Introduction to Health Physics, Fifth Edition (A & L Allied Health) by Thomas E. Johnson

Author:Thomas E. Johnson [Johnson, Thomas E.]
Language: eng
Format: azw3
Publisher: McGraw-Hill Education
Published: 2017-05-22T04:00:00+00:00

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Respirator Use

According to ALARA principles, the TEDE must be minimized. This principle must be considered when a worker is in an area of high radiation and high airborne radioactivity. Wearing a respirator can offer protection against inhalation of the airborne activity. However, wearing a respirator decreases the worker’s efficiency and increases the time necessary to complete a job by about 20–25%. Thus, the decision about whether or not to use respiratory protection depends on the actual levels of atmospheric activity and radiation. These relationships are illustrated by the following examples.

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