| Literature DB >> 11131205 |
C Ongaro1, A Zanini, U Nastasi, J Ródenas, G Ottaviano, C Manfredotti, K W Burn.
Abstract
A complete method is presented for the evaluation of photoneutron spectra produced in linear accelerators for cancer radiotherapy. It consists of a computer simulation code based on the MCNP4B Monte Carlo code, in which the new routine GAMMAN was implemented, allowing the accurate study of photoneutron production in high Z elements. In addition an experimental method based on a passive bubble spectrometer allows direct measurements of the photoneutron spectrum at the patient plane, also under the photon beam. The results are presented both for a 15 MeV linac with a traditional collimator system and for an 18 MeV linac equipped with a multileaf collimator, used in conformational radiotherapy.Entities:
Mesh:
Year: 2000 PMID: 11131205 DOI: 10.1088/0031-9155/45/12/101
Source DB: PubMed Journal: Phys Med Biol ISSN: 0031-9155 Impact factor: 3.609