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
Nuclear energy for maritime shipping and coastal applications
The Boston-based Deon Policy Institute has published a white paper that examines the applications of nuclear energy in the maritime sector—specifically, floating nuclear power plants and nuclear propulsion for commercial vessels. Topics covered include available technologies, preliminary cost estimates, and a status update on the regulatory framework.
Unique opportunity: The paper points out that nuclear energy has the potential to benefit the shipping industry with high energy efficiency, lower operating costs, and zero carbon emissions. The report has a special focus on Greece, a nation that controls about 20 percent of the global commercial fleet and thus has an opportunity to take a leading role in the transition to nuclear-powered shipping.
S. Ramakrishnan, N. Greenough, E. Fredd, S. Bernabei, C. Neumeyer
Fusion Science and Technology | Volume 30 | Number 3 | December 1996 | Pages 830-833
Plasma Fuelingand Heating, Control, and Currentdrive | doi.org/10.13182/FST96-A11963040
Articles are hosted by Taylor and Francis Online.
Lower Hybrid Current Drive (LHCD) Heating is proposed to be provided for the Tokamak Fusion Test Reactor Advanced Phase (TFTR-AP). The power to be delivered to the plasma is a total additional RF power of 3 MW (4 MW Source Power) at 4.6GHz, divided into two systems of 1.5 MW each. The first system (first phase of the job) is scheduled to be operational in April 1997 and the second system (Second phase of the job) by September 97. (The project is now on hold due to funding limitations). The Reactor is expected to operate for three more years with the additional equipment. It is proposed to utilize used equipment from the Princeton Beta Experiment (PBX) tokamak, Massachusetts Institute of Technology (MIT), and Lawrence Livermore National Laboratory (LLNL) wherever feasible. Power System equipment is also proposed to be taken on loan from LLNL for the LHCD system. The major concern in the LHCD hardware is driven by the new operating duty cycle. The PBX LHCD system was designed for operation for 500 milliseconds every 300 seconds. The system for TFTR requires operation for 3 seconds every 300 seconds. During the Conceptual Design Phase of LHCD for TFTR, the power system components for Electrical Power System were analyzed to verify whether the equipment can meet the new operational requirements with or without modifications. The Power System is composed of electrical and mechanical systems that convert 13.8 kV prime power to controlled pulsed power required for the LHCD system. The major equipment involved are Circuit Breakers, Auto and Rectifier Transformers, Surge Suppression components, Power Tetrodes, HV Decks, Klystron Amplifiers and Transmission lines. Heat runs are proposed to be conducted for the Power equipment to verify capability. Other components were analyzed to verify their thermal limitations. This paper describes the Electrical Power System components for the Lower Hybrid Current Drive
