Radiation Protection FINAL EXAM- Questions
and Answers| 100% Solved
What are the 4 types of personnel dosimeters? 1. OSL (Optically Stimulated
Luminescence Dosimeter)
2. Film Badge
3. TLD (Thermoluminescent Dosimeter)
4. Pocket Ionization Chamber
What are the advantages of an OSL? 1. Lightweight, durable, easy to carry
2. Heat, moisture, and pressure will not affect it
3. Offers complete reanalysis
4. Gives readings as low as 10uSv (1mrem) with energies from 5keV to 40MeV
5. Can be used for up to 1 year
What are the disadvantages of an OSL? 1. Cannot be read on day of occurrence if facility
does not have in-house reader
2. Only records exposure in body area where device is worn
What are the advantages of a film badge? 1. Cost efficient
2. Provides permanent legal record of personnel exposure
3. Detects and records large and small exposures
4. Filters can indicate whether exposure was from scatter radiation or primary beam
, 5. Can estimate direction in which radiation came from
What are the disadvantages of a film badge? 1. High temperatures and humidity can cause
film badge to produce fog and inaccurate readings
2. Not as sensitive if energy levels are above or below 50keV
What are the advantages of a TLD? 1. Not affected by humidity or temperature
2. Can be worn for 3 months
3. TLD crystals can be reused which makes it cost effective
What are the disadvantages of a TLD? 1. Does not have ability to have a permanent legal
record of exposure
2. Readings may be lost if not carefully recorded
What are the advantages of a pocket ionization chamber? 1. Small, compact, and easy to
carry
2. Accurate and the most sensitive
3. Immediate exposure readout
What are the disadvantages of a pocket ionization chamber? 1. Expensive
2. Must be calibrated to 0 before use
3. Mechanical shock can cause false high readings
4. No permanent legal record
and Answers| 100% Solved
What are the 4 types of personnel dosimeters? 1. OSL (Optically Stimulated
Luminescence Dosimeter)
2. Film Badge
3. TLD (Thermoluminescent Dosimeter)
4. Pocket Ionization Chamber
What are the advantages of an OSL? 1. Lightweight, durable, easy to carry
2. Heat, moisture, and pressure will not affect it
3. Offers complete reanalysis
4. Gives readings as low as 10uSv (1mrem) with energies from 5keV to 40MeV
5. Can be used for up to 1 year
What are the disadvantages of an OSL? 1. Cannot be read on day of occurrence if facility
does not have in-house reader
2. Only records exposure in body area where device is worn
What are the advantages of a film badge? 1. Cost efficient
2. Provides permanent legal record of personnel exposure
3. Detects and records large and small exposures
4. Filters can indicate whether exposure was from scatter radiation or primary beam
, 5. Can estimate direction in which radiation came from
What are the disadvantages of a film badge? 1. High temperatures and humidity can cause
film badge to produce fog and inaccurate readings
2. Not as sensitive if energy levels are above or below 50keV
What are the advantages of a TLD? 1. Not affected by humidity or temperature
2. Can be worn for 3 months
3. TLD crystals can be reused which makes it cost effective
What are the disadvantages of a TLD? 1. Does not have ability to have a permanent legal
record of exposure
2. Readings may be lost if not carefully recorded
What are the advantages of a pocket ionization chamber? 1. Small, compact, and easy to
carry
2. Accurate and the most sensitive
3. Immediate exposure readout
What are the disadvantages of a pocket ionization chamber? 1. Expensive
2. Must be calibrated to 0 before use
3. Mechanical shock can cause false high readings
4. No permanent legal record
