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Meeting 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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The U.S. Million Person Study of Low-Dose-Rate Health Effects
There is a critical knowledge gap regarding the health consequences of exposure to radiation received gradually over time. While there is a plethora of studies on the risks of adverse outcomes from both acute and high-dose exposures, including the landmark study of atomic bomb survivors, these are not characteristic of the chronic exposure to low-dose radiation encountered in occupational and public settings. In addition, smaller cohorts have limited numbers leading to reduced statistical power.
Norbert G. Hoogen, Erich R. Merz
Nuclear Technology | Volume 61 | Number 3 | June 1983 | Pages 380-387
Technical Paper | New Directions in Nuclear Energy with Emphasis on Fuel Cycles / Chemical Processing | doi.org/10.13182/NT83-A33160
Articles are hosted by Taylor and Francis Online.
During the last 20 yr, several potential physical and chemical head-end procedures for graphite-containing high-temperature gas-cooled reactor (HTGR) fuel elements were investigated. In contrast to the principle that the introduction of moderator material into reprocessing should be avoided by all means, with HTGR fuel elements, which consist of ∼95 wt% graphite (moderator material), the primary objective is to remove the bulk of graphite from heavy metals and the fission products. For this purpose, the feasibility of the fluidized bed burning of crushed graphite material has been demonstrated and developed to an advanced stage. If 14C retention is necessary, the CO2 of the burner off-gas can be converted to a solid physical state by fixation of CO2 as CaCO3. Because of the high carbon inventory of the ocean associated with operative dilution effects, controlled dumping of CaCO3 on the deep sea ocean floor could represent safe ultimate disposal