Review C, 26, 1198, (1982), DOI 10.1103/PhysRevC.26.1198.
[2] - B. Bucher et al.:
Direct Evidence of Octupole Deformation in Neutron-Rich 144Ba.
In: Physical Review Letters, 116, 112503, (2016), DOI 10.1103/PhysRevLett.116.112503.
Last update: 2023-05-15
Perma link: https://www.chemlin.org/isotope/barium-144
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