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  • Coincidence summing corrections for volume samples using the PENELOPE/penEasy Monte Carlo code

     Vargas Drechsler, Arturo; Camps Brunés, Anna; Serrano Carreño, Maria Isabel; Duch Guillen, Maria Amor
    Applied radiation and isotopes
    Vol. 87, p. 376-379
    DOI: 10.1016/j.apradiso.2013.11.057
    Date of publication: 2014-05
    Journal article

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    The coincidence summing correction factors estimated with penEasy, a steering program for the Monte Carlo simulation code PENELOPE, and with penEasy-eXtended, an in-house modified version of penEasy, are presented and discussed for 152Eu and 134Cs in volume sources. The geometries and experimental data were obtained from an intercomparison study organized by the International Committee for Radionuclide Metrology (ICRM). A significant improvement in the results calculated with PENELOPE/penEasy was obtained when X-rays are included in the 152Eu simulations.

    The coincidence summing correction factors estimated with penEasy, a steering program for the Monte Carlo simulation code PENELOPE, and with penEasy-eXtended, an in-house modified version of penEasy, are presented and discussed for 152Eu and 134Cs in volume sources. The geometries and experimental data were obtained from an intercomparison study organized by the International Committee for Radionuclide Metrology (ICRM). A significant improvement in the results calculated with PENELOPE/penEasy was obtained when X-rays are included in the 152Eu simulations.

  • Validation of aerosol low-level activities by comparison with a deep underground laboratory

     Camacho Garcia, Antonia; Laubenstein, M.; Vargas Drechsler, Arturo; Serrano Carreño, Maria Isabel; Vallés, I.; Plastino, W.; Duch Guillen, Maria Amor
    Applied radiation and isotopes
    Vol. 87, p. 66-69
    DOI: 10.1016/j.apradiso.2013.11.094
    Date of publication: 2014-05
    Journal article

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    The activitiesonair filters oftheradionuclides 40K and 137Cs weremeasuredinanaboveground laboratoryandcomparedwiththeactivitiesmeasuredinanundergroundlaboratory.Theaverage relativedifferenceswerelowerthan20%for 137Cs and 40K. Thetemporalseriesoftheseradionuclidesin the period2006¿2010arealsopresented.Theseresultsformthebaselineoftheseradionuclidesinthe studied period,andareparticularlyinterestingbecausetheycorrespondtotheradioactivebackgroundin Barcelona beforetheFukushimaaccident.

    The activitiesonair filters oftheradionuclides 40K and 137Cs weremeasuredinanaboveground laboratoryandcomparedwiththeactivitiesmeasuredinanundergroundlaboratory.Theaverage relativedifferenceswerelowerthan20%for 137Cs and 40K. Thetemporalseriesoftheseradionuclidesin the period2006–2010arealsopresented.Theseresultsformthebaselineoftheseradionuclidesinthe studied period,andareparticularlyinterestingbecausetheycorrespondtotheradioactivebackgroundin Barcelona beforetheFukushimaaccident.

  • An algorithm to assess the need for clinical Monte Carlo dose calculation for small proton therapy fields based on quantification of tissue heterogeneity

     Bueno Vizcarra, Marta; Paganetti, Harald; Duch Guillen, Maria Amor; Schuemann, Jan
    Medical physics
    Vol. 40, num. 8, p. 081704-1-081704-9
    DOI: 10.1118/1.4812682
    Date of publication: 2013
    Journal article

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    urpose: In proton therapy, complex density heterogeneities within the beam path constitute a challenge to dose calculation algorithms. This might question the reliability of dose distributions predicted by treatment planning systems based on analytical dose calculation. For cases in which substantial dose errors are expected, resorting to Monte Carlo dose calculations might be essential to ensure a successful treatment outcome and therefore the benefit is worth a presumably long computation time. The aim of this study was to define an indicator for the accuracy of dose delivery based on analytical dose calculations in treatment planning systems for small proton therapy fields to identify those patients for which Monte Carlo dose calculation is warranted...

