United States · Livermore, CA · 37.686, -121.764 (approximate location)

ISSA Inherently Safe Subcrit

ISSA Inherently Safe Subcrit, a research reactor (subcritical assembly) in Livermore, CA, United States, operated by Lawrence Livermore National Laboratory. Operating, first critical in 2012.

It is one of the 48 research reactors operating in the United States, one of 5 zero-power assemblies among them. It went critical 70 years after the first research reactor in the United States, CP-1, Chicago Pile 1 (1942). It is one of 20 subcritical assemblies operating worldwide, spread across 13 countries. Its declared uses include nuclear data measurements.

Country

United States

City

Livermore, CA

Type

Subcritical assembly

Thermal power

critical

Operator

Lawrence Livermore National Laboratory

Status

Operating

First criticality

2012

Purpose

Nuclear data

See also: every research reactor in United States · How research reactors work