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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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.
David G. Coles, Fernando Bazan
Nuclear Technology | Volume 56 | Number 2 | February 1982 | Pages 226-237
Technical Paper | Radioactive Waste Management | doi.org/10.13182/NT82-A32850
Articles are hosted by Taylor and Francis Online.
Both crushed (150- to 300-μm) and cored (1.8-mm-diam) samples of SYNROC have been leached with single-pass continuous-flow leaching equipment. Crushed samples of cesium-hollandite were also leached in a similar experiment. Temperatures used were 25° and 75°C and leachates were 0.03 N NaHCO3 and distilled water. Leaching rates from SYNROC-C were ranked cesium >strontium ≥ calcium >barium >zirconium. A comparison of leaching rates is made between crushed SYNROC, cored SYNROC, and Pacific Northwest Laboratory 76-68 glass beads. This comparison depends on how the surface areas are determined for each sample. Based on geometric surface areas for SYNROC cores and glass beads, cesium leach rates from SYNROC compare well with both sodium and neptunium leached from the glass. The other elements leached from SYNROC are lower than sodium and neptunium leached from glass. They also vary for each element while glass shows nearly the same leach rate for both sodium and neptunium.