    Purpose: In proton therapy, complex density heterogeneities within the beam path constitute a challenge to dose calculation algorithms. This might question the reliability of dose distributions predicted by treatment planning systems based on analytical dose calculation. For cases in which substantial dose errors are expected, resorting to Monte Carlo dose calculations might be essential to ensure a successful treatment outcome and therefore the benefit is worth a presumably long computation time. The aim of this study was to define an indicator for the accuracy of dose delivery based on analytical dose calculations in treatment planning systems for small proton therapy fields to identify those patients for which Monte Carlo dose calculation is warranted. Methods: Fourteen patients treated at our facility with small passively scattered proton beams (apertures diameters below 7 cm) were selected. Plans were generated in the XiO treatment planning system in combination with a pencil beam algorithm developed at the Massachusetts General Hospital and compared to Monte Carlo dose calculations. Differences in the dose to the 50% of the gross tumor volume (D50, GTV) were assessed in a field-by-field basis. A simple and fast methodology was developed to quantify the inhomogeneity of the tissue traversed by a single small proton beam using a heterogeneity index (HI)-a concept presented by Plugfelder et al. [Med. Phys. 34, 1506-1513 (2007)] for scanned proton beams. Finally, the potential correlation between the error made by the pencil beam based treatment planning algorithm for each field and the level of tissue heterogeneity traversed by the proton beam given by the HI was evaluated. Results: Discrepancies up to 5.4% were found in D50 for single fields, although dose differences were within clinical tolerance levels (<3%) when combining all of the fields involved in the treatment. The discrepancies found for each field exhibited a strong correlation to their associated HI-values (Spearman's ρ = 0.8, p < 0.0001); the higher the level of tissue inhomogeneities for a particular field, the larger the error by the analytical algorithm. With the established correlation a threshold for HI can be set by choosing a tolerance level of 2-3%-commonly accepted in radiotherapy. Conclusions: The HI is a good indicator for the accuracy of proton field delivery in terms of GTV prescription dose coverage when small fields are delivered. Each HI-value was obtained from the CT image in less than 3 min on a computer with 2 GHz CPU allowing implementation of this methodology in clinical routine. For HI-values exceeding the threshold, either a change in beam direction (if feasible) or a recalculation of the dose with Monte Carlo would be highly recommended.

  • Informe anual de la instalación radiactiva IRA 993 - Año 2012

     Duch Guillen, Maria Amor; Ginjaume Egido, Merce
    Date: 2013-02
    Report

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  • Informe anual del servicio de protección radiológica de la UPC. Año 2012

     Duch Guillen, Maria Amor; Ortega Aramburu, Miguel Javier
    Date: 2013-02
    Report

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  • Absorbed dose assessment in the presence of tissue heterogeneities in external radiotherapy  Open access

