Radiation chemistry of heavy-particle tracks. 1. General considerations

The radial distribution of dose around the path of a heavy ion in liquid water

“…The existence of a "track core" in the radial distribution of dose has been postulated by some authors (Mozumder and Magee, 1966;Magee and Chatterjee, 1980;Chatterjee and Magee, 1980), as connected with the Bohr adiabatic radius (e.g. Brandt and Ritchie, 1974).…”

Heavy-Ion Radiobiology: Cellular Studies

“…LET /2 00 ( 4) ( 5) Chatterjee and Magee (1980a) and Magee and Chatterjee (1980) have applied this track model to make explicit calculations for the radiation chemistry of water and the Fricke solution system, but this model has not been tested to describe radiobiological effects even though Chatterjee and Tobias (1975) have made some limited attempts.…”

Effect of Recombination between a Molecular Ion and an Electron on Radial Dose in the Irradiation of a Heavy Ion

“…Two types of radial dose distributions have been available (Kase et al, 2008), where we call them 'Katz type distribution' (Katz & Kobetich, 1969;Kraft et al, 1992) and 'Chatterjee type distribution' (Chatterjee & Schaefer, 1976;Magee & Chatterjee, 1980), respectively in this paper after the name of first developers of these distributions. There is a different feature in the region near the incident ion path between these distributions although this region is the most important to estimate the cell survival (Kase et al, 2008).…”

“…The paradigms employed in these distributions are the free electron gas (Lindhard & Winther, 1964;Ziegler et al, 2008) and the binary collision models (Katz & Kobetich, 1969;Kraft et al, 1992), respectively. In the Chatterjee type distribution (Chatterjee & Schaefer, 1976;Magee & Chatterjee, 1980) where the free electron gas model is employed, the electric field due to the induced polarization produces plasma oscillation that enhances the radial dose. However, in this model, the ionization energy of a molecule in the target is ignored.…”

“…The solution provided by Bloch indicates that we must consider the ionization energy of a molecule in the weak scattering because it becomes comparable with the energy transfer. It should be noted that the free electrons, which are produced from the weak scattering, forms the plasma oscillation and that this oscillation enhances radial dose in the Chatterjee type distribution (Chatterjee & Schaefer, 1976;Magee & Chatterjee, 1980). In our model, which is based on the binary collision model, we consider not only the impact processes between each individual charged particle (ion, free electron etc.)…”