Results 191 to 200 of about 17,435 (223)
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Radiation Research, 1994
To use the micronucleus (MN) assay as a biological dosimeter, it is essential that the dose response to different radiation qualities is known. In this paper we present dose-response curves for MN induction by X rays (14, 50 and 350 kVp) and 60Co gamma rays. The dose responses for 14 kVp compared to 50 kVp and for 350 kVp compared to 60Co were found to
F, Verhaegen, A, Vral
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To use the micronucleus (MN) assay as a biological dosimeter, it is essential that the dose response to different radiation qualities is known. In this paper we present dose-response curves for MN induction by X rays (14, 50 and 350 kVp) and 60Co gamma rays. The dose responses for 14 kVp compared to 50 kVp and for 350 kVp compared to 60Co were found to
F, Verhaegen, A, Vral
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2013
A primary goal for treatment delivery is to achieve a homogenous effect throughout the target volume. In contrast to conventional photon therapy, this cannot be achieved by applying a uniform distribution of absorbed dose within the target volume due to the drastic change in the biological effectiveness of ion beam as shown in the previous section.
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A primary goal for treatment delivery is to achieve a homogenous effect throughout the target volume. In contrast to conventional photon therapy, this cannot be achieved by applying a uniform distribution of absorbed dose within the target volume due to the drastic change in the biological effectiveness of ion beam as shown in the previous section.
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A proposed modification to the microdosimetric theory of RBE
Journal of Theoretical Biology, 1981Abstract A discussion on some difficulties with the existing theory of microdosimetry (Kellerer & Rossi, 1972) leads to proposed modifications of the microdosimetric formalism which provide an explanation of the characteristic features of RBE without resort to a damage saturation mechanism.
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Appropriate RBEs for use in neutron therapy
The British Journal of Radiology, 1980In her letter on “Gamma contamination of neutron beams”, Denekamp (1980) draws attention to the errors introduced by varied practices in quoting neutron dose with or without the contaminating gamma;-ray dose. She further points out that quoting the effective dose, i.e.
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1992
Single dose RBEs for the radiations encountered in BNCT have been determined1 and can provide useful guidance for the tolerance to be expected. The difficulty of microdosimetric determination of dose2, the rapidly varying mix of constituent high and low LET radiations with depth, the possible synergistic interaction between high and low LET radiations3,
Reinhard A. Gahbauer +3 more
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Single dose RBEs for the radiations encountered in BNCT have been determined1 and can provide useful guidance for the tolerance to be expected. The difficulty of microdosimetric determination of dose2, the rapidly varying mix of constituent high and low LET radiations with depth, the possible synergistic interaction between high and low LET radiations3,
Reinhard A. Gahbauer +3 more
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Chromosome Aberrations and the Theory of RBE
International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine, 1965SummaryIt is suggested that primary radiation damage to a macromolecule in a cell which may lead to observable biological effect is normally the direct effect of a single energy-loss event in the macromolecule. This concept is applied to the production of chromosome aberrations, regarding a local region of a chromosome as a molecule of DNA, and ...
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The RBE in Ion Beam Radiotherapy: In Vivo Studies and Clinical Application
Zeitschrift Fur Medizinische Physik, 2021Christin Glowa +2 more
exaly
An Ion-Independent Phenomenological Relative Biological Effectiveness (RBE) Model for Proton Therapy
Radiotherapy and Oncology, 2022Christian Hahn, Armin Lühr, Liheng Tian
exaly