History
The research, development, manufacturing and delivery
of radiation monitoring instruments was started.
Our radiation survey meter was used to measure radioactivity on
the fishing ship contaminated by the Bikini hydrogen bomb test.
The first domestic radiation monitoring system (50 channels) was
developed for and delivered to the first domestic nuclear reactor
JRR3 of the Japan Atomic Energy Research Institute.
The first domestic whole body counter was developed and delivered to customers.
The GM-tube type personal dosemeter was developed and shipments started to nuclear power plants.
We began marketing body-surface-contamination, laundry, and article monitors.
We developed a compact, highly reliable silicon semiconductor detector
earlier than other companies, and delivered it to customers as a component
of a semiconductor type alarm dosemeter.
Total shipments of our semiconductor type personal dosemeter passed the 10,000 mark.
We began delivery of the main-steam-pipe radiation monitor and N16 radiation monitor to customers.
We developed a multifunction personal dosemeter, which could measure X rays, gamma rays,
beta rays and neutrons simultaneously. After operating Passive dosemeter and electronic personal dosemeters
in parallel at facilities using radioactive materials for a while, the Passive dosemeter was
abandoned and our electronic dosemeter used as the main measuring device. For the first time
ever we had consolidated the measuring of X rays, gamma rays, beta rays and neutrons in one dosemeter.
We won the Technology Service Person Advance Prize of the Japan Electrical Manufacturers'
Association for our personal dose monitoring system.
We delivered a 300-channel radiation monitoring system, which was the largest developed
in Japan to that time, to the reprocessing plant of the Japan Nuclear Fuel. The system made a major contribution to the safe control
of that facility.
A personnel dose telemetry monitoring system was developed.
We delivered a radiation monitoring system to the Japan Proton Accelerator Research Complex (J-PARK).
We won the Historically Significant Device Prize of the Atomic Energy Society of Japan
for our body contamination monitor and personal dosemeter.
A semiconductor type surface contamination monitor was developed.
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