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
Radiation Protection & Shielding
The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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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Latest News
Construction begins on Kairos’s fluoride salt–cooled test reactor
Earlier today, on a site in Oak Ridge, Tenn., that was formerly home to the K-33 Gaseous Diffusion Plant, Kairos Power marked the start of construction on its low-power demonstration reactor. Named Hermes, the 35-MWt test reactor claims status as the first Gen IV reactor to be approved for construction by the Nuclear Regulatory Commission and the first non–light water reactor to be permitted in the United States in more than 50 years.
James W. Schmidt, Joseph M. Harworth
Nuclear Technology | Volume 87 | Number 2 | October 1989 | Pages 520-526
Technical Paper | TMI-2: Health Physics and Environmental Release / Nuclear Safety | doi.org/10.13182/NT89-A27747
Articles are hosted by Taylor and Francis Online.
Following the Three Mile Island (TMI) Unit 2 accident, it was determined that due to the unusual radiological conditions created, an improved thermoluminescent dosimetry (TLD) system was needed to support the cleanup and recovery. As a result, a Panasonic-based TLD system was developed and installed by GPU Nuclear at the TMI facility. The resulting modified 802-type Panasonic dosimeter design and associated algorithm were developed under contract by Phillip Plato from the University of Michigan. This dosimeter/algorithm design provides for the use of a changing beta correction factor derived from beta spectral data collected by the dosimeter. The system computer-based processing equipment is driven using software developed under contract by International Science Associates. Long-term stability of the system is assured by an extensive quality control program integrated into the system operation. With the exception of several minor upgrades, the dosimetry system is essentially unchanged from its original implementation in February 1983. Additionally, the system has maintained continuous National Voluntary Laboratory Accreditation Program certification of all monitoring categories.