When Doors to Radiographic and Fluoroscopic Rooms Are Closed During

question 23

Multiple Choice

When doors to radiographic and fluoroscopic rooms are closed during radiation exposures,a substantial degree of protection is provided for persons in areas adjacent to the room door.This is because in most facilities room doors have attenuation for diagnostic energy x-ray equivalent to that provided by _______ mm of lead.

• A)0.2
• B)0.4
• C)0.6
• D)0.8

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Definitions:

Copy Machines

Devices designed for reproducing documents and images rapidly by scanning the original and printing copies.

Thundercloud Positive Charge

The concept refers to the distribution of electrical charges within a thundercloud, where typically the top of the cloud holds a positive charge while the bottom is more negatively charged, contributing to lightning formation.

Lightning Bolt

A powerful discharge of electricity that occurs during a thunderstorm, connecting the earth and a cloud or between two clouds.

Nuisance Static Charges

Static electric charges that develop on objects when it is not desirable for the object to become charged.