Practice Exam #3 1-11

Question 1

Which of the following statements best describes how an Optically Stimulated
Luminescent Dosimeter (OSLD) works?

Answer 1

Uses aluminum oxide crystal detectors which become excited by ionizing
radiation, and give off light when exposed to either a laser or LED.

Question 2

These are the following advantages of an OSLD dosimeter when compared to a TLD?

Answer 2

1. More accurate
2. Can be read multiple times
3. Has less fade than a TLD

Question 3

Based on the table in 10CFR20.1004(B), what is the quality factor gamma radiation?

Answer 3

1

Question 4

This is one of the major disadvantages of using TLDs.

Answer 4

Dosimeter can only be read once

Question 5

Electronic dosimeters shall be used for entry into High and Very High Radiation
Areas. True or False?

Answer 5

True

Question 6

A self-reading pocket dosimeter is which of the following?

Answer 6

Ion chamber

Question 7

Total Effective Dose Equivalent, TEDE, is the sum of both the internal and external radiation exposure. True or False?

Answer 7

True

Question 8

What action does 10CFR20 require in situations where the body is not irradiated in a uniform field?

Answer 8

1. That a monitoring device be worn on that portion of the body receiving the highest dose.
2. That a method approved by the NRC to implement the use of EDEX be used.

Question 9

The emission of light after the irradiation period is called phosphorescence and is the principle of operation for thermoluminescent dosimeters or TLDs. True or False?

Answer 9

True

Question 10

The weighting factor for the EDEX for the abdomen, including the pelvis, is which of the following?

Answer 10

.50