2023年1月1日 · In this paper, a 3D temperature field construction method based on Raman Distributed Temperature Sensor (RDTS) with improved spatial resolution is proposed to monitor the side surface temperature of Nuclear Waste Barrel (NWB). This method includes two aspects: the spatial resolution enhancement of RDTS and the signal dimension conversion.

Long-term nuclear waste warning messages are communication attempts intended to deter human intrusion at nuclear waste repositories in the far future, within or above the order of magnitude of 10,000 years. Nuclear semiotics is an interdisciplinary field of research, first established by the American Human Interference Task Force in 1981.

The present work aims to establish an absolute waste barrel assay procedure to mitigate such risks by offering a robust method for the detection and assay of transuranic subconcealments in nuclear waste barrels using high-resolution γ-ray spectrometry.

2022年12月5日 · Via the duo-parametric analysis that is founded on the scattering angle as well as the absorption in the present study, we show that the presence of the nuclear materials in the waste barrels is numerically visible in comparison with the concrete-filled waste drum without any nuclear material, and the muon tomography is capable of ...

Typical reactors get about 50 MWd/kg out of their fuel on average, which represents roughly 5% of the total nuclear energy in each pellet. The rest is regular U-238, which is usable as fuel in breeder reactors. The stack of fission products on a football field, then would be just 15 cm high (5.9 inches). This would look roughly like this:

2023年1月1日 · In this paper, a 3D temperature field construction method based on Raman Distributed Temperature Sensor (RDTS) with improved spatial resolution is proposed to monitor the side surface temperature...

2023年7月1日 · Storage of nuclear spent fuel and cooling of the fuel assembly is one of the vital requirements for nuclear safety. This engineering technology involves a dynamic thermo-fluid phenomenon in the dry storage casks.

2024年5月21日 · LOS ALAMOS, N.M. — The U.S. Department of Energy (DOE) Office of Environmental Management Los Alamos Field Office (EM-LA) and Newport News Nuclear BWXT Los Alamos (N3B), the legacy cleanup contractor at Los Alamos National Laboratory (LANL), are demonstrating a new system to more accurately analyze the contents of radioactive waste drums.

Bomb-grade fuel must be enriched further, preferably to 90% U-235, which is called highly-enriched uranium (HEU). Unfortunately, the same technology used to make LEU for nuclear power (e.g., the gas centrifuges used in Iran’s nuclear program) can be …

The M65 atomic cannon, often called Atomic Annie, [6]: 92 was an artillery piece built by the United States and capable of firing a nuclear device. It was developed in the early 1950s, at the beginning of the Cold War; and fielded between April 1955 and December 1962, in West Germany, South Korea and on Okinawa.