The 20^th International Conference on Positron Annihilation
1-6 Jun 2025
Takamatsu, Japan

The 1st circular can be downloaded below.

    Masanori FUJINAMI (Chiba University) 

On behalf of all members of the Japanese positron groups, it’s my great pleasure to chair the organization of the 20th International Conference on Positron Annihilation (ICPA20) and we warmly invite you to join us at Kagawa International Hall and Sunport Hall, Takamatsu, Kagawa, Japan on June 1-6, 2025. ICPA aims to cover fundamental and emerging trends in all aspects of positron and positronium annihilation, and to provide opportunities to exchange knowledge and promote collaborations.

        ICPA19 was held as an online meeting due to COVID-19, but ICPA20 will be the first full face-to-face meeting in seven years, so that a lot of social programs will be also prepared to enhance interactions among researchers. In particular, we will encourage young researchers and PhD students to broaden their perspectives and expand the scope of their research. We hope that many researchers will gather and have a meaningful time in Takamatsu, a place of scenic beauty and plenty of fresh food.

We are looking forward to meeting you at Takamatsu, Japan. 
 

1. Fundamental aspects of positron & Ps
2. Antihydrogen production & its fundumental studies
3. Theory; Calculations of positron annihilation characteristics etc.
4. Advances in experimental techniques, including positron & Ps beams
5. Positron & Ps in gas, liquids and multiphase systems
6. Positronic  & Ps compounds
7. Surface studies
8. Electronic structure in materials
9. Defects in materials
10. Porous materials, nanostructured and confined systems
11. Polymer and non-crystalline materials
12. Materials for industrial applications (nuclear, hydrogen energy technology, semiconductor, ceramics, polymer, battery etc.)
13. Biological and medical applications of positron & Ps (e.g. Positron Emission Tomography)
14. Artificial intelligence (AI) in positron science
15. Other studies related with positron & positronium