     Bueno Vizcarra, Marta
    Universitat Politècnica de Catalunya
    Theses

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    La determinación de la dosis absorbida en presencia de heterogeneidades en radioterapia externa es un asunto de gran interés y relevancia científica para la comunidad de Física Médica. Con el objetivo de obtener la distribución de dosis en el paciente en un tiempo de cálculo aceptable, los algoritmos de cálculo de dosis integrados en los sistemas de planificación de tratamiento se limitan a considerar las propiedades equivalentes al agua de cada uno de los tejidos que atraviesa la radiación, sin tener en cuenta su composición elemental¿a pesar de que los procesos de interacción de la radiación dependen fuertemente de ésta. Dicha aproximación proporciona una precisión razonable en tejidos blandos, cuyas propiedades se asemejan a las del agua. Sin embargo, la exactitud del cálculo de dosis se ve cuestionada cuando la región de tejido que se irradia difiere significativamente del agua; éste es el caso de regiones pulmonares, estructuras óseas o cavidades de aire. La verificación experimental de los algoritmos de cálculo es esencial. Las cámaras de ionización (CI) son los detectores de referencia para este propósito en la práctica clínica. Sin embargo, los factores de corrección para determinar la dosis absorbida en materiales distintos al agua no se conocen para la mayoría de los tipos de CI. Por tanto, las CI no pueden ofrecer mediciones fiables en medios heterogéneos. Los métodos Monte Carlo (MC) simulan las interacciones de la radiación considerando las propiedades específicas de cada material, por lo que ofrecen una gran precisión en el cálculo de dosis incluso en presencia de heterogeneidades. Por desgracia, precisión y velocidad son inversamente proporcionales, por lo que los tiempos de cálculo característicos de MC son, generalmente, inasequibles en la rutina clínica. Sin embargo, en aquellos casos en que los errores se prevean significativos, es decir, cuando el haz de radiación esté atravesando una región de tejido altamente heterogénea, los beneficios de recurrir a la simulación MC compensan, indudablemente, un tiempo de cálculo presumiblemente largo.En esta tesis se ha evaluado la idoneidad de dosímetros de termoluminiscencia (TLD) ultra-finos y películas radiocrómicas para determinar con precisión la dosis absorbida en presencia de heterogeneidades. Los resultados experimentales han sido validados con el cálculo MC, el cual, a su vez, ha permitido obtener una explicación física de los mismos. Se han empleado ambas técnicas dosimétricas para la verificación de un algoritmo de cálculo no-analítico publicado recientemente, Acuros XB (AXB), en maniquíes heterogéneos. Por último, se ha desarrollado un algoritmo de cálculo, llamado índice de heterogeneidad (IH), capaz de cuantificar el nivel de inhomogeneidad de la región del paciente que atraviesa el haz de radiación en un tiempo de cálculo reducido. La validez de HI para predecir fácilmente la exactitud de la distribución de dosis basada en cálculos analíticos se ha analizado a partir de la evaluación de la correlación entre HI y los errores estimados mediante el uso del cálculo MC como referencia. Los resultados muestran que un detector de 50µm de espesor proporciona mediciones fiables de la dosis absorbida en heterogeneidades de alta densidad ya que los factores de perturbación son despreciables. AXB ofrece una precisión comparable a los cálculos de dosis MC en presencia de heterogeneidades, aunque las incertidumbres en el procedimiento de asignación de materiales pueden dar lugar a alteraciones significativas en el cálculo de dosis, lo cual debe tenerse en cuenta al realizar verificaciones experimentales. Por último, IH es un buen indicador de la precisión de la dosis impartida al paciente derivada del cálculo analítico. Dado que el tiempo de cómputo de IH es reducido, puede implementarse en la rutina clínica para decidir si es preciso recurrir al cálculo de dosis MC para asegurar que las incertidumbres en la dosis se mantienen dentro de los niveles de tolerancia.

    The absorbed dose assessment in the presence of tissue heterogeneities in external radiotherapy is an issue that has concerned the medical physics community for almost three decades and it is still a matter of concern. Aiming to obtain dose distributions in clinically-acceptable computation times, analytical dose calculation algorithms integrated in treatment planning systems based their calculations on water-equivalent properties and elemental compositions of each material are disregarded despite the fact that radiation interaction processes strongly depend on them. This approximation provides reasonable accuracy in water-like tissues but the reliability of predicted dose distributions in the patient might be questioned when the radiation beam is traversing complex density heterogeneities, such as air, lung or bone. Experimental verification of dose calculation algorithms is essential and ionization chambers (IC) are the reference detectors for this purpose. However, correction factors to determine the absorbed dose in materials other than water are unknown for most IC types and therefore, they cannot procure reliable measurements in heterogeneous media. Monte Carlo (MC) simulations offer a high precision in dose calculation by tracking all particles individually taking into account the specific properties of each material. Unfortunately, accuracy and computation speed are inversely proportional and MC-based approaches generally entail long calculation times, unaffordable in the clinical routine. Nevertheless, for the cases where the expected errors in the predicted dose distributions during treatment planning are significant, i.e. when the radiation beam path is highly inhomogeneous, the benefit of resorting to MC dose calculations to achieve higher accuracy would be undoubtedly worth a presumably long computation time. In this thesis the suitability of several detectors to accurately determine the absorbed dose in the presence of high-density heterogeneities was evaluated. Ultra-thin thermoluminescent detectors (TLDs) and radiochromic films were considered as potential candidates for entailing low perturbation effects. MC dose calculations enabled to validate and understand the experimental results. Further, both dosimetric techniques were employed to thoroughly examine the behavior of a recently-released non-analytical dose calculation algorithm (AXB)¿which copes with the elemental composition of materials and thus, is claimed to yield promising results¿in heterogeneous phantoms. Finally, a fast algorithm named the heterogeneity index (HI) was developed to quantify the level of patient tissue heterogeneities traversed by the radiotherapy beam. The validity of this HI to easily predict the accuracy of dose distributions based on analytical dose calculations was analyzed by evaluating the correlation between the HI and the dose uncertainties estimated by using MC as the reference. The results show that a detector of 50µm thickness can provide reliable absorbed dose measurements in high-density heterogeneities since perturbation correction factors are unneeded. AXB was found to provide comparable accuracy to MC dose calculations in the presence of heterogeneities but uncertainties in the material assignment procedure might lead to significant changes in the dose distributions, which deserves a word of caution when carrying out experimental verifications. Finally, HI was found to be a fast and good indicator for the accuracy of dose delivery in terms of tumor dose coverage. Accordingly, HI can be implemented in the clinical routine to decide whether or not a MC dose recalculation of the plan should be considered to ensure that dose uncertainties are kept within tolerance levels. In conclusion, this thesis work tackled the main concerns on the absorbed dose calculation and measurement in the presence of tissue heterogeneities.

