Chapter 9 Book Questions

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1

Which of the following is not necessary for x-rays to be produced?

a source of electrons

rapid particle acceleration

a source of protons

instantaneous deceleration

a source of protons

2

For pair production to occur, the energy of the incoming x-ray photon must be at least:

1.02 MeV

3

The interaction of x-rays with matter that constitutes the greatest hazard to patients in diagnostic radiography is:

photoelectric interaction

4

The unit used to measure the amount of energy absorbed in any medium is the:

radiation absorbed dose (rad)

5

The maximum accumulated whole-body dose for a 35-year-old occupational worker is:

35 rem

6

According to the law of Bergonie and Tribondeau, the characteristics that determine the sensitivity of a cell to radiation are:

mitotic activity and structure and function of the cell.

7

The intensity of radiation from a radiographic tube was 35 mR at a distance of 2.5 m from the tube. What would the intensity be at a distance of 4 m from the tub, all other factors remaining the same?

14mR

8

Which of the following is not a component of an optically stimulated luminescence (OSL) dosimeter?

exposure meter

plastic blister pack

aluminum oxide strip

metal fibers

exposure meter

9

An exposure of 2 Sv is received. How many rem is this equivalent to?

400 rem

Book shows 1 Sv +100 rem

10

Lead absorbs x-rays through the process of ________.

the Compton effect.