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
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
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
Proving DRACO will deliver
The United States is now closer than it has been in over five decades to launching the first nuclear thermal rocket into space, thanks to DRACO—the Demonstration Rocket for Agile Cislunar Orbit.
Salih Güntay, Robin C. Cripps, Bernd Jäckel, Horst Bruchertseifer
Nuclear Technology | Volume 150 | Number 3 | June 2005 | Pages 303-314
Technical Paper | Radioisotopes | doi.org/10.13182/NT05-A3624
Articles are hosted by Taylor and Francis Online.
The decomposition of aqueous colloidal suspensions of AgI induced by ionizing radiation was investigated under various conditions using 188Re as an in situ beta-radiation source. The suspensions were stabilized by an initial excess of either I- or Ag+ ions. Although the results were somewhat scattered, the following trends were observed. With an initial excess of I- and under strong oxidizing conditions (N2O sparging) at pH 2, ~65% AgI was decomposed into nonvolatile and volatile iodine (ratio 2:1) for doses of ~20 kGy, and up to ~80% was decomposed (mostly nonvolatile iodine) at pH 5. Chloride ions greatly enhanced the volatile and lowered the nonvolatile fractions. Little decomposition (<10%) was obtained with air sparging at both pH 2 and pH 5. Chloride ions increased the maximum decompositions to ~60% (~47% volatile) and ~20% (mainly nonvolatile iodine), respectively. With an initial excess of Ag+ with N2O sparging and at pH 2 and pH 5, very little volatile iodine was produced. The maximum decomposition was ~20% after ~20 kGy. Chloride ion addition at pH 2 had greatly enhanced the volatile iodine yield. The relevance of these results to the possible release of iodine to the environment following a nuclear reactor accident is discussed.