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Maintaining the Stockpile

  • WASHINGTON D.C. - On March 25-27, 2015, the National Nuclear Security Administration (NNSA) hosted representatives from 11 States Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) and one representative from the United Nations Office for Disarmament Affairs. The...
  • Third Flight Demonstrated Dynamics and Functional Performance in Flight EnvironmentWASHINGTON, D.C. – The National Nuclear Security Administration (NNSA) today announced the Follow-On Commander Evaluation Test-51 (FCET-51) flight body was successfully flown by the Navy recently. This test was one...
  • WASHINGTON, D.C. – The National Nuclear Security Administration (NNSA) announced today that its Sandia National Laboratories successfully completed the first full-scale wind tunnel test of the B61‑12 as part of the NNSA’s ongoing effort to refurbish the B61 nuclear bomb. The purpose of this test...
  • WASHINGTON, D.C. – The National Nuclear Security Administration (NNSA) today announced that Los Alamos and Sandia national laboratories successfully completed the first full-system mechanical environment test of the B61‑12 as part of the NNSA’s ongoing effort to refurbish the B61 nuclear bomb. This...
  • Maintaining the safety, security and effectiveness of the nuclear deterrent without nuclear testing – especially at lower numbers – requires increased investments across the nuclear security enterprise. The National Nuclear Security Administration (NNSA) ensures the Nation sustains a safe,...
  • DOE/NNSA has identified LLNL's High Explosives Applications Facility (HEAF) as the complex-wide "Center of Excellence" for High-Explosives Research and Development. In this capacity, HEAF is a source of subject matter expertise for high explosives and other energetic materials. Its mission is to...
  • An integral part of the national hydrotest program, the DARHT is the world's most powerful x-ray machine. DARHT consists of two electron accelerators oriented at right angles to one another. Each accelerator creates a powerful electron beam that is focused onto a metal target which converts the...
  • LANSCE provides the scientific community with intense sources of neutrons supporting both civilian and national security applications.  The principal sponsors of LANSCE include the DOE, NNSA, Office of Science and Office of Nuclear Energy, Science and Technology. Users conduct research at...
  • The JASPER gas gun at the Nevada National Security Site is used to fire a projectile at a plutonium target.  The shock wave produced by the impact passes through the plutonium, and diagnostic equipment measures the properties of the shocked plutonium.  Shock physics experiments such as...
  • The U1a Complex is an underground laboratory at the Nevada National Security Site used for dynamic experiments with special nuclear material (SNM) and other weapon materials.  The Complex provides an infrastructure of high-bandwidth diagnostics, data acquisition, timing and firing, control and...

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