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Division Spotlight
Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
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!
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ANS designates Armour Research Foundation Reactor as Nuclear Historic Landmark
The American Nuclear Society presented the Illinois Institute of Technology with a plaque last week to officially designate the Armour Research Foundation Reactor a Nuclear Historic Landmark, following the Society’s decision to confer the status onto the reactor in September 2024.
Katsushi Matsuoka, Makoto Kobayashi, Rie Kurata, Junya Osuo, Naoko Ashikawa, Akio Sagara, Yasuhisa Oya, Kenji Okuno
Fusion Science and Technology | Volume 60 | Number 1 | July 2011 | Pages 412-416
Materials Development & Plasma-Material Interactions | Proceedings of the Nineteenth Topical Meeting on the Technology of Fusion Energy (TOFE) (Part 1) | doi.org/10.13182/FST11-A12391
Articles are hosted by Taylor and Francis Online.
Impurity effects on chemical behavior of energetic deuterium implanted into the carbon-oxygen containing boron films were investigated as a function of impurity concentrations by means of XPS and TDS. This study was carried out for about 40% impurities-containing boron films. It was found that a major chemical state of carbon was C-B bond and that of oxygen was free oxygen for the carbon-oxygen containing boron films. Most of deuterium was trapped by the C-B bond to form a B-C-D bond. On the other hand, free oxygen formed heavy water (D2O) and released as D2O during deuterium implantation. The amount of deuterium trapped by carbon was increased as the carbon concentration increased. However, the deuterium retention for the carbon-oxygen containing boron film with less than 20% carbon was almost twice as high as that for the only about 20% carbon-containing boron films. It was also indicated that the formation of free carbon was refrained due to the existence of free oxygen which induce the increase of C-B bond in about 40% impurities-containing boron films. These results indicate that hydrogen isotopes were trapped as B-C-D bond, which released deuterium at 900 K, in lower carbon concentration as oxygen coexists with carbon in the boron films. It was concluded that impurity concentration should be kept as low as possible to prevent tritium retention in the boron film deposited on the first wall in future fusion devices.
