Photoneutron yields from tungsten in the energy range of the giant dipole resonance

2 October 2003

journal article
research article
Published by IOP Publishing in Physics in Medicine & Biology

Vol. 48 (20) , 3345-3352
https://doi.org/10.1088/0031-9155/48/20/006

Abstract

Photoneutron production on the nuclei of high-Z components of medical accelerator heads can lead to a significant secondary dose during a course of bremsstrahlung radiotherapy, However, a quantitative evaluation of secondary neutron dose requires improved data on the photoreaction yields. These have been measured as a function of photon energy, neutron energy and neutron angle for ^natW, using tagged photons at the MAX-Lab photonuclear facility in Sweden. This work presents neutron yields for ^natW(γ, n) and compares these with the predictions of the Monte Carlo code MCNP-GN, developed specifically to simulate photoneutron production at medical accelerators.

Keywords

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