No.1（2006）16.A New Automatic Evaporation System for Fallout Measurement

Masaaki Saito, Norio Kato

A continuous evaporation system was developed. Sample water was continuously supplied to rotary evaporator with a tube pump. The tube pump was controlled by a water level sensor placed in a sample flask. A condenser was turned upside down, and droplets of water were continuously removed by an aspirator. The merits of the system are as follows,:

1. labor saving, with continuous day and night unmanned operation,
2. no generation of water vapor in a room,
3. very safe, with only 60℃ heating temperature,
4. 20L of sample water per day can be evaporated.

Keywords

automatic evaporator, rain, fallout, environmental radioactivity

Back to Contents