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Therapy Physics Committee (TPC)

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The Therapy Physics Committee (TPC) is a committee of the Science Council and has direct authority and responsibility over all AAPM scientific activities pertaining to radiation therapy physics. The Therapy Physics Committee will achieve the following broad goals primarily through its Subcommittees, Working Groups and Task Groups.

  1. Improve the accuracy and consistency of radiation therapy and other medical interventions through development and publication of scientific, technical and educational documents.
  2. Improve therapeutic medical interventions through research in medical physics and promote scientific research in therapy applications of medical physics within AAPM.
  3. Provide guidance to outside agencies and organizations relative to the scientific and clinical interests of AAPM membership.
  4. Remain aware of developments from and collaborate with outside organizations.

By-Laws:Not Referenced.Rules: 3.10.1
Approved Date(s):n/a
Committee Keywords: TPC

Sonja Dieterich
Committee Chair

2022 Roster

(dates shown below are start and end dates of position.)

=complete and up-to-date, =incomplete conflict of interest statement.
VOTING AppointmentsThere are 25 voting members.

up-to-dateCharles D. Bloch, PhD

1/29/2021 - 12/31/2023 Member

up-to-dateMaria F. Chan, PhD

1/1/2021 - 12/31/2023 Member

up-to-dateQuan Chen, PhD

1/1/2020 - 12/31/2022 Member

up-to-dateElizabeth L. Covington, PhD

2/22/2021 - 12/31/2022 Chair,  Task Group No. 263U1 - Update to Report No. 263 - Standardizing Nomenclatures (ex officio)

up-to-dateSonja Dieterich, PhD

1/1/2021 - 12/31/2023 Committee Chair

up-to-dateSean A. Dresser, MS

1/1/2020 - 12/31/2022 Member

up-to-dateSebastien A. Gros, PhD

10/30/2020 - 12/31/2023 Vice Chair,  Radiological Protection Subcommittee (ex officio)

up-to-dateRobert F. Hobbs, PhD

6/5/2020 - 12/31/2022 Member
2/25/2021 - 12/31/2024 Chair,  Radiopharmaceutical Therapy Subcommittee (ex officio)

up-to-dateGeoffrey D. Hugo, PhD

1/1/2018 - 12/31/2023 Chair,  Therapy Imaging Subcommittee (ex officio)

up-to-dateAndrew Jackson, PhD

1/1/2017 - 12/31/2022 Chair,  Biological Effects Subcommittee (ex officio)

up-to-dateRobert Jeraj, PhD

1/1/2016 - 12/31/2022 Liaison - Research Committee

up-to-datePerry B. Johnson, PhD

1/1/2021 - 12/31/2023 Member

up-to-dateGrace Gwe-Ya Kim, PhD

1/1/2019 - 12/31/2024 Member

up-to-dateSiyong Kim, PhD

1/1/2019 - 12/31/2024 Chair,  Treatment Delivery Subcommittee (ex officio)

up-to-dateStephen F. Kry, PhD

1/1/2021 - 12/31/2023 Liaison - The Imaging and Radiation Oncology Core (IROC) Group (ex officio)

up-to-dateKatja M. Langen, PhD

1/1/2018 - 12/31/2023 Member

up-to-dateCharles S. Mayo, PhD

1/1/2020 - 12/31/2022 Chair,  SC263 - Standardized Categorizations and Nomenclatures Supporting Clinical and (ex officio)

up-to-dateDimitris N. Mihailidis, PhD

1/1/2021 - 12/31/2023 Committee Vice Chair

up-to-dateKevin L. Moore

1/1/2021 - 12/31/2023 Chair,  Quality Assurance and Outcome Improvement Subcommittee (ex officio)

up-to-dateFiras Mourtada, PhD

1/1/2019 - 12/31/2024 Member

up-to-dateZoubir Ouhib, MS

1/1/2018 - 12/31/2023 Chair,  Brachytherapy Subcommittee (ex officio)

up-to-dateMarija Popovic, PhD

1/1/2021 - 12/31/2023 Member

up-to-dateLeah K. Schubert, PhD

1/1/2020 - 12/31/2022 Member

up-to-dateJeffrey V. Siebers, PhD

1/1/2022 - 12/31/2024 Chair,  Calibration Laboratory Accreditation Subcommittee (ex officio)

up-to-dateYevgeniy Vinogradskiy, PhD

1/1/2020 - 12/31/2022 Chair,  Radiation Dosimetry & Treatment Planning Subcommittee (ex officio)
NON-VOTING AppointmentsThere are 8 non-voting members and guests.

up-to-dateMaryann O. Ayoade, MS

1/1/2015 - 12/31/2022 Liaison - NRC Representative (nonvoting)

up-to-dateMagdalena Bazalova-Carter, PhD

9/14/2021 - 12/31/2024 Liaison to - Imaging Physics Committee (ex officio, nonvoting)

up-to-dateAlan B. Cohen, MS

1/1/2017 - 12/31/2022 Liaison - IEC (ex officio, nonvoting)

up-to-dateMichael G. Mitch, PhD

3/2/2010 - 12/31/2022 Liaison - National Institute of Standards & Technology (ex officio, nonvoting)

up-to-dateCeferino Obcemea, PhD

1/1/2021 - 12/31/2023 Liaison - NCI (ex officio, nonvoting)

up-to-dateVikren Sarkar, PhD

1/1/2021 - 12/31/2023 Guest (nonvoting)

up-to-dateDeborah G. van der Merwe, PhD

3/26/2018 - 12/31/2022 Consultant - IAEA Liaison (ex officio, nonvoting)

up-to-dateYing Xiao, PhD

7/3/2014 - 12/31/2022 Liaison - NRG (ex officio, nonvoting)
HQ Team Appointed to CommitteeThere are 1 staff.

up-to-dateJill Moton, MBA

5/24/2019 - 12/31/2037 Programs Manager (ex officio, nonvoting)

Individual Appointments
the individuals listed below report to, but are not necessarily members of, this committee as individual appointments
Rivard, Mark J.  - [conflict of interest information]       [Individual appointment reports summary]
     1/1/2008-12/31/2022 Brachytherapy Physics Representative, European Society for Therapeutic Radiology and Oncology
Pawlicki, Todd  - [conflict of interest information]       [Individual appointment reports summary]
     6/19/2015-12/31/2022 Radiation Oncology Safety Committee, European Society for Therapeutic Radiology and Oncology
Ibbott, Geoffrey S.  - [conflict of interest information]       [Individual appointment reports summary]
     1/1/2005-12/31/2022 Delegate to IEC 62 C (USNC), International Electrotechnical Commission
Kim, Grace Gwe-Ya  - [conflict of interest information]       [Individual appointment reports summary]
     11/16/2020-12/31/2022 Representative- Therapy, Imaging and Radiation Oncology Core

See connections to Therapy Physics Committee