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 Installations Safety
Devoted specifically to the safety of nuclear installations and the health and safety of the public, this division seeks a better understanding of the role of safety in the design, construction and operation of nuclear installation facilities. The division also promotes engineering and scientific technology advancement associated with the safety of such facilities.
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
Become a knowledge manager at UWC 2024
The American Nuclear Society is now accepting applications for knowledge managers to work during the 2024 Utility Working Conference and Vendor Technology Expo. This year’s UWC, “Nuclear Momentum: Advancing Our Clean Energy Future,” will be held August 4–7, 2024, at the JW Marriott Marco Island Beach Resort on Marco Island, Fla.=
Shigeo Yoshida, Isao Murata, Akito Takahashi
Fusion Science and Technology | Volume 34 | Number 3 | November 1998 | Pages 656-660
Safety and Environment (Poster Session) | doi.org/10.13182/FST98-A11963689
Articles are hosted by Taylor and Francis Online.
In the Intense 14 MeV Neutron Source Facility OKTAVIAN of Osaka University, Japan, which produces fusion neutrons by D-T reaction, we have many experience in handling tritium targets and tritiated contaminants. In OKTAVIAN, the transition of tritium concentration in urine and exhaled water of some workers was measured with a liquid scintillation counter for years. Using the measured results between the concentration of tritium in urine and in exhaled water, we have found a simple method to lead excretion parameters in order to estimate the internal exposure dose. The first decreasing term, HTO component, was expressed as a simple exponential function with the measured concentration of HTO in exhaled water. The second and third decreasing terms, OBT component, were expressed as a sum of two exponential functions using the difference between the concentration of HTO in exhaled water and the total tritium concentration in urine in equilibrium. And the excretion function of total tritium in urine can be expressed as a sum of their three exponential decreasing terms. Moreover, without measurements of longer-term, it becomes possible to analyze the longer half-life in OBT component at a short time.