UNIT 2

Question 1

4 types of Personnel monitoring devices

Answer 1

film badge
optical stimulated thermoluminescent dosimeter (OSL)
thermoluminescent dosimeter
dosimeter

Question 2

4 area monitoring devices

Answer 2

ionization chamber type
proportional counter
geiger-muller counter
calibration instruments

Question 3

exposure means

Answer 3

ionization in air

Question 4

absorbed into the person is

Answer 4

dose

Question 5

personnel monitoring devices measure

Answer 5

exposure

Question 6

sensitivity for film badge

Answer 6

10mR- 500rem

Question 7

Types: collar or ring
Monthly
Detects xray, gamma, beta

Answer 7

film badge

Question 8

film badge filters are

Answer 8

aluminum (comparison for soft tissue)
copper (comparison for bone)

Question 9

the darker the _____ on a film badge determines how much exposure

Answer 9

density

Question 10

minimal =

Answer 10

> 10mR

Question 11

kept in radiation free area
transport (kept in a box)
need to be kept in radiation free areas

Answer 11

control badge

Question 12

wear collar and outside apron
keep safe from heat, fluid, humidity
badge incident report

Answer 12

badge maintenence

Question 13

monthly: use
components: plastic holder, aluminum oxide (crystals), filters
read: laser lights
sensitive: humidity, heat, fluids

Answer 13

OSL Optically stimulated thermoluminescent dosimeter

Question 14

1 mrem- 1000 REM

Answer 14

OSL

Question 15

more sensitive and has more measurement than film badge

Answer 15

OSL

Question 16

Use: 1-3 months
components: plastic holder, lithium fluroide crystals
reading: TLD analizer & radiation exposure= intensity of light

Answer 16

TLD Thermoluminescent dosimeter

Question 17

5mR-1000’s rem

Answer 17

TLD

Question 18

not as sensitive as an OSL but more than film badge

Answer 18

TLD

Question 19

most sensitive type of dosimeter

Answer 19

pocket dosimeter

Question 20

Detects gamma radiation
Ionization chamber
measures exposure (in air)
Personal record kept
Immediate feedback

Answer 20

pocket dosimeter

Question 21

measures exposure in air

Answer 21

ionization chamber

Question 22

self reading dosimeters have a built in ____

Answer 22

electrometer

Question 23

4 area monitoring devices

Answer 23

ionization chamber type
proportional counter
geiger-muller counter
calibration instruments

Question 24

Rate meter (measures exposure over time)
gas-filled ionization chamber
measures - gamma, xray, beta
1 mR/hr-1000s R/hour
used by medical physicists and engineers

Answer 24

Ionization chamber type

Question 25

1 mRhr-1000s R/hr

Answer 25

ionization chamber type

Question 26

lab setting only
measures alpha and beta
do not see this in radiography
low level radioactive contaminatioons

Answer 26

proportional counter

Question 27

detects: electrons from radioactive nuclei
xray, gamma, beta
Nuclear medicine departments: lost sources
audible alarms (like metal detector)

Answer 27

Geiger-Muller counter

Question 28

ionization chambers: cutie pie & dosimeters
Rate meters
Equipment output
HOW MUCH RADIATION FROM EQUIPMENT

Answer 28

Calibration Instruments

Question 29

which is most sensitive?

Answer 29

pocket dosimeter

Question 30

which has self journal?

Answer 30

pocket dosimeter

Question 31

3 months?

Answer 31

TLD

Question 32

1 month usage?

Answer 32

film badge, OSL

Question 33

which most common nuclear?

Answer 33

Geiger-Muller

Question 34

lab settings?

Answer 34

proportional counter

Question 35

output radiographic unit?

Answer 35

calibration instrument

Question 36

lost source?

Answer 36

Geiger-Muller

Question 37

alpha beta?

Answer 37

proportional counter

Question 38

filters do?

Answer 38

measure penetration

Question 39

ingrediants?

Answer 39

copper (bone like) aluminum (soft tissue like)