Pulsed-power applications to materials science

It is known that an intense pulsed ion beam interaction with solid targets is able to produce high-density ablation plasma due to its short range. Efficient preparation of thin films has been succeeded very quickly, without heating the substrate during the deposition, called pulsed ion-beam evaporation (IBE). By the rapid cooling of the ablation plasma produced by IBE with the ambient gas, ultrafine nanosize powders (UNP) has been successfully synthesized as well. The UNPs have also been produced by pulsed wire discharge (PWD). For the practical applications, highly repetitive pulsed power generators have been developed using semiconductor switches such as MOS-FET, IGBT, and SI thyristor.