Über die Abhängigkeit der relativen biologischen Wirksamkeit hochenergetischer Bremsstrahlen von der durchstrahlten Materieschicht / Dependence of the Relative Biological Efficiency of High Energy Bremssstrahlen on the Depth in a Phantom
Year: 1969
Type: article
Abstract: The Relative Biological Efficiency (RBE) of 6-GeV-bremsstrahlung on 3-days-old seedlings of Vicia faba was investigated with the Deutsches ElektronenSynchrotron. Dosimetry was carried out by means of the butanol-sensitized FeII/FeIII-reaction. In a Lucite-phantom we observed an increase of the RBE from 0,65 at the surface to values of about 2 at a depth of 40 cm. As changes of that order of magnitude are doubtless beyond the limits of the maximum experimental error we suppose that production of heavy particles by nuclear reactions such as (γ, n) or (γ, p) in deeper layers of matter might cause an increase of the linear energy transfer of the beam.
Source: Zeitschrift für Naturforschung B
Authors: F. Stähler, F. Zywietz, W. Ewert, H. A. Künkel
Institution: Universität Hamburg
Language: German
Subfield: Radiation
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,712
OpenAlex ID: W111260401