Characterization of Liquid Targets in Vacuum Condition

Abstract

In recent years, a durable target is required according to the increase of the beam power. Therefore, a liquid film was formed in a vacuum and was tested as a target. Ethanol and mercury were selected as liquid target materials, and it was investigated whether the liquid sheet could be formed stably in a vacuum, taking into account the vacuum pressure. The results confirmed that the liquid films were stably formed in both cases, and the pressure values with the films were about the vapor pressure of the materials.