Radiobiological intercomparison of clinical neutron beams for growth inhibition in Vicia faba bean roots
Relative biological effectiveness (RBE) and oxygen enhancement ratio (OER) values of different neutron beams produced at the variable energy cyclotron Cyclone of Louvain-la-Neuve (Belgium) were determined. The neutrons were obtained by bombarding a beryllium target with 34-, 45-, 65-, or 75-MeV protons or with 50-MeV deuterons. The biological system was growth inhibition in Vicia faba bean roots. Taking the p(65) + Be neutron beam as a reference, RBE values were found equal to 1.36 +/- 0.2, 1.20 +/- 0.1, 1.00 (ref), 0.98 +/- 0.1, and 1.18 +/- 0.1, respectively; the doses corresponding to 50% growth inhibition were 0.39, 0.44, 0.53, 0.54, and 0.45 Gy. For the same beams, OER values were found equal to 1.55 +/- 0.1, 1.38 +/- 0.1, 1.29 +/- 0.1, 1.41 +/- 0.1, and 1.60 +/- 0.2, respectively.
- Research Organization:
- UCL-Cliniques Universitaires St.-Luc, Brussels (Belgium)
- OSTI ID:
- 6276329
- Journal Information:
- Radiat. Res.; (United States), Vol. 117:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
NEUTRON BEAMS
RBE
VICIA
PLANT GROWTH
BIOLOGICAL RADIATION EFFECTS
COMPARATIVE EVALUATIONS
INHIBITION
OXYGEN
OXYGEN ENHANCEMENT RATIO
RADIOBIOLOGY
BACTERIA
BEAMS
BIOLOGICAL EFFECTS
BIOLOGY
ELEMENTS
GROWTH
LEGUMINOSAE
MAGNOLIOPHYTA
MAGNOLIOPSIDA
MICROORGANISMS
NONMETALS
NUCLEON BEAMS
PARTICLE BEAMS
PLANTS
RADIATION EFFECTS
RHIZOBIUM
560140* - Radiation Effects on Plants