title: Photoneutron spectrum measured with a Bonner sphere spectrometer in planetary method mode.
abstract: The spectrum of photoneutrons produced by a 15 MV VARIAN iX linac working in Bremsstrahlung mode was measured a 100 cm from the IC located 5 cm-depth of a solid water phantom. The spectrum was measured with a Bonner spheres spectrometer with pairs of TLDs as thermal neutron detector. The measurements were carried out using the spectrometer in planetary method mode where a single shoot of the LINAC was required.
authors.affiliation: Servicio Seguridad Radiologica, Centro de Cancerologia de Nayarit, Calzada de la Cruz 118 Sur, C.P. 63000, Tepic, Nayarit, Mexico; Posgrado en CBAP, Universidad Autonoma de Nayarit, Carretera Tepic-Compostela km9, C.P. 63780 Xalisco-Nayatit, Mexico. Electronic address: jlbenitesr@prodigy.net.mx.
authors.forename: Jorge Luis
authors.initials: JL
authors.lastname: Benites-Rengifo
authors.forename: Hector Rene
authors.initials: HR
authors.lastname: Vega-Carrillo
authors.forename: Jesus
authors.initials: J
authors.lastname: Velazquez-Fernandez
keywords: Bonner sphere spectrometer; Linac; Monte Carlo; Neutron spectrum; Photoneutrons