United States · Baltimore · 39.286, -76.615 (approximate location)

MPR Zero Power Test

MPR Zero Power Test, a research reactor (critical assembly) in Baltimore, United States, with 10 W of thermal power, operated by Martin Strawberry Point Facility. Decommissioned, first critical in 1957.

It was one of the 340 research reactors the United States has had; 48 remain in operation today. It went critical 15 years after the first research reactor in the United States, CP-1, Chicago Pile 1 (1942). 44 critical assemblies remain in operation today across 12 countries. Its declared uses include materials testing.

Country

United States

City

Baltimore

Type

Critical assembly

Thermal power

10 W

Operator

Martin Strawberry Point Facility

Status

Decommissioned

First criticality

1957

Purpose

Materials testing

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