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approved equipment. determine the appropriate type of equipment for specific application by consulting the respirator manufacturer. observe the respirator use limitations specified by niosh/msha or the manufacturer. high airborne concentrations may necessitate the use of self contained breathing apparatus...
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double scattered protons in a [...] ct–defined geometry." the researchers used a "single pencil beam" to create a "double scatter system," thus bypassing a difficulty that had stopped previous research teams from creating the necessary radiation dosage or field size. then, the team applied the new apparatus...