Jump to search Jump to main navigation Jump to main content Jump to footer navigation

Global Security Newswire

Daily News on Nuclear, Biological & Chemical Weapons, Terrorism and Related Issues

Produced by
NationalJournal logo

Los Alamos Pulls Medical Isotope From Low-Enriched Uranium

The Los Alamos National Laboratory in New Mexico announced on Monday it had tapped a low-enriched uranium fuel sample for nearly its full yield of a critical medical isotope, hinting at an alternative to bomb-usable uranium for generating the substance.

The decay of molybdenum 99 produces technetium 99m, which is widely used in diagnostic health procedures. The isotope is presently not produced in the United States and largely comes by use of highly enriched uranium fuel sources in provider nations such as Canada. International manufacturing sites have faced closures and other technical problems in recent years, contributing to the material's scarcity.

The separation process used particle acceleration to draw molybdenum 99 from a slightly acidic low-enriched uranium solution, according to a Los Alamos press release. The technique mirrored a proposed process for generating the material on a larger scale, the laboratory said without specifying when mass production might begin.

Scientists faced a significant challenge in the need to separate isotopes from a much larger quantity of uranium without altering remaining material into new forms unsuitable for recycling, the statement says. In the latest experiment, though, there was "no observable loss in ... Mo-99 recovery" after irradiating and extracting isotopes from the uranium three times.

"The results confirm the viability of both the Mo-99 separation process and uranium fuel recycling, which can lower operating costs and minimize waste generation," according to the laboratory.

The project took place under the auspices of the National Nuclear Security Administration. The NNSA Global Threat Reduction Initiative has collaborated with U.S. national laboratories and private firms to promote manufacturing of molybdenum 99 without highly enriched uranium.

Note to our Readers

GSN ceased publication on July 31, 2014. Its articles and daily issues will remain archived and available on NTI’s website.

NTI Analysis

  • Nuclear Disarmament Dynamic Map

    Sept. 23, 2015

    The Nuclear Disarmament Resource Collection contains information and analysis of nuclear weapons disarmament proposals and progress worldwide, including detailed coverage of disarmament progress in countries who either possess or host other countries' nuclear weapons on their territories.

  • There Are No Perfect Nuclear Deals

    Aug. 30, 2015

    Sam Nunn and Richard Lugar urge Congress to support the nuclear agreement with Iran in an op-ed for Politico.

Country Profile

Flag of United States

United States

This article provides an overview of the United States’ historical and current policies relating to nuclear, chemical, biological and missile proliferation.

Learn More →