Actions for Calculation of Airborne Radioactivity Hazard from Machining Volume-Activated Materials [electronic resource].

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Calculation of Airborne Radioactivity Hazard from Machining Volume-Activated Materials [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy. Office of Energy Research, 1997.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
657 Kilobytes pages : digital, PDF file
Additional Creators
Thomas Jefferson National Accelerator Facility (U.S.), United States. Department of Energy. Office of Energy Research, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
When evaluating a task involving the machining of volume-activated materials, accelerator health physicists must consider more than the surface contamination levels of the equipment and containment of loose shavings, dust or filings. Machining operations such as sawing, routing, welding, and grinding conducted on volume-activated material may pose a significant airborne radioactivity hazard to the worker. This paper presents a computer spreadsheet notebook that conservatively estimates the airborne radioactivity levels generated during machining operations performed on volume-activated materials. By knowing (1) the size and type of materials, (2) the dose rate at a given distances, and (3) limited process knowledge, the Derived Air Concentration (DAC) fraction can be estimated. This tool is flexible, taking into consideration that the process knowledge available for the different materials varies. It addresses the two most common geometries: thick plane and circular cylinder. Once the DAC fraction has been estimated, controls can be implemented to mitigate the hazard to the worker.
Report Numbers
E 1.99:jlab-acc-96-05
E 1.99: doe/er/40150-3221
doe/er/40150-3221
jlab-acc-96-05
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Note
Published through SciTech Connect.
01/01/1997.
"jlab-acc-96-05"
" doe/er/40150-3221"
Health Physics Society 1997 Midyear Topical Meeting, San Jose, CA (US), 01/08/1997.
E.T. Marshall; S.O. Schwahn.
Funding Information
AC05-84ER40150
View MARC record | catkey: 14691291