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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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
Ho Nieh nominated to the NRC
Nieh
President Trump recently nominated Ho Nieh for the role of commissioner in the Nuclear Regulatory Commission through the remainder of a term that will expire June 30, 2029.
Nieh has been the vice president of regulatory affairs at Southern Nuclear since 2021, though he is currently working as a loaned executive at the Institute of Nuclear Power Operations, where he has been for more than a year.
Nieh’s experience: Nieh started his career at the Knolls Atomic Power Laboratory, where he worked primarily as a nuclear plant engineer and contributed as a civilian instructor in the U.S. Navy’s Nuclear Power Program.
From there, he joined the NRC in 1997 as a project engineer. In more than 19 years of service at the organization, he served in a variety of key leadership roles, including division director of Reactor Projects, division director of Inspection and Regional Support, and director of the Office of Nuclear Reactor Regulation.
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.
