President:

Odair D. Goncalves
Comissao Nacional de Energia Nuclear
( CNEN )
R. General Severiano, 90
22290-901
Rio de Janeiro   RJ   
BRAZIL

Secretariat:

Michael J. Farquharson
Dept. Medical Physics and Applied
Radiation Sciences
McMaster University
Hamilton    Ontario
CANADA

Treasurer:

Malcolm J. Cooper
Department of Physics
University of Warwick
Coventry CV4 7AL U.K
UNITED  KINGDOM

Chair, Advisory Board

Dudley C. Creagh
Division of Health Design and Science
University of Canberra
Canberra    A.C.T.   2601
AUSTRALIA

Regional Vice Presidents:

North America:

William L. Dunn  (USA)

South and Central America:

Marcelo Rubio (Argentina))

Africa and Middle East:

Mohamed Gomaa (Egypt)

Central and Eastern Europe

Ladislav Musilek (Czech Republic)

F.S.U

Alexander P. Potylitsyn (Russia)

Western Europe:

Jorge E. Fernandez (Italy)

S.E. Asia :

Suprakash C. Roy (India)

Australasia :

Christopher T. Chantler (Australia)

North East Asia:

Wu Ziyu  (PR China)

Executive Councillors:

Larry Hudson   (U.S.A.)

Isobel Lopes   (Portugal)

Raul T. Mainardi   (Argentina)

Francesc Salvat  (Spain)

P.K. Sarkar  (India)

Peter K.N. Yu   (Hong Kong)