Particle Therapy Co-Operative Group

An organisation for those interested in proton, light ion and heavy charged particle radiotherapy

PTCOG Executive Committee

The PTCOG Executive Committee was authorized at the PTCOG 54 Steering Committee Meeting according to the PTCOG Statutes, Art.15 and Art.16. It acts for all authorized governance and operational matters of the PTCOG Society and reports to the PTCOG Steering Committee.

The PTCOG Executive Committee consists since July 2022 of the following members:

Marco Durante


Marco Durante (PTCOG Chairman)



Anita Mahajan (PTCOG Vice-Chairman)

 Hsiao Ming Lu


Hsiao-Ming Lu (PTCOG Vice-Chairman)



Jay Flanz (Past PTCOG Chairman)



Martin Jermann (PTCOG Secretary and Treasurer)

GayarHeshameHakan Nystroem


Hesham Gayar (Co-Chairman of Education Subcommittee, Clinics)



Hakan Nystroem (Co-Chairman of Education Subcommittee, Physics & Technology)

Prof Dr Weber Damien

Nancy Mendenhall


Damien Weber (Chairman of Publication Subcommittee)



Nancy Mendenhall (Co-Chairman of Publication Subcommittee (IJPT))

 joe changstory michaelLomax



Joe Y. Chang (Co-Chairman of Scientific Program Subcommittee, Clinics)



Michael Story (Co-Chairman of Scientific Program Subcommittee, Biology)



Anthony Lomax (Co-Chairman of Scientific Program Subcommittee, Physics)