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Task Group No. 256 Proton Relative Biological Effectiveness (RBE)

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1. Assess whether the current practice of a constant clinical RBE should be revised or maintained. 2. Assess the potential and clinical consequences of delivering RBE weighted doses based on variable LET distributions and as a function of dose and biological endpoints and assess the potential for harm and benefits associated with the clinical implementation of alternate (non-constant) RBE and dose-weighted LET models into treatment planning systems in terms of treatment margins and other metrics. 3. Recommend experiments needed to improve our current understanding of the relationships among in vitro, in vivo and clinical RBE and develop recommendations to minimize the effects of uncertainties associated with proton RBE for well defined tumor types and critical structures. 4. Review biophysical models to potentially predict RBE in a treatment planning environment and provide LET and RBE relationships from such models.

Bylaws:Not Referenced.Rules: Not Referenced.
Approved Date(s)Start: 12/1/2013
End: 12/31/2016
Committee Keywords: TG256
Most recent status update:The TG report is final in its first draft. Refinements and circulation among all TG members is next. - [11/5/2015 by Harald Paganetti] Click to update.
Chair

Harald Paganetti
Task Group Chair


2016 Roster

(dates shown below are beginning date of position) View 2017 Roster

There are 14 members and guests.
=complete and up-to-date, =complete, out-of-date, =incomplete conflict of interest statement.
VOTING Appointments
Alejandro Carabe-Fernandez, PhD

12/1/2013  Member
no coi on file
David J. Carlson, PhD

12/1/2013  Member
up-to-date
Indra J. Das, PhD

12/1/2013  Member
no coi on file
Lei . Dong, PhD

12/1/2013  Member
out-of-date
Radhe Mohan, PhD

12/1/2013  Member
out-of-date
Vitali Moiseenko, PhD

12/1/2013  Member
up-to-date
Andrzej Niemierko, PhD

12/10/2013  Member
up-to-date
Harald . Paganetti, PhD

12/1/2013  Task Group Chair
out-of-date
Robert D. Stewart, PhD

12/1/2013  Member
up-to-date
NON-VOTING Appointments
Eleanor Blakely

12/10/2013  Consultant (nonvoting)
up-to-date
David Grosshans

12/10/2013  Consultant (nonvoting)
up-to-date
Kathy Held

12/10/2013  Consultant (nonvoting)
out-of-date
Michael C. Joiner, PhD

10/3/2014  Member (nonvoting)
up-to-date
Henning Willers, M.D.

12/10/2013  Consultant (nonvoting)
up-to-date

STAFF Appointed to Committee

None Appointed