Fusion-born alpha particles in ITER disruption simulations are investigated as a possible drive of Alfv\'enic instabilities. The ability these waves to expel runaway electron (RE) seed is explored the pursuit passive, inherent RE mitigation scenario. spatiotemporal evolution particle distribution during calculated using linearized Fokker-Planck solver CODION coupled fluid simulation. These done...

The purpose of this experiment is to explore the relation between the mean lives of alpha-active nuclides and the energies of the alpha particles they emit. You will study portions of the sequences of radioactive transformations whereby uranium is transmuted into lead. Various procedures will be used to measure the alpha-particle energies and lifetimes of five alpha-active nuclides with mean li...

The $\alpha$-decay phenomennon has been studied for more than a century but the mechanism of $\alpha$ particle formation and its tunneling process have not yet fully understood. As an alternative to lifetime measurement, we propose proton-induced knockout reaction, ($p$,$p\alpha$), as new probe surface probability nuclei. $^{210,212}$Po($p$,$p\alpha$)$^{206,208}$Pb reaction is described by dist...

1 Energy release in alpha-decay 2 Consider a nucleus which is stable against decay by proton or neutron emission { the least bound nucleon still has (say) several MeV of binding energy. This nucleus may nevertheless still be able to decay by using the fact that if it can emit an alpha-particle (2He), it can use the binding energy of the alpha to supply the energy needed for the escape. That is,...

The higher potential efficacy of alpha-particle radiopharmaceutical therapy lies in the 3- to 8-fold greater relative biological effectiveness (RBE) of alpha particles relative to photon or beta-particle radiation. This greater RBE, however, also applies to normal tissue, thereby reducing the potential advantage of high RBE. As alpha particles typically cause DNA double-strand breaks (DSB), tar...

Various gedanken experiments of quantum gravity phenomenology in search a complete theory near the Planck scale indicate modification Heisenberg uncertainty principle to generalized (GUP). This leads nontrivial contributions on Hamiltonian nonrelativistic particle moving an arbitrary potential. In this paper we study path integral representation potential using most general form GUP containing ...

PURPOSE The objective of this study is to evaluate requirements for radionuclide-based solid tumor therapy by assessing the radial dose distribution of beta-particle-emitting and alpha-particle-emitting molecules localized either solely within endothelial cells of tumor vasculature or diffusing from the vasculature throughout the adjacent viable tumor cells. METHODS Tumor blood vessels were m...