  • Máster en Ingeniería Nuclear por la UPC (Máster UPC-ENDESA). Confluencia de objetivos de la universidad, la empresa y la sociedad

     Batet Miracle, Lluis; Duch Guillen, Maria Amor; Calviño Tavares, Francisco; Dies Llovera, Javier; del Val, Luis; Fernández Olano, Pablo
    Reunión Anual de la Sociedad Nuclear Española
    p. 1-7
    Presentation's date: 2013-09-24
    Presentation of work at congresses

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    El Máster en Ingeniería Nuclear por la UPC pretende formar ingenieros nucleares con un nivel alto de competencias que les permitan optar a puestos de responsabilidad en empresas del sector. El Máster cuenta con el patrocinio de ENDESA y la colaboración de entidades y empresas del sector. El Máster está impartido completamente en inglés y está imbricado en EMINE, European Master in Innovation in Nuclear Energy (KIC-InnoEnergy).

    El Máster en Ingeniería Nuclear por la UPC pretende formar ingenieros nucleares con un nivel alto de competencias que les permitan optar a puestos de responsabilidad en empresas del sector. El Máster cuenta con el patrocinio de ENDESA y la colaboración de entidades y empresas del sector. El Máster está impartido completamente en inglés y está imbricado en EMINE, European Master in Innovation in Nuclear Energy (KIC-InnoEnergy).

  • Gamma summing peak correction of volume samples using the PENELOPE/ penEasy Monte Carlo code

     Vargas Drechsler, Arturo; Camp, A.; Serrano Carreño, Maria Isabel; Duch Guillen, Maria Amor
    International Conference on Radionuclide Metrology and its Applications
    Presentation's date: 2013-06
    Presentation of work at congresses

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  • Estudio sobre los niveles de actividad de radionúclidos en productos sólidos de plantas de potabilización de aguas catalanas

     Montaña, M.; Camacho Garcia, Antonia; Cespedes, R.; Devesa, Ricard; Serrano Carreño, Maria Isabel; Duch Guillen, Maria Amor; Vallés, I.
    Congreso Nacional de la Sociedad Española de Física Médica (SEFM) y Congreso Nacional Sociedad Española de Protección Radiológica (SEPR)
    Presentation's date: 2013-06
    Presentation of work at congresses

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  • Master in Nuclear Engineering in Barcelona: aligning university, utility and society objectives

     Batet Miracle, Lluis; Calviño Tavares, Francisco; Dies Llovera, Javier; Duch Guillen, Maria Amor; del Val, Luis; Fernández Olano, Pablo
    Nuclear Education and Training
    p. 411-419
    Presentation's date: 2013-11-19
    Presentation of work at congresses

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    Máster en Ingeniería Nuclear por la UPC (Máster UPC-ENDESA). Balance de la primera edición  Open access

