Update on Construction Activities at Arak 40 MW Heavy Water Reactor

Private Viewpoints

April 21, 2006

Weapon Program:

Nuclear

Author:

David Albright and Paul Brannan

Publication:

Institute for Science and International Security

Commercial satellite imagery indicates that Iran has maintained steady progress in the construction of the Arak reactor.

Attachment:

Update on Construction Activities at Arak 40 MW Heavy Water Reactor

Policy Briefs

A New Game of Whack-a-Mole: Iran’s Use of High Diversion Risk Addresses

February 26, 2026

A Necessary Transition to Sanctions Convergence

October 30, 2023

Trigger Warning: The Consequences of Snapping Back Sanctions on Iran

January 31, 2023

Nuclear Timetable

Iran's Nuclear Timetable: The Weapon Potential

Updated June 11, 2025

How quickly could Iran get enough fissile material for a small nuclear arsenal? This timetable estimates how quickly Iran could amass enough weapons-grade uranium for at least five bombs. Once it has the enriched uranium, however, it could take at least several months to turn it into a working weapon.

Iran Watch

Tracking Iran's
Unconventional Weapon Capabilities

Update on Construction Activities at Arak 40 MW Heavy Water Reactor

Weapon Program:

Author:

Publication:

Attachment:

Policy Briefs

Nuclear Timetable

Search form

Weapon Program:

Author:

Publication:

Attachment:

Policy Briefs

Nuclear Timetable