Search Results - "Ramos Mendez, J."

Report on G4‐Med, a Geant4 benchmarking system for medical physics applications developed by the Geant4 Medical Simulation Benchmarking Group by Arce, P., Bolst, D., Bordage, M.‐C., Brown, J. M. C., Cirrone, P., Cortés‐Giraldo, M. A., Cutajar, D., Cuttone, G., Desorgher, L., Dondero, P., Dotti, A., Faddegon, B., Fedon, C., Guatelli, S., Incerti, S., Ivanchenko, V., Konstantinov, D., Kyriakou, I., Latyshev, G., Le, A., Mancini‐Terracciano, C., Maire, M., Mantero, A., Novak, M., Omachi, C., Pandola, L., Perales, A., Perrot, Y., Petringa, G., Quesada, J. M., Ramos‐Méndez, J., Romano, F., Rosenfeld, A. B., Sarmiento, L. G., Sakata, D., Sasaki, T., Sechopoulos, I., Simpson, E. C., Toshito, T., Wright, D. H.

“…Background Geant4 is a Monte Carlo code extensively used in medical physics for a wide range of applications, such as dosimetry, micro‐ and nanodosimetry,…”
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Solar degradation of contaminants in water: TiO2 solar photocatalysis assisted by up-conversion luminescent materials by Borges, M.E., Sierra, M., Méndez-Ramos, J., Acosta-Mora, P., Ruiz-Morales, J.C., Esparza, P.

“…Solar energy, along with other renewable resources, could potentially solve environmental problems, as demonstrated by recent developments in the use of solar…”
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Optimizing Er/Yb ratio and content in Er–Yb co-doped glass-ceramics for enhancement of the up- and down-conversion luminescence by Tikhomirov, V.K., Rodríguez, V.D., Méndez-Ramos, J., del-Castillo, J., Kirilenko, D., Van Tendeloo, G., Moshchalkov, V.V.

“…Er3+–Yb3+ co-doped transparent glass-ceramics with varying Er/Yb content and ratio have been prepared. High quantum yields for up- and down-conversion…”
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Rare-earth doped nano-glass-ceramics for extending spectral response of water-splitting semiconductor electrodes by high intense UV-blue up-conversion: Turning the sun into blue by Méndez-Ramos, J., Ruiz-Morales, J.C., Acosta-Mora, P., del-Castillo, J., Yanes, A.C.

“…The use of hydrogen to feed Fuel Cells emerges as an attractive renewable solution to meet the terawatt carbon-neutral energy demand challenge. Rare-earth…”
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Down-shifting in Ce3+–Tb3+ co-doped SiO2–LaF3 nano-glass–ceramics for photon conversion in solar cells by Velázquez, J.J., Rodríguez, V.D., Yanes, A.C., del-Castillo, J., Méndez-Ramos, J.

“…► Ce3+, Tb3+ doped and Ce3+–Tb3+ co-doped SiO2–LaF3 nano-glass ceramics were synthesized by sol–gel method. ► LaF3 nanocrystal precipitation was confirmed by…”
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Role of the Yb3+ concentration in the high efficient UV-blue up-conversion emission from hydrothermally grown Yb3+/Er3+-doped K2YF5 crystals by Méndez-Ramos, J., Acosta-Mora, P., Ruiz-Morales, J.C., Khaidukov, N.M.

“…•Yb3+/Er3+ doped K2YF5 crystals were synthesized under hydrothermal conditions.•Intense up-conversion to enhance TiO2 & Fe2O3 spectral response for…”
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Sol-gel transparent nano-glass-ceramics containing Eu3+-doped NaYF4 nanocrystals by SANTANA-ALONSO, A, YANES, A. C, MENDEZ-RAMOS, J, DEL-CASTILLO, J, RODRIGUEZ, V. D

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Yb3+―Er3+ co-doped sol―gel transparent nano-glass-ceramics containing NaYF4 nanocrystals for tuneable up-conversion phosphors by YANES, A. C, SANTANA-ALONSO, A, MENDEZ-RAMOS, J, DEL-CASTILLO, J, RODRIGUEZ, V. D

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Heavy rare-earth-doped ZBLAN glasses for UV–blue up-conversion and white light generation by Méndez-Ramos, J., Acosta-Mora, P., Ruiz-Morales, J.C., Hernández, T., Borges, M.E., Esparza, P.

