Chapter 5: Radiation Monitoring

Question 1

• relies on the ability of ionizing radiation to affect a density change on the film emulsion
  amount of dose received by badge is a function of the degree of film blackening that takes place on surface of the film emulsion that lies under various forms of attenuating filters, such as tin or copper
  monitor over extended period of time, inexpensive and reliable
  provide permanent record

Answer 1

Film badge

Question 2

• functional component is lithium fluoride
  readings are made by heating the lithium fluoride chip – once heated it is destroyedmonitor over extended period of timeno permanent record

Answer 2

TLD

Thermoluminescent dosimeter

Question 3

Thermo =

Answer 3

heat

Question 4

luminescent =

Answer 4

light

Question 5

immediate results
ionizing radiation to ionize gas chamber – discharges electrode
short term monitoring – no permanent record
prone to inaccurate readings because of rough handling
can be reused

Answer 5

Pocket Dosimeter

Question 6

• utilizes aluminum oxide detector
  laser light reads sensing material
  filters made of aluminum, tin and copper
  permanent record

Answer 6

OSL – Optically Stimulated Luminescence

Question 6

Occupation exposure annual dose is

Answer 6

50 mSv

Question 7

fetus monthly exposure is

Answer 7

0.5 mSv

Question 8

entire gestation is how much

Answer 8

5.0 mSv

Question 9

indicates below minimum measurable radiation

Answer 9

“M”

Question 10

does nothing to protect you, just measures radiation level

Answer 10

Dosimeter

Question 11

Most sensitive to least sensitive

Answer 11

-Pocket
- OSL
- TLD
- Film badge