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.
Division Spotlight
Accelerator Applications
The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
Latest News
Vogtle-3 shuts down for valve issue
One of the new Vogtle units in Georgia was shut down unexpectedly on Monday last week for a valve issue that has since been investigated and repaired. According to multiple local news outlets, Georgia Power reported on July 17 that Unit 3 was back in service.
Southern Company spokesperson Jacob Hawkins confirmed that Vogtle-3 went off line at 9:25 p.m. local time on July 8 “due to lowering water levels in the steam generators caused by a valve issue on one of the three main feedwater pumps.”
Louis A. Rosocha, Kenneth Bruce Riepi
Fusion Science and Technology | Volume 11 | Number 3 | May 1987 | Pages 576-611
Technical Paper | KrF Laser | doi.org/10.13182/FST87-A25037
Articles are hosted by Taylor and Francis Online.
Krypton-fluoride lasers have been shown to be promising candidates for inertial confinement fusion (ICF) drivers. These lasers can be effectively pumped with electrical discharges or energetic electron beams (e beams). With discharge pumping, the laser aperture is limited in size to a few centimetres (at atmospheric pressure) because of discharge instabilities that cause a homogeneous discharge to degenerate into arcs. Much larger aperture lasers can be pumped using relativistic e beams. At Los Alamos National Laboratory (LANL), we are constructing high-energy e-beam-driven KrF lasers with apertures as large as 1 m2 for the ICF program. In designing and building these lasers, a number of physics and engineering issues related to large area electron guns (e guns) must be addressed. Among these issues are the following: generation of the relativistic e beams, transport of the e beams into the laser gas, and design and construction of pulsed power devices for driving the e guns. Cold cathode e guns are found to be useful sources for driving these large volume KrF lasers. Presented are some brief background comments on cold-cathode sources. We will also discuss the cathode current emission mechanisms, basic beam transport considerations, pulsed power devices for powering these e guns, and measured e-gun performance. Particular emphasis is given to practical considerations related to the two main LANL KrF/ICF laser systems: the 10-kJ Aurora system and the 100-kJ power amplifier module design.