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Dosimetry & QA Focus Group

We are an interdisciplinary group of experts specialising in Commissioning, QA and Dosimetry.

We serve as a think-tank in Commissioning, QA and Dosimetry. As we work to identify and address the needs of our community interested in Commissioning, QA and Dosimetry, we support ESTRO Councils and Committees in their activities.
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From reference dosimetry (basic dosimetrical quantities and principles, microdosimetry, uncertainties) to relative dosimetry and commissioning of the delivery machines including detectors and phantoms, small field dosimetry, MLC modelling, geometrical and imaging QA as well as TPS beam modelling, Patient Specific QA, independent verification and auditing. It will include the standard (photons, electrons) beams and light ions (RBE, LET) as well as different delivery techniques (IMRT/VMAT, SBRT/SRS, MERT, FLASH, SFRT, etc.).

RT equipment commissioning and QA, dosimetry, PSQA, verification, audits

Chair:

Eduard Gershkevitsh, Medical Physicist, North Estonia Medical Centre (EE)

Core Experts:

Mania Aspradakis, Medical Physicist, Kantonsspital Winterthur (CH)

Hugo Palmans, Medical Physicist, MedAustron Ion Therapy Center (AT) and National Physical Laboratory (UK)

Simeon Nill, Medical Physicist, The Royal Marsden NHS Foundation Trust (UK)

Full Members:

Núria Jornet, Medical Physicist, Sant Pau Hospital (ES)

Armin Lühr, Medical Physicist, TU Dortmund University (DE)

Oliver Jäkel, Medical Physicist, German Cancer Research Center (DE)

Sara Hackett , Medical Physicist, University Medical Center Utrecht  (NL)

Liliana Stolarczyk, Medical Physicist, Danish Centre for Particle Therapy  (DK)

Jacob Johansen, Physicist, Aarhus University (DK)

Weronika Jackowiak, RTT, Greater Poland Cancer Centre (PL)

Jordi Saez, Medical Physicist, Hospital Clinic de Barcelona (ES)

Sonja Wegener, Medical Physicist, University Hospital Wurzburg (DE)

Stéphane Dufreneix, Medical Physicist, Institut de Cancérologie de l'Ouest (FR)

Tiago Ventura, Medical Physicist, Portuguese Oncology Institute of Coimbra (PT)

Marion Essers, Medical Physicist, Institute Verbeeten  (NL)

Year 1 (2024)

  • Position paper on patient specific QA
  • Develop practical dosimetry course (detectors, phantoms, reference
  • Web based dosimetry and QA “Wikipedia”
  • Dosimetry audit

Year 2 (2025)

  • OPEN Machine interfaces – Plea to big tech companies (QA)
  • Measurement PSQA and complexity metrics recommendation
  • Recommendation on Dw / Dm for TPS dose reporting 
  • Webinars – ad-hoc dosimetry interest webinars (Dw/Dm)

Year 3 (2026)

  • Workshop on PSQA
  • Recommendation on IGRT dose optimisation
  • Webinars – ad-hoc dosimetry interest webinars (PSQA)