Neutron spectra inside an adult and children anthropomorphic phantoms in high energy radiotherapy

摘要：

　　This work presents the results of the Monte Carlo simulation of the neutron fluence energy spectra at 16 representative points inside three anthropomorphic phantoms mimicking an adult and two children.Simulations were carried out using the MCNPX-2.6.0 code,and the calculation of the neutron spectra for each beam incidence was made in a single simulation file,including the treatment room,each phantom and the linac.Results show that pediatric patients are exposed to higher neutron fluence than adults.Consequences in terms of an increased secondary cancer risk should be analysed.

关键词： Monte Carlo simulation photoneutron contamination neutron spectra secondary cancer

作者: X. Gónzalez-Soto M. R. Expósito B. Sánchez-Nieto K. Amgarou J. I. Lagares F. Gómez C.Domingo F. Sánchez-Doblado

作者单位: Dpto. Física de Partículas, Univ. de Santiago de Compostela, Spain Dpto. Fisiología Médica y Biofísica, Univ. de Sevilla, Spain Dpto. de Física, Pontificia Univ. Católica de Chile, Santiago, Chile Dpto. de Física, Univ. Aut. de Barcelona, Bellaterra, Spain Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas(CIEMAT), Madrid, Spain Dpto. de Física, Pontificia Univ. Católica de Chile, Santiago, Chile;Hospital Univ. Virgen Macarena,

会议类型: 国际会议

会议名称: World Congress on Medical Physics and Biomedical Engineering (2012年医学物理及生物医学工程国际会议(IFMBE))

会议地点: 北京

会议语种:英文

页码: 1145-1148

在线出版日期: 2012-05-26（万方平台首次上网日期，不代表论文的发表时间）