This contribution discusses the characteristics of different types of nuclear reactions and the influence of the beam energy in view of future prospects for secondary-beam production. First, electronic interactions in the target are considered because they define the usable target thickness. Rather high beam energies are advantageous. Secondly, the nuclear-reaction aspects are discussed. Three ...

Organic-inorganic hybrid molecular architectures utilizing self-assembled monolayers (SAMs) of organic chromophores (e.g., acene derivatives) are systematically discussed to examine the photophysical properties together with covalently-linked dimeric and oligomeric forms. Multi-exciton generation (i.e., singlet fission) light energy conversion processes that occur in a reaction site composed ch...

Mostly for the purpose of applications for the energy and the environment and for the design of sources of neutrons or exotic nuclides, intense research has been dedicated to spallation, induced by protons or light projectiles at incident energies of around 1 GeV. In this energy range, while multifragmentation has still a minor share in the total reaction cross section, it was observed to have,...

This work is a study of the competition between the two unimolecular reaction channels available to the vinoxy radical (CH(2)CHO), C-H fission to form H+ketene, and isomerization to the acetyl radical (CH(3)CO) followed by C-C fission to form CH(3) + CO. Chloroacetaldehyde (CH(2)ClCHO) was used as a photolytic precursor to the vinoxy radical in its ground state; photodissociation of chloroaceta...

The Centurion – Halite experiment demonstrated the feasibility of igniting a deuterium – tritium micro-explosion with an energy of not more than a few megajoule, and the Mike test the feasibility of a pure deuterium explosion with an energy of more than 10 6 megajoule. In both cases the ignition energy was supplied by a fission bomb explosive. While an energy of a few megajoule, to be released ...

BNCT is a radiotherapy modality based on the neutron capture and fission reactions that occur when boron-10 is irradiated by thermal neutrons. This reaction generates alpha and lithium that produce high density of ionizations in close to the reaction site. The concept provides high absorbed doses into the cancerous cells preserving the adjacent healthy tissues. Nowadays, the available neutron s...

With its powerful installations, GSI, Darmstadt, provides unique conditions for fundamental and applied research on a variety of subjects in nuclear physics and other fields with heavy-ion beams of stable and radioactive species. Intensive work on nuclear data is being made e.g. on nuclear masses, half lives, nuclide yields from lowenergy fission, and nuclide production in spallation reactions....