Paper (a) discusses the prediction by simulating the effect called the rapid increase of high-order harmonics. This was regarded as a hyperbole by world-famous experimentalists, drawing comments such as “it is impossible.” However, this effect was proven four years later by conducting an experiment at the RIKEN research lab. Paper (b) discusses this experiment. The excitement and wonderment of verifying what was predicted with theory or simulation through an experiment, as well as creating a new hypothesis (even if it is proven to be wrong later), are some of the joys of research. The prediction in paper (c) was also criticized by a theoretician who is regarded as an expert in the field. However, its content was verified recently in an experiment with a free-electron laser conducted during an international joint project with multinational participants. Paper (d) discusses this experiment. The prediction in paper (e) has not yet been verified. However, it catalyzed an international joint research project with Technische Universität Wien, Imperial College London, and the Max Born Institute. Why do light, electrons, atoms or molecules act so predictably such that equations can be used to describe their behavior? How do they know why and how to move next even though that is something difficult even for a super computer to calculate? The way a study of basic phenomena leads to applications in unexpected manners is another joy of research.

The leading research facility for accelerator mass spectrometry in Asia. In this field, it is also known as MALT and is recognized globally. We also host many international conferences. Recently, we hosted the 4th East Asia AMS Symposium in December 2011, where researchers from around the world gathered. In September 2012, I was appointed as the chairman of the AMC session of the International Mass Spectrometry Conference (IMSC2012).
Due to its nature, accelerator mass spectrometry is often involved in joint research with researchers from diverse fields. We have lively exchanges not only with researchers in engineering or geoscience but also with researchers in history or archeology.