     Batet Miracle, Lluis; Duch Guillen, Maria Amor; Calviño Tavares, Francisco; del Val, Luis; Fernández Olano, Pablo
    Reunión Anual de la Sociedad Nuclear Española
    p. 1-8
    Presentation's date: 2012-10-18
    Presentation of work at congresses

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    El Máster en Ingeniería Nuclear por la UPC, está orientado a la formación de ingenieros nucleares con un nivel alto de competencias que les permitan optar a puestos de responsabilidad en empresas del sector. El máster, que ha iniciado su andadura durante el curso 2011-2012, cuenta con el patrocinio de ENDESA y la colaboración de entidades y empresas del sector. En esta ponencia se realiza un balance de los dos primeros semestres del máster y se describen los puntos fuertes y las oportunidades de mejora detectados. En el análisis se ha tenido en cuenta el rendimiento académico de los estudiantes, sus impresiones y el grado de satisfacción. La información se ha recogido a través de encuestas, entrevistas personales y reuniones con todo el grupo de estudiantes. Los 90 créditos ECTS del Máster se reparten en asignaturas obligatorias (46,5) y optativas (13,5) y prácticas externas y Proyecto Final. La participación de expertos externos a la universidad ha sido muy alta (casi un 50 % de la docencia), especialmente en las materias de Gestión de Plantas y Normativa y Seguridad. Todas las materias incluyen actividades basadas en aprendizaje activo y trabajo en equipo: se consigue así que el sistema de evaluación sea una parte integral e inseparable del proceso de aprendizaje. En cada uno de los dos semestres lectivos, los estudiantes desarrollan un proyecto transversal en grupos de tres o cuatro miembros. En general el grado de satisfacción del alumnado es muy bueno, pero se han detectado algunos aspectos referentes a la distribución de la carga de trabajo y a los mecanismos de evaluación que han sido mejorados sobre la marcha. Estas mejoras se incorporarán en la edición de 2012-2013. Creemos que el Máster satisface las expectativas del sector y de la sociedad a la vez que presenta un gran atractivo para los estudiantes.

  • A method to assess the need for clinical Monte Carlo dose calculations for small proton therapy fields

     Bueno Vizcarra, Marta; Schuemann, Jan; Duch Guillen, Maria Amor; Paganetti, Harald
    Annual Meeting of the American Association of Physics in Medicine
    DOI: 10.1118/1.4735816
    Presentation of work at congresses

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  • Staff radiation doses in interventional cardiology

     Ginjaume Egido, Merce; Sánchez, R.; Duch Guillen, Maria Amor; Vañó, E.; Zaragoza, F.; Sempau Roma, Josep; Chiriotti, S.; Fernández, J.M.
    IAEA International Conference on Radiation Protection in Medicine
    Presentation's date: 2012-12-03
    Presentation of work at congresses

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  • Dosimetric verification of acuros XB in heterogeneities against experimental measurements and Monte Carlo methods

     Bueno Vizcarra, Marta; Duch Guillen, Maria Amor; Jurado Bruggeman, D.; Agramunt Chaler, S; Muñoz Montplet, C.
    European Society for Therapeutic Radiology and Oncology
    Presentation of work at congresses

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  • Dosimetric verification of helical tomotherapy against experimental measurements for head and neck treatments

     Lopez Vilanova, Natalia; Bueno Vizcarra, Marta; Sevillano, D.; Ginjaume Egido, Merce; Sánchez-Reyes, A; Duch Guillen, Maria Amor; Minguez, C.
    Annual Meeting and Exhibition of the American Association of Physicists in Medicine
    p. 3770
    Presentation's date: 2012
    Presentation of work at congresses

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  • Visión de un auditor técnico

     Vargas Drechsler, Arturo; Duch Guillen, Maria Amor; Valles Murciano, Maria Isabel; Camacho Garcia, Antonia; Serrano Carreño, Maria Isabel; Blazquez Perez, Sonia Margarita
    Jornadas sobre Calidad en el Control de la Radiactividad Ambiental
    Presentation's date: 2012-05-30
    Presentation of work at congresses

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    Monte Carlo simulation of the total dose distribution around the 12 MeV UPC race-track microtron and radiation shielding calculations  Open access

