On The Cosmic Ray Observation System (Spark Chamber)

• The discharge chamber(spark chamber) is the observation system of flight track of particles
• developped ,first in the world, at Osaka University by Prof. Shuji Fukui of Nagoya University
• and received the Nishina Memorial Prize in 1961 and Asahi Prize in 1962). Various type of
• discharge chamber(spark chamber) are now widely used all over the world,in the institutes of
• High Energy Physics and/or Cosmic Rays as the central experimental apparatus. With technical
• guidance of Prof. Fukui, OHYO KOKEN KOGYO CO., LTD. modified the discharge
• chamber(spark chamber) used for experimental research and developped a scientific
• education system and named as The Cosmic Ray Observation System [Spark Chamber]
• (Patent pending).
• For exhibition purpose , the system is designed with special considerations on ease of
• observation and maintenance as well as safety. We believe that the Cosmic Ray Observation
• System [Spark Chamber] is useful to recognise the existence of natural radiation and for
• better understanding of radiation by observing on-coming cosmic rays.

electronic catalog(Japanese)