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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
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!
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Latest News
Former Exelon CEO Chris Crane remembered for “transformational milestones”
Crane
Exelon announced that Chris Crane, the company’s former chief executive, passed away on Saturday in Chicago at the age of 65.
Crane served as the company’s president and CEO from 2012 until his retirement in December 2022. During his tenure, he steered the energy company through several transformational milestones, including the successful mergers with Constellation Energy in 2012 and Pepco Holdings in 2016, creating the largest utility business by customer count in the United States.
In 2022, with the spin-off of Constellation as the generation and retail side of energy business (with the largest U.S. nuclear fleet), Crane led the creation of a stand-alone transmission and delivery energy company.
Hashem M. Hashemian, Wendell C. Bean
Nuclear Technology | Volume 176 | Number 3 | December 2011 | Pages 414-429
Technical Paper | Nuclear Plant Operations and Control | doi.org/10.13182/NT11-A13317
Articles are hosted by Taylor and Francis Online.
Cable condition monitoring involves a variety of testing or monitoring methods, none without limitations. Mechanical and chemical tests are only local in their effectiveness; they can miss problems in the untested cable. Electrical-cable-condition-monitoring tests - including insulation resistance tests, impedance measurements (such as the LCR test), and reflectometry or "cable radar" methods - make it possible to test entire cable circuits while they remain in operation. Impedance measurements enable the evaluation of cable condition factors such as dielectric absorption ratio, polarization index, quality factor, and dissipation factor. Several new electrical measurement methods, including time or frequency domain reflectometry, and a wireless microsensor technology called AgeAlert™, are showing promise as techniques for in situ monitoring of the nuclear power plant cable condition. The integration of all these methods and their combination with end-device testing methods represent a new application of cable condition monitoring that promises to provide the correlation between aging test results and the aging condition of in situ cables that individual methods by themselves do not provide.