Japan · Oarai · 36.313, 140.575

JMTR

JMTR, a research reactor (tank) in Oarai, Japan, with 50 MW of thermal power, operated by Oarai Research and Development Institute. Shut down, first critical in 1968.

It was one of the 27 research reactors Japan has had; 9 remain in operation today. It went critical 11 years after the first research reactor in Japan, JRR-1 (1957). 36 tank-type reactors remain in operation today across 23 countries. Its declared uses include isotope production, activation analysis, innovative research and materials testing.

Country

Japan

City

Oarai

Type

Tank

Thermal power

50 MW

Operator

Oarai Research and Development Institute

Status

Shut down

First criticality

1968

Purpose

Isotope production, activation analysis, innovative research, materials testing

See also: every research reactor in Japan · How research reactors work