Rad Pro Chapter 6 Vocab Flashcards Preview

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Flashcards in Rad Pro Chapter 6 Vocab Deck (34):
1

Agreement states

Those dates I have agreements with the Nuclear Regulatory Commission to take the responsibility to use radiation protection guidelines through the states department of health

2

ALARA

As low as reasonably achievable

3

Bone marrow dose

A measure of the radiation that has been absorbed into the patient's bone marrow

4

Controlled area

An area occupied by radiation personnel

5

Cumulative timing device

A device that presets The on time for the tube to only five minute increments

6

Deadman type

Exposure control switch that is either a footpedal or hand switch

7

Dose

Amount of radiation exposure

8

Dosimetry

Measurement of ionizing radiation doses to personnel

9

Early effect of radiation

The response of human cells exposed to radiation within minutes, days, or weeks of exposure

10

Effective dose limit

The lowest dose of radiation that will maintain health with no ill effects

11

Entrance skin exposure (ESE)

A measure of the radiation to the patient's skin at the skin entrance surface. Also known as the skin dose

12

Film Badge

A type of dosimeter consisting of radiation dosimetry film to determine the amount of exposure personnel have received

13

Gonadal dose

A measure of the radiation to the patient at the site of the patients gonads

14

Intermittent fluoroscopy

The procedure of periodically activating the fluoroscopic tube rather than having the tube continuously activated. This reduces patient exposure and prolongs the life of the tube

15

Inverse square law

The intensity of radiation at a given distance is inversely portional to the square of the distance of the object from the source

16

Ionization chamber

A tube containing a positive and negative electrode that are charged before use. One electrode is stationary, the other is moving. Exposure to ionization is determined by measuring the movement of the moving electrode

17

Joint commission

The accrediting body for radiographic facilities

18

Late effect of radiation

The response of human cells are exposed to radiation months to years after exposure

19

Lead equivalent

Then amount of material that is needed to meet the same requirements as a lead barrier

20

Optically stimulated luminescence (OSL) dosimeter

A type of dosimeter utilizing aluminum oxide crystals to calculate the amount of personal exposure

21

Personnel monitors / dosimeters

Device is used to measure radiation doses

22

Pocket dosimeters

A type of dosimeter that uses an ionization chamber to determine the level of exposure by personnel

23

Primary protective barrier

A fixed barrier that is located perpendicular to the line of travel of the primary x-ray beam

24

Protective tube housing

The lead lined metal covering of the x-ray beam that serves to reduce leakage radiation

25

Radiation protection

Method used to limit exposure to radiation

26

Scattered radiation

Radiation that is dissipated away from the point of origin

27

Secondary protective barrier

A fixed barrier that is located parallel to the line of travel on the primary x-ray beam

28

Skin dose

A measure of radiation to the patient's skin at the skin entrance surface. Also known as the entrance skin exposure.

29

Thermoluminescent dosimeter (TLD)

A type of dosimeter containing the lithium fluoride or calcium fluoride crystals to calculate the amount of personal exposure

30

Time of occupancy (T)

The amount of time a hospital area is occupied by people

31

Uncontrolled area

An area occupied by nonradiation personnel

32

Use (U)

The percentage of time in which the x-ray beam is energized and directed towards a particular wall

33

Useful beam

The primary x-ray beam

34

Workload (W)

The amount of activity of the x-ray machinery