Skip to main content

Cohen, Samuel Theodore

Samuel Theodore Cohen, 1921–2010, American physicist known as the "father of the neutron bomb," b. Brooklyn, N.Y., grad. Univ. of California, Los Angeles, 1943. He worked on the Manhattan Project, becoming an expert on the radiological effects the atomic bomb, and subsequently worked (1947–69) for the Rand Corporation. As a consultant to the Lawrence Livermore National Laboratory, he developed (1958) the neutron bomb, a modification of the hydrogen bomb that is designed to produce lethal neutron radiation but no long-term radioactive contamination. Seeing the neutron bomb as a weapon tailored to destroy the enemy on the battlefield, Cohen was a advocate of the device's deployment as a tactical weapon, but despite a successful test the bomb was not produced by the United States until the 1980s and was never deployed. He wrote a number of books on the neutron bomb and nuclear warfare.

See his memoir (2000, pub. online).

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"Cohen, Samuel Theodore." The Columbia Encyclopedia, 6th ed.. . 17 Jul. 2019 <>.

"Cohen, Samuel Theodore." The Columbia Encyclopedia, 6th ed.. . (July 17, 2019).

"Cohen, Samuel Theodore." The Columbia Encyclopedia, 6th ed.. . Retrieved July 17, 2019 from

Learn more about citation styles

Citation styles gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, cannot guarantee each citation it generates. Therefore, it’s best to use citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

The Chicago Manual of Style

American Psychological Association

  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.