1. Zsolt Kajcsos 1946-2011 Photo courtesy of Prof. Reinhard Krause-Rehberg

2. 1970-2011 Research Institute for Nuclear and Particle Physics of the Hungarian Academy of Sciences (Budapest, Hungary) 1977-1979, 1986-1988 KFA Jülich (Germany) 1983-1985 Gutenberg University, Mainz (Germany) 2002 University of Coimbra (Portugal) Photo courtesy of Prof. Reinhard Krause-Rehberg

3. Organization of meetings, conferences 1991 ICPA-9 (Szombathely, Hungary) 1995 PPC-5 (Lillafüred, Hungary) 2008 PPC-8 (Coimbra, Portugal) and others Photo courtesy of Prof. Reinhard Krause-Rehberg

5. Organization of meetings, conferences 1991 ICPA-9 (Szombathely, Hungary) 1995 PPC-5 (Lillafüred, Hungary) 2008 PPC-8 (Coimbra, Portugal) and others Member of ICPA and PPC International Scientific Committee Photo courtesy of Prof. Reinhard Krause-Rehberg

6. 1970-positronium studies (hydrocarbons, micelles, liquids, amino acids …) 1980-metallic glasses [1983-1985 Mainz: Time-Differential Mössbauer Emission Spectrometer - TDMES] [1986-1988 Jülich: Conversion Electron Mössbauer Spectroscopy, CEMS] ~1993- positronium in zeolites Plans: Performance optimization in positronium annihilation measurements (utility rate)

7. n-hexane n-dodecane

8. 1970-positronium studies (hydrocarbons, micelles, liquids, amino acids, …) 1980-metallic glasses [1983-1985 Mainz: Time-Differential Mössbauer Emission Spectrometer - TDMES] [1986-1988 Jülich: Conversion Electron Mössbauer Spectroscopy, CEMS] ~1993- positronium in zeolites Plans: Performance optimization in positronium annihilation measurements (statistical utility rate)

10. Photo courtesy of Prof. Reinhard Krause-Rehberg Deputy director of the Institute (2003-2011) European Research Coucil Advanced Grant panel COST (European Cooperation in Science and Technology) vice chair of domain committee and many other activities March 2011 Order of Merit of the Republic of Hungary

11. Photo courtesy of Prof. Reinhard Krause-Rehberg

12. Zsolt Kajcsos 1946-2011 Photo courtesy of Prof. Reinhard Krause-Rehberg