Personnel Monitoring Device

Question 1

Types of PMD’s

Answer 1

Active and Passive Dosimeters

Question 2

Types of of Active Dosimeters

Answer 2

Pen Dosimeter, Electronic Personal Dosimeter (EPD)

Question 3

Types of Passive Dosimeters

Answer 3

Film Badge, Thermoluminiscent Dosimeter (TLD)
, Optically Stimulated Luminiscence (OSL)

Question 4

Occupational Radiation Monitoring

It is required when there is any likelihood
that an individual __________________ of the recommended dose limit.

Answer 4

Will receive more than 1/10

Question 5

THE OCCUPATIONAL RADIATION MONITOR
______________ AGAINST EXPOSURE!

Answer 5

OFFERS NO PROTECTION

Question 6

Used in a hazardous environment, such as
a nuclear reactor or other places with a
high chance at higher radiation levels.

• Designed to let the wearer know how much
  radiation they have been exposed and are
  often equipped with a notification feature to
  let you know when you are approaching a
  pre-set limit of radiation exposure

Answer 6

Active Dosimeters

Question 7

Used when you are exposed to only low
radiation levels, or only occasionally
exposed to radiation.

• It records the amount of radiation over
  time but is not analyzed in real-time.
• Used in hospitals by personnel who are
  exposed to low level of radiation.
• Used also by miners

Answer 7

Passive Dosimeters

Question 8

• It records the amount of radiation over
  time but is not analyzed in real-time.
• Used in hospitals by personnel who are
  exposed to low level of radiation.
• Used also by miners

Answer 8

Passive Dosimeters

Question 9

Uses LITHIUM FLUORIDE (LiF) with Z=8 in a crystalline form

Answer 9

THERMOLUMINISCENT DOSIMETER (TLD)

Question 10

ADVANTAGES: It is more sensitive and accurate than Film Badge, It can measure as low as 5 mR, and It can be worn for intervals up to 1
year.

• DISADVANTAGE: Expensive than Film Badge.

Answer 10

THERMOLUMINISCENT DOSIMETER (TLD)

Question 11

When HEATED, these excited electrons fall back to their normal state
with the emission of visible light

Answer 11

THERMOLUMINISCEN
T DOSIMETER (TLD)

Question 12

This is worn and handled just as film badges and TLDsand approx. same size.

Answer 12

OPTICALLY STIMULATED LUMINISCENCE
(OSL)

Question 13

One Advantage over TLD: It can measure as low as 1 mR.

• Disadvantage: Expensive than TLDs and Film Badge

Answer 13

OPTICALLY STIMULATED LUMINISCENCE
(OSL)

Question 14

This is worn and handled just as film badges and TLDsand approx. same size.

Answer 14

OPTICALLY STIMULATED LUMINESCENCE
(OSL)