Results 181 to 190 of about 9,817 (201)

WE‐E‐108‐03: Relative Biological Effectiveness (RBE) of Protons in Pristine Bragg Peaks

Medical Physics, 2013
Purpose: Quantify spatial variations in proton RBE in the plateau region and near the distal edge of pristine Bragg peaks. Methods: The linear energy transfer (LET) and dosimetric characteristics of pristine Bragg peaks were simulated for 30 and 200 MeV proton beams using MCNPX Version 2.7.0.
S Streitmatter, R Stewart, G Sandison
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Relative biological effectiveness (RBE) of 252Cf fission neutrons for the induction of chromosome damage in human spermatozoa

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, Y, Kamiguchi, S, Watanabe, K, Mikamo, S, Sawada   +4 more
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Estimation of the relative biological effectiveness (RBE) of the Lu-DOTA-iPSMA177 radiopharmaceutical.

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, Erika Patricia, Azorín-Vega, Héctor Javier, Mendoza-Nava, Griselda, Rodríguez-Martínez, Mauricio, Rodríguez-Dorantes   +4 more
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Relative biological effectiveness (RBE) of 210 Po alpha-particles versus X-rays on lethality in bovine endothelial cells

International Journal of Radiation Biology, 2003
Alpha-radiation from polonium-210 ((210)Po) can elevate background radiation dose by an order of magnitude in people consuming large quantities of meat and seafood, particularly caribou and reindeer. Because up to 50% of the ingested (210)Po body burden is initially found in the blood, a primary target for the short range alpha-particles is the ...
P A, Thomas, B L, Tracy, T, Ping, M, Wickstrom, N, Sidhu, L, Hiebert   +5 more
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Relative Biologic Effectiveness (RBE) of 50 kV X-rays Measured in a Phantom for Intraoperative Tumor-Bed Irradiation

International Journal of Radiation Oncology*Biology*Physics, 2013
Intraoperative radiation therapy (IORT) with low-energy x-rays is used to treat the tumor bed during breast-conserving surgery. The purpose was to determine the relative biologic effectiveness (RBE) of 50-kV x-rays for inactivation of cells irradiated in a tumor-bed phantom.The RBE was determined for clonogenic inactivation of human tumor and normal ...
Qi, Liu, Frank, Schneider, Lin, Ma, Frederik, Wenz, Carsten, Herskind   +4 more
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Relative biological effectiveness (RBE) of heavy ions (O+8) for producing retinal lesions.

Aviation, space, and environmental medicine, 1977
The relative biological effectiveness (RBE) for oxygen ions (250 MeV/nucleon) for producing an ischemic retinal lesion in the rhesus monkey has been shown to be greater than 10. The RBE concept and the use of the standard methodology is discussed with respect to other published reports.
C H, Bonney, K A, Hardy, D M, Hunter, G E, Conley   +3 more
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Relative biological effectiveness (RBE) values for proton beam therapy. Variations as a function of biological endpoint, dose, and linear energy transfer

Physics in Medicine and Biology, 2014
Proton therapy treatments are based on a proton RBE (relative biological effectiveness) relative to high-energy photons of 1.1. The use of this generic, spatially invariant RBE within tumors and normal tissues disregards the evidence that proton RBE varies with linear energy transfer (LET), physiological and biological factors, and clinical endpoint ...
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TU‐C‐BRB‐05: Proton Relative Biological Effectiveness (RBE) Determined Using Monte Carlo DNA Damage Simulations

Medical Physics, 2009
Purpose Determine tissue‐specific proton relative biological effectiveness (RBE) as a function of fraction size, dose‐rate and position within the spread out Bragg peak (SOBP). Methods A general formula derived from the linear‐quadratic (LQ) model is developed to determine a dose‐weighted RBE for mixed radiation fields, including position‐dependent ...
openaire   +1 more source

Estimation of the relative biological effectiveness (RBE) of the 177Lu − DOTA − iPSMA radiopharmaceutical

Applied Radiation and Isotopes, 2023
Jezabel Esmeralda de la Fuente-Mendoza, Erika Patricia Azorín-Vega, Héctor Javier Mendoza-Nava, Griselda Rodríguez-Martínez, Mauricio Rodríguez-Dorantes   +4 more
openaire   +1 more source

Relative Biological Effectiveness (RBE)

2013
Ning J. Yue, Kent Lambert, Jay E. Reiff, Anthony E. Dragun, Ning J. Yue, Jay E. Reiff, Jean St. Germain, Susan M. Varnum, Marianne B. Sowa, William F. Morgan, Susan M. Varnum, Marianne B. Sowa, Grace J. Kim, William F. Morgan, James H. Brashears, Lydia T. Komarnicky-Kocher, Claudia Rübe, Anthony E. Dragun, Christin A. Knowlton, Michelle Kolton Mackay, Christin A. Knowlton, Michelle Kolton Mackay, James H. Brashears, Hedvig Hricak, Oguz Akin, Hebert Alberto Vargas, Darek Michalski, M. Saiful Huq, James H. Brashears, Brandon J. Fisher, James H. Brashears, Filip T. Troicki, Jaganmohan Poli, Mary Ellen Masterson-McGary, Luther W. Brady, Michael L. Wong, Edward J. Gracely, Edward J. Gracely, Daniel Yeung, Jatinder Palta, John P. Christodouleas, Yan Yu, Laura Doyle, Timothy Holmes, Claus Rödel, James H. Brashears, Carsten Nieder, Johannes A. Langendijk, George E. Laramore, Jay J. Liao, Jason K. Rockhill, Lydia T. Komarnicky-Kocher, Erik Limbergen, Stephan Mose, John P. Lamond, Brandon J. Fisher, Larry C. Daugherty, Robert H. Sagerman, Caspian Oliai, Mary Ellen Masterson-McGary, Brandon J. Fisher, Larry C. Daugherty   +61 more
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