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The Impact of Treatment Parameter Variation on Secondary Neutron Spectra in High-energy Electron Beam Radiotherapy by Felix Mathew; Georges Al Makdessi; Logan Montgomery; Michael Evans; John Kildea is a Medicine article available to read on EtoBox.

What is The Impact of Treatment Parameter Variation on Secondary Neutron Spectra in High-energy Electron Beam Radiotherapy about?

High-energy electron treatment procedures in radiotherapy pose a potential iatrogenic cancer risk as well as a critical health risk to patients with cardiac implantable electronic devices due to the generation of secondary neutrons in the linac head, the treatment room, and the patient. It may be argued that the neutron production from photons is well characterized, but the same is not true for electrons. Therefore, to assess the risk involved in an electron treatment, one must determine the neutron flux spectrum generated by the treatment procedure. The neutron spectrum depends on the treatment parameters used and therefore it is crucial to study its dependence on these parameters. In this work, eight experiments were devised to analyze how eight electron treatment parameters impacted the neutron spectrum. The parameters we considered were the electron beam energy, location of measurement, cutout size, collimator size, applicator size, collimator angle, choice of treatment room, and the presence or absence of a solid water phantom. For each experiment, we used a Nested Neutron SpectrometerTM (NNS) to measure the neutron flux spectra for multiple settings of the treatment parameter

Who reads The Impact of Treatment Parameter Variation on Secondary Neutron Spectra in High-energy Electron Beam Radiotherapy?

Author

Felix Mathew; Georges Al Makdessi; Logan Montgomery; Michael Evans; John Kildea

Publisher

Elsevier ; Istituti Editoriali e Poligrafici Internazionali; Elsevier BV (ISSN 1120-1797)

Published

2020

Language

EN

Field

Medicine (Health Sciences)