1. Institute for Radiological Protection and Nuclear Safety (IRSN), B.P. 17, Fontenay-aux-Roses, France
2. Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, Braunschweig, Germany
3. Nofer Institute of Occupational Medicine (NIOM), St Teresa 8, Lodz, Poland
4. Greek Atomic Energy Commission (GAEC), PO Box 60092, Agia Paraskevi, Athens, Greece
5. Universitat Politécnica de Catalunya (UPC), Diagonal 647, Barcelona, Spain