Author Question: Barriers that will provide protection from the useful beam are: control area control booth ... (Read 34 times)

tiffannnnyyyyyy · **on:** Jul 17, 2018

Barriers that will provide protection from the useful beam are:

control area
control booth
secondary barrier
primary barrier

Question 2

The amount of distance between a part and the image receptor is known as:

source-to-object distance
source-to-image distance
object-to-image distance
exposure index

31809pancho · **Reply #1 on:** Jul 17, 2018

Answer to Question 1

primary barrier

Rationale: Primary barriers protect from the useful beam. Primary barriers are any surface that may be struck by the beam, including lead walls and doors.

Answer to Question 2

object-to-image distance

Rationale: Object-to-image receptor distance is OID. Increased OID contributes to part magnification which is destructive to image detail. The general rule is to maintain the part as close to the IR as possible.