Regular threshold-energy increase with charge for neutral-particle emission in collisions of electrons with
1High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan.
Abstract:
Electron-DNA anion collisions were studied using an electrostatic storage ring with a merging electron-beam technique. The rate of neutral particles emitted in collisions started to increase from definite threshold energies, which increased regularly with ion charges in steps of about 10 eV. These threshold energies were almost independent of the length and sequence of DNA, but depended strongly on the ion charges. Neutral particles came from breaks of DNAs, rather than electron detachment. The step of the threshold energy increase approximately agreed with the plasmon excitation energy. It is deduced that plasmon excitation is closely related to the reaction mechanism.
Related Concept Videos
Electron Behavior
The Energies of Atomic Orbitals
Atomic Radii and Effective Nuclear Charge
Ionization Energy
Electron Affinity
Electron Behavior
Electrons Orbit the Nucleus
Electrons are found in specific locations outside of the nucleus. The shell in which an electron resides indicates the general energy level of the electron: those closer to the nucleus have less energy,...


