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Known Volume Air Sampling Pump.

McCullough JE; Peterson A
NTIS: PB/266-831 Available for Reference At Bureau Libraries :39 pages
The purpose of this program was to design and develop a known volume air sampling pump for use in measuring the amount of radioactve material in the atmosphere of an underground uranium mine. The principal nuclear radiation hazard to underground uranium mines comes from the mine atmosphere. Daughter products of 222-radon are inhaled by the miners, resulting in a relatively high lung cancer rate among these workers. Current exposure control practice employs spot sampling in working areas to measure working level values. Currently available personal air sampling pumps fail to deliver known volumes of air under widely changing differential pressures. A unique type of gas pump known as the scroll compressor, developed by Arthur D. Little, Inc., that has no valves and few moving parts is expected to provide a practical, efficient, and dependable air pump for use in dosimeters. The three deliverable known volume air sampling pumps resulting from this work incorporate a scroll pump, drive motor, speed control electronics, and battery pack in a container suitable for attachment to a miner's belt.
Publication Date
Document Type
CP; Final Contract Report;
Fiscal Year
NTIS Accession No.
NTIS Price
Identifying No.
OFR 81-77
NIOSH Division
Source Name
NTIS: PB/266-831 Available for Reference At Bureau Libraries
Performing Organization
A. D. Little, Inc.
Page last reviewed: October 29, 2021
Content source: National Institute for Occupational Safety and Health Education and Information Division