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Division Spotlight
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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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Smarter waste strategies: Helping deliver on the promise of advanced nuclear
At COP28, held in Dubai in 2023, a clear consensus emerged: Nuclear energy must be a cornerstone of the global clean energy transition. With electricity demand projected to soar as we decarbonize not just power but also industry, transport, and heat, the case for new nuclear is compelling. More than 20 countries committed to tripling global nuclear capacity by 2050. In the United States alone, the Department of Energy forecasts that the country’s current nuclear capacity could more than triple, adding 200 GW of new nuclear to the existing 95 GW by mid-century.
T. Roger Billeter, L. D. Blackburn
Nuclear Technology | Volume 31 | Number 2 | November 1976 | Pages 264-275
Technical Paper | Technique | doi.org/10.13182/NT76-A31689
Articles are hosted by Taylor and Francis Online.
Excellent sensitivity and accuracy in the measurement of deformation occurring in materials tests have been achieved with a newly developed microwave frequency sensor and instrumentation system. The strain sensor comprises a microwave cavity resonating in the circular TE113 and TM110 modes. Detection of axial strain occurs due to the changes of resonant frequency incurred by cavity length changes. Axial strain sensitivity for the TE113 mode was 6 × 10−6 per MHz, whereas radial dimensions of the cavity were related to frequency of the TM110 mode. Aperture coupling of the cavity to the end wall of Ka band waveguide provided signal excitation of the two monitored modes. Phase-locked frequency stability enabled digital count/display of resonant frequencies to within 70 kHz at 35 GHz. Room temperature tension test results demonstrated a strain measuring sensitivity (±1 × 10−6) and accuracy (±1% of the measured value) equivalent to those of electrical resistance strain gauges. The system yields accurate measurements of elastic strains as well as small departures from elastic response and hysteresis behavior during unloading and reloading. Creep test results confirm that measurement sensitivity and accuracy are retained in elevated temperature tests. Strain response on loading, subsequent creep deformation, and creep recovery after unloading can all be measured in detail. The stability of microwave sensor calibration after exposure for 22 × 106 s at temperatures from 728 to 866 K is shown to be excellent.
