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

Publiceringsår: 2003
Språk: Engelska
Sidor: 3345-3352
Publikation/Tidskrift/Serie: Physics in Medicine and Biology
Volym: 48
Nummer: 20
Dokumenttyp: Artikel
Förlag: IOP Publishing LTD


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 W-nat, using tagged photons at the MAX-Lab photonuclear facility in Sweden. This work presents neutron yields for W-nat(gamma, n) and compares these with the predictions of the Monte Carlo code MCNP-GN, developed specifically to simulate photoneutron production at medical accelerators.



  • Radiology, Nuclear Medicine and Medical Imaging


  • ISSN: 0031-9155

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