     De la Fuente, Cristina; Duch Guillen, Maria Amor; Koubychine Merkulov, Youri Alexandrovich; Shvedunov, V.I.
    International Particle Accelerator Conference
    p. 2370-2372
    Presentation of work at congresses

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    The Technical University of Catalonia is building a miniature 12 MeV electron race-track microtron for medical applications. In the paper we study the leakage radiation caused by beam losses inside the accelerator head, as well as the bremsstrahlung radiation produced by the primary beam in the commissioning setting. Results of Monte Carlo simulations using the PENELOPE code are presented and two shielding schemes, global and local, are studied. The obtained shielding parameters are compared with estimates based on DIN 6847 part 2 as international recommendation of the radiation safety standards.

  • The use of different types of thermoluminescent dosimeters to measure extremity doses in nuclear medicine

     Carnicer, A; Ginjaume Egido, Merce; Duch Guillen, Maria Amor; Vanhavere, F.; Sans-Merce, M.; Baechler, S.; Barth, I.; Donadille, L.; Ferrari, Paolo; Fulop, M.; Gualdrini, G.; Krim, S.; Mariotti, M.; Ortega, Xavier; Rimpler, A.; Ruiz, Nilbia; Olko, P.
    Radiation measurements
    Vol. 46, num. 12, p. 1835-1838
    DOI: 10.1016/j.radmeas.2011.06.047
    Date of publication: 2011-12
    Journal article

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  • Performance of several active personal dosemeters in interventional radiology and cardiology

     Chiriotti, S.; Ginjaume Egido, Merce; Vano, E.; Sanchez, R.; Fernandez, J.M.; Duch Guillen, Maria Amor; Sempau Roma, Josep
    Radiation measurements
    Vol. 46, num. 11, p. 1266-1270
    DOI: 10.1016/j.radmeas.2011.05.073
    Date of publication: 2011-11
    Journal article

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  • Máster en Ingeniería Nuclear por la UPC (Máster UPC-ENDESA)

     Batet Miracle, Lluis; Duch Guillen, Maria Amor; Calviño Tavares, Francisco; del Val, Luis; Fernández Olano, Pablo
    Sociedad Nuclear Española. Reunión
    p. 1-6
    Presentation's date: 2011
    Presentation of work at congresses

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  • New Master in Nuclear Engineering in Barcelona: a sinergetic effort of University and utility

     Batet Miracle, Lluis; Calviño Tavares, Francisco; Duch Guillen, Maria Amor; Consul Porras, M. Nieves; Oriol, Carlos; del Val, Luis; Fernández Olano, Pablo
    Nuclear Education and Training
    p. 227-231
    Presentation's date: 2011-05-17
    Presentation of work at congresses

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  • Equipo de lectura de dosímetros termoluminiscentes

     Ginjaume Egido, Merce; Duch Guillen, Maria Amor
    Competitive project

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  • Módulo docente sobre Optimización de la protección radiológica del personal sanitario del campo de la medicina nuclear

     Duch Guillen, Maria Amor; Ortega Aramburu, Miguel Javier; Ginjaume Egido, Merce
    Competitive project

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  • Seminari internacional sobre optimització de la protecció radiológica del personal sanitari ORAMED 2011

     Duch Guillen, Maria Amor; Ortega Aramburu, Miguel Javier; Ginjaume Egido, Merce
    Competitive project

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  • 2009 SGR 276 - GRUP DE RECERCA CONSOLIDAT DOSIMETRIA I RADIOFÍSICA MÈDICA / 2010

     Vargas Drechsler, Arturo; Ortega Aramburu, Miguel Javier; Ginjaume Egido, Merce; Duch Guillen, Maria Amor; Sempau Roma, Josep
    Competitive project

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  • CARACTERIZACIÓN DE LOS CAMPOS DE RADIACIÓN EN RADIOLOGÍA INTERVENCIONISTA. OPTIMIZACIÓN DE LA DOSIMETRIA INDIVIDUAL.

