Abstract
The nuclear structure of 40Ar, 112Cd, 133Cs, 151Eu, 154Sm, and 226Ra target nuclei used in nuclear battery technology was investigated. These nuclei are widely used for the radioisotope thermo-electric generator space studies and for betavoltaic battery microelectronic systems. For this purpose, some nuclear static properties were calculated. In particular, the single particle radial nuclear density distribution, the corresponding root mean square radii, neutron skin thicknesses, and binding energies were calculated within the framework of Hartree-Fock approximation with Skyrme interaction. The bremsstrahlung spectra produced by the absorption of beta particles through the betavoltaic process and backscattered photons spectrum were also studied. All the obtained results were compared with available experimental data.
Highlights
Because“ of their. growing use as a . “long-life“ “source“ of energy, nuclear batteries have a significant position in technology, in “space-craft“ and microelectronicIraqi Journal of Science, 2021, Vol 62, No 1, pp: 116-129 applications
The nuclear static properties of some target nuclei used for the production of radioactive nuclei which are employed in nuclear batteries, namely 40Ar, 112Cd, 133Cs, 151Eu, 154Sm, and 226Ra, have been calculated in the framework of Hartree-Fock (HF) approximation with Skyrme type interaction
The second part deals with the bremsstrahlung spectrum and backscattered photons produced by the absorption of beta particles emitted from the product nuclei, namely 42Ar, 113Cd, 134Cs, 152Eu, 155Eu, and 227Ac via ( ) reaction (Table-2)
Summary
Because“ of their. growing use as a . “long-life“ “source“ of energy, nuclear batteries have a significant position in technology, in “space-craft“ and microelectronicIraqi Journal of Science, 2021, Vol 62, No 1, pp: 116-129 applications. Nuclear batteries convert thermal energy resulting from the decay of radioactive material into .electricity [1,2]. There are two main types of nuclear batteries, which are the thermal converting and non-thermal converting such as betavoltaics [3]. This type of batteries converts energy disintegration into electricity via p-n junctions using semiconductor devices, because of the greater densities of energy and the longer radioisotope life relative to the other types [4]. The nuclear static properties of some target nuclei used for the production of radioactive nuclei which are employed in nuclear batteries, namely 40Ar, 112Cd, 133Cs, 151Eu, 154Sm, and 226Ra, have been calculated in the framework of Hartree-Fock (HF) approximation with Skyrme type interaction. The simulation of bremsstrahlung emission by beta particles, using numerical cross-section and backscattered photons, was applied
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