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
Robotics & Remote Systems
The Mission of the Robotics and Remote Systems Division is to promote the development and application of immersive simulation, robotics, and remote systems for hazardous environments for the purpose of reducing hazardous exposure to individuals, reducing environmental hazards and reducing the cost of performing work.
Meeting Spotlight
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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
May 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
June 2024
Nuclear Technology
Fusion Science and Technology
Latest News
Retrieval of nuclear waste canisters from a borehole
Borehole disposal of spent nuclear fuel (SNF) and high-level waste (HLW) uses off-the-shelf directional drilling technology developed and commercialized by the oil and gas sectors. It is a technology that has been gaining traction in recent years in the nuclear industry. Disposal can be done in one or more boreholes (including an array) drilled into suitable sedimentary, igneous, or metamorphic host rocks. Waste is encapsulated in specialized corrosion-resistant canisters, which are placed end to end in disposal sections of relatively small-diameter boreholes that have been cased and fluid-filled. After emplacement, the vertical access hole is plugged and backfilled as an engineered barrier.
Chizuo Mori, Masayuki Tojo, Katsuo Yanagida, Junichi Goto, Akira Uritani, Hiroshi Miyahara, Yuyan Wu, Katsuhisa Kudo, Naoto Takeda, Yujiro Ikeda, Yoshimi Kasugai, Toshiyuki Iida, Yoichi Sakuma, Mamiko Sasao
Fusion Science and Technology | Volume 30 | Number 3 | December 1996 | Pages 1134-1138
Neutronics Experiments and Analyses | doi.org/10.13182/FST96-A11963101
Articles are hosted by Taylor and Francis Online.
A new type of fast neutron spectrometer composed of a proportional counter with methane and a Si semiconductor detector was constructed for the measurement of plasma-temperature. Methane can act as recoil-proton converter and also as energy loss measurement of the proton in the converter. Si detector, off-centered to avoid radiation damage, measures the rest energy of the recoil-proton. The energy resolutions were 2.4 % for 5 MeV neutrons and 2.9 % for 14 MeV neutrons.