     Duch Guillen, Maria Amor; Sempau Roma, Josep; Ginjaume Egido, Merce
    Competitive project

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  • Adaptación de penEasy/PENELOPE para el uso de la base de datos del OIEA sobre espacios de fase de aceleradores lineales y uniddes de cobaltoterapìa

     Duch Guillen, Maria Amor; Sempau Roma, Josep
    Revista de física médica
    Vol. 9, num. 3, p. 133-136
    Date of publication: 2008-12
    Journal article

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  • Applied radiation and isotopes

     Duch Guillen, Maria Amor
    Collaboration in journals

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  • Dose assessment at a phosphate industry landfill using solid state detectors

     Ortega Aramburu, Miguel Javier; Duch Guillen, Maria Amor; Vargas Drechsler, Arturo; Lopez, N
    Radiation measurements
    Vol. 43, num. 2-6, p. 664-667
    Date of publication: 2008-06
    Journal article

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  • Long-term intercomparison of Spanish environmental dosimetry services. Study of transit dose estimations

     Duch Guillen, Maria Amor; Saez-Vergara, Carlos J; Ginjaume Egido, Merce; Gomez, C; Gonzalez-Leiton, Maria A; Herrero, J; Lucas, Jose De M; RODRIGUEZ, R; Marugan, I
    Radiation measurements
    Vol. 43, num. 2-6, p. 576-579
    Date of publication: 2008-02
    Journal article

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  • Comparison of TLD-100 and MCP-Ns for use as an extremity dosemeter for PET nuclear medicine staff

     Ginjaume Egido, Merce; Pérez, S; Duch Guillen, Maria Amor; Ortega Aramburu, Miguel Javier
    Radiation measurements
    Vol. 43, num. 2-6, p. 607-610
    Date of publication: 2008-01
    Journal article

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  • Absolute Dose verification of different IMRT treatment using TLD dosimeters

     Lopez, N; Sánchez-Reyes, A Vila A; Duch Guillen, Maria Amor; Rodoriguez, A; Loscos, S; Ginjaume Egido, Merce; Pedro, A
    Radiotherapy and oncology
    Vol. 88, num. supl.2, p. 1190
    Date of publication: 2008-09
    Journal article

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  • Determination of peripheral from dynamic MLC IMRT for 6 MV and 18 MV beam energies

     Sánchez-Reyes, A; López, N; Vila, A; Duch Guillen, Maria Amor; Rodríguez, A; Loscos, S; Moya, Lm; Ginjaume Egido, Merce
    Radiotherapy and oncology
    Vol. 88, num. supl.2, p. 1338
    Date of publication: 2008-09
    Journal article

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  • SBRT of lung tumours: Monte Carlo simulation with PENELOPE of dose distribution including breathing motion and comparison with different planning systems

     Panettieri, Vanessa; Wennberg, B; Gagliardi, G; Duch Guillen, Maria Amor; Ginjaume Egido, Merce; Lax, I
    8th Bi-Annual Congress and Exhibition of the Stereotactic Radiosurgery Society - SRS 2007
    p. 5-8
    Presentation of work at congresses

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  • Caracterización radiológica de un depósito de residuos industriales en Flix (Tarragona)

     Ortega Aramburu, Miguel Javier; Duch Guillen, Maria Amor; Valles Murciano, Maria Isabel; Vargas Drechsler, Arturo; López, N
    REUNIÓN DE LA SOCIEDAD ESPAÑOLA DE PROTECCIÓN RADIOLÓGICA Septiembre 2007
    p. 1-3
    Presentation of work at congresses

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  • Ntural radioactivity components in solid wate produced by the manufacture of phosphatic.

     Duch Guillen, Maria Amor
    V International Symposium on Naturally Ocurring radioactive materiales (NORM V).
    Presentation's date: 2007-03-19
    Presentation of work at congresses

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  • Comparison of TLD-100 and MCP-Ns as extremity dosemeter for PET nuclear medicine Staff

     Ginjaume Egido, Merce; Pérez, S; Duch Guillen, Maria Amor; Ortega Aramburu, Miguel Javier
    15 th Internatiopnal Conference on Solid Sate Dosimetry
    p. 224
    Presentation of work at congresses

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  • Natural Radioactivity components in solid waste produced by the manufactured of phosphatic

