Memorias de investigación
Ponencias en congresos:
Monte Carlo evaluation of extended range REM meter WENDI-II for its application in shielding and radiation area monitoring inside a compact Proton therapy center
Año:2018
Áreas de investigación
  • Fuentes de radiacion y detectores
Datos
Descripción
Protontherapy involve accelerated proton beams of 10 nA, with energies between 70 and 230 MeV, to irradiate cancer tumors with an average dose rate of 2 Gy·min-1. According to energy deposition plot (Bragg curve), protons offers important advantages in several types of cancer compared to other kind of radiation (X-rays, gamma rays or electron beams). Using protons the amount of radiation deposited in the target volume is maximum while healthy tissues and critical organs surrounding the tumor receive fewer doses, thus reducing the risk of developing secondary cancer years after the treatment ends. More than 50 Compact Proton Therapy Centers (CPTC) are currently under planning and construction around the world inside medical facilities and hospitals. A modern CPTC has dimensions of 30.4 x 12.8 m2 (like a tennis court, approximately); its three key components are a proton accelerator (superconducting synchronous cyclotron), the beam transport and energy selection system (ESS), and finally the Compact Gantry Treatment Room (CGTR). Nevertheless, interactions of protons with components of the facility and the tissues of the patient yield a broad emission of secondary particles, mainly high-energy neutrons (up to 230 MeV) and photons. Therefore, design and calculation of the optimal shielding in CPTC requires a series of theoretical simulations in the design phase, and experimental verifications through measurements in field when the installation is in operation. The final goal of the complete project is to develop a methodology for both the analysis of the effectiveness of the shielding and to evaluate the equivalent ambient dose H*(10) in CPTC. In this paper the evaluation of an extended range neutron rem meter, WENDI-II, for its application in shielding and radiation area monitoring inside those facilities is analyzed by using the Monte Carlo code MCNPX.
Internacional
Si
Nombre congreso
XVIII INTERNATIONAL SYMPOSIUM ON SOLID STATE DOSIMETRY (ISSSD 2018)
Tipo de participación
970
Lugar del congreso
Oaxaca, México
Revisores
Si
ISBN o ISSN
CDP08UPM
DOI
Fecha inicio congreso
24/09/2018
Fecha fin congreso
28/09/2018
Desde la página
1
Hasta la página
27
Título de las actas
XVIII INTERNATIONAL SYMPOSIUM ON SOLID STATE DOSIMETRY (ISSSD 2018). Proceedings (vol.3) http://smid.org.mx/eng.htm
Esta actividad pertenece a memorias de investigación
Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Ciencia y Tecnología de sistemas avanzados de fisión nuclear
  • Departamento: Ingeniería Energética