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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Deep Space: The new frontier of radiation controls
In commercial nuclear power, there has always been a deliberate tension between the regulator and the utility owner. The regulator fundamentally exists to protect the worker, and the utility, to make a profit. It is a win-win balance.
From the U.S. nuclear industry has emerged a brilliantly successful occupational nuclear safety record—largely the result of an ALARA (as low as reasonably achievable) process that has driven exposure rates down to what only a decade ago would have been considered unthinkable. In the U.S. nuclear industry, the system has accomplished an excellent, nearly seamless process that succeeds to the benefit of both employee and utility owner.
S. A. Adeleye, D. A. White, J. B. Taylor
Nuclear Technology | Volume 113 | Number 1 | January 1996 | Pages 46-53
Technical Paper | Material | doi.org/10.13182/NT96-A35198
Articles are hosted by Taylor and Francis Online.
The results are presented of a study of pretreatment methods as possible controls on the buildup (plateout) of cobalt and cesium activity on the inside surfaces of mild and stainless steel piping used to carry radioactive liquors. Coupon specimens of mild steel and Type 304L and 18/13/1 stainless steel piping are treated by contacting with acid and electroetching. Also, the effect on plateout of saturating steel coupons with inactive cobalt is investigated. In addition, the transient effects of pH, concentration changes, and liquid turbulence on untreated surface buildup are presented. Surface treatment is shown to delay activity buildup in certain instances but does not affect the magnitude of overall surface activity. For untreated and treated surfaces, plateout is dependent on solution pH and isotope concentration. The higher the pH and the higher the concentration, the greater the deposition will be. The effects of turbulence cause only a marginal decrease in plateout at each pH level and concentration studied. The steel type has a major effect on the activity picked up. The mild steel specimen shows the greatest activity buildup.
