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Additional info for ALARA Review of the Spallation Neutron Source [Accum Ring, Transfer Lines]

Sample text

2 Induced Activity in Cooling and Fire Protection Water Dose levels referenced this section are extrapolated from the advanced gradient synchrotron (AGS) Booster Final Safety Analysis Report (FSAR). Radioactivity is also produced directly in the closed cooling water system. Indications are that 7Be and 3H are the two long-lived radionuclides that will be produced. Estimates indicate that -50 mCi of 7Be and 10 mCi of 3H will be produced annually for a total volume of water in the cooling system of 5 H 105 cm3.

A-2 4. Do the instruments selected contain the minimum amounts of fluid that could to become contaminated? 5. Are local indicators designed and located to be readable from the entry or outside of the corresponding high-dose-rate cubicle or area, perhaps by the use of mirrors or shield windows? 6. Is this an application that would justify the use of a leaded-glass window, closed-circuit TV system (or the like), or provision for their addition in the future? 7. , it is best not to have the contaminated fluid on the tube side)?

1 CHARACTERIZATION OF RADIATION FIELDS AND POTENTIAL DOSES The principal sources of radiation and induced radioactivity associated with the SNS accumulator ring operation were identified. Potential doses to workers, both those working in the facility or area covered by the project and those working outside or in unrelated areas, have been assessed as appropriate to the stage of the design. 2 SHIELDING All shielding meets the requirements of DOE regulations and applicable ALARA guidelines established for the project.

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ALARA Review of the Spallation Neutron Source [Accum Ring, Transfer Lines]


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