Evaluation of the two‐voltage method for parallel‐plate ionization chambers irradiated with pulsed beams
The numerical simulation shows a better agreement with the experimental data than the current analytical theories in terms of CCE. The classical TVM, systematically overestimates the saturation factor, with differences increasing with dose per pulse but also present at low dose per pulse. These results may have implications for the dosimetry with ionization chambers in therapy modalities that use a dose per pulse higher than conventional radiotherapy such as intraoperative radiotherapy but also in conventional dose per pulse for ionization chambers that suffer from significant charge recombination.
Authors
- Andreas Schüller (ORCID: https://orcid.org/0000-0002-0355-299X)
- Juan Pardo‐Montero (ORCID: https://orcid.org/0000-0001-7990-3971)
- Alexandra Bourgouin (ORCID: https://orcid.org/0000-0001-6429-4122)
- F. Gómez (ORCID: https://orcid.org/0000-0002-6147-8425)
- Nicolás Gómez‐Fernández
- Araceli Gago‐Arias (ORCID: https://orcid.org/0000-0002-1999-2340)
- José Paz‐Martín (ORCID: https://orcid.org/0000-0001-9685-9204)
- Diego M. González‐Castaño (ORCID: https://orcid.org/0000-0001-5121-834X)
Institutions
- Physikalisch-Technische Bundesanstalt (DE)
- Universidade de Santiago de Compostela (ES)
- Complejo Hospitalario Universitario de Santiago (ES)
- Complexo Hospitalario Universitario A Coruña (ES)
- Instituto de Investigación Sanitaria de Santiago (ES)
- National Research Council Canada (CA)
Publication Details
- Journal
- Medical Physics
- Published
- 2025-04-11
- DOI
- https://doi.org/10.1002/mp.17814
- Citations
- 1
- Primary Topic
- Advanced Radiotherapy Techniques
- Type
- article
- Field-Weighted Citation Impact
- 1.88
Funders
- “la Caixa” Foundation
- Xunta de Galicia
- Agencia Estatal de Investigación
- European Metrology Programme for Innovation and Research