| Zita | Martins | Department of Earth Science and Engineering, Imperial College London | 2012-09-19 | 2012-09-19 |
| Zachory | Berta | Harvard University | 2007-11-05 | 2008-02-04 |
| Yu | Veznov | Institute of Nuclear Physics, Moscow State University | 2011-03-26 | 2011-04-19 |
| Will | Percival | University of Portsmouth | 2011-03-03 | 2011-03-03 |
| Vladimir | Dzhunushaliev | Kyrgyz-Russian Slavic University, Bishkek, Kyrgyz Republic | 2010-05-18 | 2010-05-21 |
| Vittoria | Finazzi | | 2006-01-23 | 2006-07-23 |
| Violeta | González | Durham University | 2010-04-12 | 2010-04-16 |
| Vincent | Tatischeff | Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse(CNRS) | 2007-01-02 | 2008-06-16 |
| Vincent | Desjacques | U. of Zurich, Switzerland | 2010-05-11 | 2010-05-14 |
| Vincent | AAron | McGill University (Canada) | 2012-03-15 | 2012-03-19 |
| Valeri | Obukhov | Tomsk State Pedagogical University (Rusia) | 2009-05-24 | 2009-06-10 |
| Valeri | Obukhov | Tomsk State Pedagogical University (Rusia) | 2010-05-24 | 2010-05-27 |
| Tomohiro | Inagaki | Hiroshima University | 2009-02-28 | 2009-03-06 |
| Tomi | Koivisto | Institute of Theoretical Astrophysics, University of Oslo | 2011-11-30 | 2011-11-30 |
| Tom | Broadhurst | | 2011-02-23 | 2011-02-24 |
| Tao | Wang | University of Beijing (China) | 2009-11-16 | 2009-11-19 |
| Tanya | Lim | (RAL, UK) | 2012-09-12 | 2012-09-14 |
| Stefano | Anselmi | Departamento de Física - Universidad de Padova - Italia | 2012-01-15 | 2013-02-10 |
| Stefania | Pandolfi | Università di Roma La Sapienza | 2008-02-15 | 2008-04-15 |
| Sreemoyee | Sarkar | Saha Institute of Nuclear Physics | 2012-10-22 | 2012-12-19 |
