Results 161 to 170 of about 7,985,151 (196)
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Relative biological effectiveness (RBE) of 50 MV (Be) neutrons for acute and late skin injury
International Journal of Radiation Oncology*Biology*Physics, 1978Abstract Fractionated doses of E d = 50 MeV (D-Be) neutrons and γ-rays were delivered to areas of pigs' skin. Acute response was measured in terms of desquamation, and late (several months) response as degree of contraction relative to control areas.
H R, Withers +4 more
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Health Physics, 1996
The value of the RBE of a test radiation is conventionally determined against a known standard radiation for a chosen response of a selected biological tissue and is expressed as the ratio of tissue absorbed doses at equal effect, or as ratio of magnitudes of the effect at equal absorbed dose.
L E, Feinendegen +2 more
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The value of the RBE of a test radiation is conventionally determined against a known standard radiation for a chosen response of a selected biological tissue and is expressed as the ratio of tissue absorbed doses at equal effect, or as ratio of magnitudes of the effect at equal absorbed dose.
L E, Feinendegen +2 more
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Physics in Medicine and Biology, 1987
A new model is applied to bacteria exposed to tritiated water. In this model, the relation between the radiation quality, induction of single- and double-strand breaks in DNA and their repair in vivo can be reasonably described in terms of the microdosimetric distribution and the modification factors for single- and double-strand breaks in DNA.
S, Iwanami, N, Oda
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A new model is applied to bacteria exposed to tritiated water. In this model, the relation between the radiation quality, induction of single- and double-strand breaks in DNA and their repair in vivo can be reasonably described in terms of the microdosimetric distribution and the modification factors for single- and double-strand breaks in DNA.
S, Iwanami, N, Oda
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American Journal of Roentgenology, 1966
Survival curves obtained by in vivo total body irradiation of young CF1 mice indicate a change in the RBE of 35 mev. electrons as they penetrate through tissue. The results are in agreement with those of Markus and Sticinsky2 and with the calculations of Haynes and Dolphin1 in that they suggest a long plateau region of low LET followed by terminal rise.
G, Schwarz, R, Berg, C, Botstein
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Survival curves obtained by in vivo total body irradiation of young CF1 mice indicate a change in the RBE of 35 mev. electrons as they penetrate through tissue. The results are in agreement with those of Markus and Sticinsky2 and with the calculations of Haynes and Dolphin1 in that they suggest a long plateau region of low LET followed by terminal rise.
G, Schwarz, R, Berg, C, Botstein
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Journal of Radiotherapy in PracticeIntroduction: This work calculates the microdosimetric spectra and evaluates the relative biological effectiveness (RBE10) of oxygen and carbon ions using Monte Carlo simulation.
David Bolst, Chee Keat Ying, Linh T Tran
exaly +1 more source
International Journal of Radiation Biology, 1996
Effects of 60Co gamma-rays and 252Cf neutrons on human sperm chromosomes were studied using our interspecific in vitro fertilization system to estimate relative biological effectiveness (RBE) of neutrons. Semen samples were exposed to 0.5, 1.0 and 2.0 Gy of 60Co gamma-rays at 1.7 cGy/ min and 0.25, 0.5 and 1.0 Gy of 252Cf radiation at 1.3-1.7 cGy/ min.
H, Tateno +4 more
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Effects of 60Co gamma-rays and 252Cf neutrons on human sperm chromosomes were studied using our interspecific in vitro fertilization system to estimate relative biological effectiveness (RBE) of neutrons. Semen samples were exposed to 0.5, 1.0 and 2.0 Gy of 60Co gamma-rays at 1.7 cGy/ min and 0.25, 0.5 and 1.0 Gy of 252Cf radiation at 1.3-1.7 cGy/ min.
H, Tateno +4 more
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[Relative biological effectiveness (RBE) of low-dose californium-252].
Comptes rendus des seances de la Societe de biologie et de ses filiales, 1982Relative biological effectiveness (RBE) of 252Cf, with respect to 192Ir, has been determined at the low dose rates commonly used in interstitial and intracavitary therapy. The biological criterion was growth reduction in Vicia faba bean roots. Two varieties of Vicia faba were used.
J, Van Dam +3 more
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Treatment planning for light ions: How to take into account Relative Biological Effectivness (RBE)
Strahlentherapie und Onkologie, 1999A new treatment planning program was developed for the heavy ion therapy facility at GSI, which is tailored to the special needs for an active beam delivery using a magnetic raster scanner. It also includes a biological model for the estimation of biological effective dose for carbon ions and realizes a fully biological treatment planning.
O, Jäkel +4 more
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Radiology, 1976
EMT6 tumors were exposed to neon ions in vivo and in vitro in the plateau and spread-out Bragg peak regions of the beam. The RBE in vivo was 1.7-2.1 in the plateau region and 2.6-2.9 in the Bragg peak; the OER was 2.0 and 1.4, respectively. Neon ions have great potential in the radiotherapy of tumors because of their decreased OER and excellent depth ...
K K, Fu, T L, Phillips
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EMT6 tumors were exposed to neon ions in vivo and in vitro in the plateau and spread-out Bragg peak regions of the beam. The RBE in vivo was 1.7-2.1 in the plateau region and 2.6-2.9 in the Bragg peak; the OER was 2.0 and 1.4, respectively. Neon ions have great potential in the radiotherapy of tumors because of their decreased OER and excellent depth ...
K K, Fu, T L, Phillips
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Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine, 2023
Relative biological effectiveness is a radiobiological parameter relevant in radiotherapy planning and useful in evaluating the physiological impact of radiation in different tissues. Targeted radionuclide therapy allows the selective and specific deposition of higher radiation doses in a noninvasive way and without collateral effects through the ...
Jezabel Esmeralda, de la Fuente-Mendoza +4 more
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Relative biological effectiveness is a radiobiological parameter relevant in radiotherapy planning and useful in evaluating the physiological impact of radiation in different tissues. Targeted radionuclide therapy allows the selective and specific deposition of higher radiation doses in a noninvasive way and without collateral effects through the ...
Jezabel Esmeralda, de la Fuente-Mendoza +4 more
openaire +1 more source