ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Explore membership for yourself or for your organization.
Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
Latest Magazine Issues
Jul 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
September 2025
Nuclear Technology
August 2025
Fusion Science and Technology
Latest News
The Frisch-Peierls memorandum: A seminal document of nuclear history
The Manhattan Project is usually considered to have been initiated with Albert Einstein’s letter to President Franklin Roosevelt in October 1939. However, a lesser-known document that was just as impactful on wartime nuclear history was the so-called Frisch-Peierls memorandum. Prepared by two refugee physicists at the University of Birmingham in Britain in early 1940, this manuscript was the first technical description of nuclear weapons and their military, strategic, and ethical implications to reach high-level government officials on either side of the Atlantic. The memorandum triggered the initiation of the British wartime nuclear program, which later merged with the Manhattan Engineer District.
Y.D. Bae, J.G. Kwak, J.S. Yoon, S.U. Jeong, B.G. Hong
Fusion Science and Technology | Volume 43 | Number 1 | January 2003 | Pages 83-85
Heating | doi.org/10.13182/FST03-A11963568
Articles are hosted by Taylor and Francis Online.
An ICRF antenna for 6 MW RF power coupling to plasmas has been developed. For long pulse (300 s) and high power operation, the antenna has many cooling channels inside the current strap, Faraday shield, cavity wall and vacuum transmission line to remove the dissipated RF power and incoming plasma heat loads. The RF power test has been performed to ascertain the voltage and current limits of the antenna at the frequency of 30 MHz. During the RF pulse, the peak voltage, forward/reflected powers, temperature on the cavity wall, and gas pressure are measured. Results show the peak voltage of 33.2 kVp for 60 s and 25.2 kVp for 300 s (without cooling).