“…Noticeable UV–vis up-conversion luminescence of Er3+ and Tm3+ ions sensitised by Yb3+ ions in ZrF4–BaF2–LaF3–AlF3–NaF (ZBLAN) fluoride glasses have been…”
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Luminescence and structural characterization of transparent nanostructured Eu3+-doped LaF3–SiO2 glass–ceramics prepared by sol–gel method by Yanes, A.C., Del-Castillo, J., Méndez-Ramos, J., Rodríguez, V.D., Torres, M.E., Arbiol, J.

“…Glass–ceramics with composition of 89.9SiO2–10LaF3–0.1EuF3 (mol%) were prepared by sol–gel method. LaF3 nanocrystals, precipitated by heat-treatments, were…”
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Up-conversion in sol-gel derived nano-glass-ceramics comprising NaYF4 nano-crystals doped with Yb3+, Ho3+ and Tm3 by SANTANA-ALONSO, A, MENDEZ-RAMOS, J, YANES, A. C, DEL-CASTILLO, J, RODRIGUEZ, V. D

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TOPAS-nBio: An Extension to the TOPAS Simulation Toolkit for Cellular and Sub-cellular Radiobiology by Schuemann, J., McNamara, A. L., Ramos-Méndez, J., Perl, J., Held, K. D., Paganetti, H., Incerti, S., Faddegon, B.

“…The TOPAS Monte Carlo (MC) system is used in radiation therapy and medical imaging research, having played a significant role in making Monte Carlo simulations…”
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SU‐E‐T‐478: Geometrical Splitting Technique to Improve the Computational Efficiency in Monte Carlo Calculations for Proton Therapy by Ramos‐Mendez, J, Perl, J, Faddegon, B, Paganetti, H

“…Purpose: To implement a geometry based particle splitting technique in order to reduce the computation time when generating treatment head phase space files…”
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Up-conversion and colour tuneability in Yb3+―Er3+―Tm3+ co-doped transparent nano-glass-ceramics by LEON-LUIS, S. F, ABREU-AFONSO, J, PENA-MARTINEZ, J, MENDEZ-RAMOS, J, YANES, A. C, DEL-CASTILLO, J, RODRIGUEZ, V. D

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Monte Carlo simulation of chemistry following radiolysis with TOPAS-nBio by Ramos-Méndez, J, Perl, J, Schuemann, J, McNamara, A, Paganetti, H, Faddegon, B

“…Simulation of water radiolysis and the subsequent chemistry provides important information on the effect of ionizing radiation on biological material. The…”
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Laser and gain parameters at 2.7 μm of Er3+-doped oxyfluoride transparent glass-ceramics by TIKHOMIROV, V. K, MENDEZ-RAMOS, J, RODRIGUEZ, V. D, FURNISS, D, SEDDON, A. B

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Luminescent properties of Eu3+-Tb3+-doped SiO2-SnO2-based nano-glass-ceramics prepared by sol-gel method by DEL-CASTILLO, J, YANES, A. C, VELAZQUEZ, J. J, MENDEZ-RAMOS, J, RODRIGUEZ, V. D

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TOPAS simulation of photoneutrons in radiotherapy: accuracy and speed with variance reduction by Ramos-Mendez, J, Ortiz, Catalan R, Schuemann, J, Paganetti, H, Faddegon, B

“… We provide optimal particle split numbers for speeding up TOPAS Monte Carlo simulations of linear accelerator (linac) treatment heads while maintaining…”
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Spectroscopic characterization and up-conversion in sol-gel derived Yb3+-Pr3+ co-doped SiO2-LaF3 nano-glass-ceramics by VELAZQUEZ, J. J, YANES, A. C, DEL-CASTILLO, J, MENDEZ-RAMOS, J, RODRIGUEZ, V. D

“…The up-conversion of near infrared photons into the visible range is of major interest for lighting appliances and photonic integrated devices. Here we report…”
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Gain cross-sections of transparent oxyfluoride glass-ceramics single-doped with Ho3+ (at 2.0 μm) and with Tm3+ (at 1.8 μm) by TIKHOMIROV, V. K, MENDEZ-RAMOS, J, RODRIGUEZ, V. D, FURNISS, D, SEDDON, A. B

“…We have developed transparent 3.5mol% Ho3+ and Tm3+ single-doped oxyfluoride glass-ceramics, where a large fraction of dopant ions is segregated into…”
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