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Flashcards in Radiographic Safety-UR Deck (22):
1

which measure is based on ionization in air?

roentgen

2

Radiation protection guides and radiation exposure records are expressed in which dose unit?

Rems

3

the harmful effects of radiation produced in the cells of living tissue are caused by ..........

ionization

4

Absorption of large amounts of radiation in a short time is classified as

an acute exposure

5

what type of exposure should not be included in the determination of an individual's radiation exposure status?

Medical exposure

6

an exposure to radiation is permissible only when .......

it is impractical to prevent it

7

which occupational dose level of radiation should not be exceeded in 1 year?

5 rems

8

where should yo wear a thermoluminescent dosimeter (TLD)?

between waist and neck on outside of clothing

9

what is required each time a digital alarm dosimeter (DAD) is used by a different radiographer?

reset the DAD to zero

10

the approximate operating voltage of an ionization chamber survey meter is __ to ___ _____

50 to 200 volts

11

What SM-400 full-scale meter sensitivity ranges can be selected?

3mr/hr through 300 mr/hr

12

which procedure is not a function of the end cap on a SM-400?
(A) Protects the thin mylar window on the chamber from damage
(B) Holds the built-in Th-232 check source used for the operational check
(C) Allows adjustment of the zero adjust switch in an area with low radiation
(D)Prevents alpha, beta, and low energy gamma or X-ray radiation from being detected

C. allows adjustment of the zero adjust switch in an area with low radiation

13

What form is posted at the entrance to an exposure room?

AFTO Form 9

14

Which for must be posted inside of an exposure room?

AFTO Form 9E

15

Which form is used with the rope barrier when x-raying in an unshielded area?

AFTO Form 9

16

What does the acronym ALARA stand for?

As low as reasonably achievable

17

Who approves an unshielded area for x-ray inspections?

base medical service

18

Identify the on site survey meter requirements for performing radiographic exposure.

Two meter calibrated within the past 180 days

19

What is the purpose of an X-ray interlock assembly?

Prevent irradiation unless an X-ray-on warning light is connected

20

When using chemical precipitation silver recovery, what action causes silver bromide to settle to the bottom of the tank?

adding a chemical to the solution

21

During the electrolytic silver recovery process, which condition could cause the formation of silver sulfide?

Excessively high electric current

22

What is the most commonly used material in metallic replacement silver recovery cartridges?

Steel wool