Logo IMG
HOME > My Amsci > Restricted Access

Restricted Access The content you've requested is available without charge only to active Sigma Xi members and American Scientist subscribers.

If you are an active member or an individual subscriber, please log in now in order to access this article.

If you are not a member or individual subscriber, you can:


2010-07HargravesF1.jpgClick to Enlarge ImageWhen the United States committed decades ago to uranium fuel and pressurized-water reactors for its nuclear program, other viable technologies were set aside. One, the liquid thorium fuel reactor with molten salt coolant, is re-emerging as potentially the safest, most cost-effective solution to future energy needs in the carbon-containment era. Thorium is abundant, produces far less toxic fission products than uranium and may soon compete with coal for cost per kilowatt-hour. The chemistry of thorium fission is compelling, and the engineering of thorium reactors, with a longer history than most people realize, appears to be seductively manageable.

Connect With Us:


Subscribe to Free eNewsletters!

Read Past Issues on JSTOR

JSTOR, the online academic archive, contains complete back issues of American Scientist from 1913 (known then as the Sigma Xi Quarterly) through 2005.

The table of contents for each issue is freely available to all users; those with institutional access can read each complete issue.

View the full collection here.

RSS Feed Subscription

Receive notification when new content is posted from the entire website, or choose from the customized feeds available.

Write for American Scientist

Review our submission guidelines.

Subscribe to American Scientist