In order to achieve high collection efficiency splashing of the droplet on the collector surface has to be minimized. It was determined that droplet collector with an incidence angle of 35 degrees can prevent a uniform droplet stream with droplet diameter 250 μm and a velocity of 16 m/s from splashing under microgravity condition. Another solution is to have a liquid film formed on the inner surface of the collector. When the droplet streams are absorbed in this liquid film, no splashes should be formed. A miscapture rate of incoming droplets was required to be less than 10. The droplet diameter was determined to be less than 300 μm and the droplet speed less than 20 m/s. If a ferrofluid is used a magnetic focusing means can effectively suppress splashing.