     Valles Murciano, Maria Isabel; Ortega Aramburu, Miguel Javier; Serrano Carreño, Maria Isabel; Camacho Garcia, Antonia; Duch Guillen, Maria Amor
    V International Symposium on Naturally Ocurring radioactive materiales (NORM V).
    p. 130-132
    Presentation of work at congresses

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  • Application of solid state detectors for short-term characterisation of a posphate industry landfill

     Ortega Aramburu, Miguel Javier; Duch Guillen, Maria Amor; Vargas Drechsler, Arturo; López, N
    15 th Internatiopnal Conference on Solid Sate Dosimetry
    p. 240
    Presentation of work at congresses

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  • Simulación MonteCarlo de tratamientos con radioterapia estereotáxica extracraneal de tumores de pulmón

     Panettiere, V- Wennber B; Gagliardi, G; Duch Guillen, Maria Amor; Ginjaume Egido, Merce; Lax, I
    XVI Congreso Nacional de Física Médica
    p. 308-314
    Presentation of work at congresses

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  • Long-Term intercomparison of Spanish environmental dosimetry services. Study of transit dose estimations

     Duch Guillen, Maria Amor; Sáez-Vergara, J C; Ginjaume Egido, Merce; Gómez, C; González-Leitón, A M; Herrero, J; Lucas, M J; Rodríguez, R L; Marugán, I; Salas, R
    15 th Internatiopnal Conference on Solid Sate Dosimetry
    p. 32
    Presentation of work at congresses

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  • Caracterización radiológica de un depósito de residuos industriales en Flix (Tarragona). Evaluación de la dosis recibida por los trabajadores

     Ortega Aramburu, Miguel Javier; Duch Guillen, Maria Amor; Valles Murciano, Maria Isabel; Vargas Drechsler, Arturo; López, N
    Radioprotección: revista de la Sociedad Española de Protección Radiológica
    Vol. XIV, num. 53, p. 328-331
    Date of publication: 2007-09
    Journal article

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  • On the comparison of dose distributions for high-energy x-ray beams in water phantoms with bone-equivalent heterogeneities

     Fez, De P C; Fernandez-Varea, Jose Maria; Jornet, N; Duch Guillen, Maria Amor; Panettieri, V; Brualla, L; Eudaldo, T; Sempau Roma, Josep; Ginjaume Egido, Merce; RIBAS, M
    Radiotherapy and oncology
    Vol. 84, p. 49-50
    Date of publication: 2007-09
    Journal article

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  • Monte Carlo simulation of MOSFET detectors for high-energy photon beams using the PENELOPE code

     Panettieri, Vanessa; Duch Guillen, Maria Amor; Jornet, N; Ginjaume Egido, Merce; Carrasco, P; Badal, A; Ortega Aramburu, Miguel Javier; RIBAS, M
    Physics in medicine and biology
    Vol. 52, num. 1, p. 303-316
    Date of publication: 2007-01
    Journal article

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  • Comparison of dose calculation algorithms in slab phantoms with cortical bone equivalent heterogeneities

     Carrasco, P; Jornet, N; Duch Guillen, Maria Amor; Panettieri, V; Weber, L; Eudaldo, T; Ginjaume Egido, Merce; RIBAS, M
    Medical physics
    Vol. 34, num. 8, p. 3323-3333
    Date of publication: 2007-08
    Journal article

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  • SBRT of lung tumours: Monte Carlo simulation with PENELOPE of dose distributions including respiratory motion and comparison with different treatment planning systems

     Panettieri, Vanessa; Wennberg, B; Gagliardi, G; Duch Guillen, Maria Amor; Ginjaume Egido, Merce; Lax, I
    Physics in medicine and biology
    Vol. 52, num. 14, p. 4265-4281
    Date of publication: 2007-07
    Journal article

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  • Simulación Monte Carlo de tratamientos con radioterapia estereotáxica extracraneal de tumores de pulmón

     Panettieri, Vanessa; Wennber, Berit G; Gagliardi, G; Duch Guillen, Maria Amor; Ginjaume Egido, Merce; Lax, I
    Revista de física médica
    Vol. 8, num. 1, p. 185-186
    Date of publication: 2007-05
    Journal article

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