C620 Intro to Radiation Detection

Question 1

What is radiation?

Answer 1

energy in motion, in the form of particles and/or electromagnetic waves.

Question 2

Has enough energy to strip atoms and molecules from the tissue.

Answer 2

Ionizing

Question 3

Does not have enough energy to alter chemical bonds within substances or the human body.

Answer 3

Non-ionizing

Question 4

The most commonly used unit for measuring radiation dose i.e., the amount of energy you absorb)

Answer 4

Rem

Question 5

One one-thousandth (1/1,000) of a rem.

Answer 5

Millirem

Question 6

One one-millionth (1/1,000,000) of a rem.

Answer 6

Microrem

Question 7

What is a Dose?

Answer 7

The amount of biological damage (health effects) produced by radiation

Question 8

What is a Dose Rate?

Answer 8

The rate at which you receive the radiation dose over a period of time

Question 9

What does ALARA stand for?

Answer 9

As Low As Reasonable Achievable

Question 10

What are the 3 techniques of ALARA?

Answer 10

Time, distance, shielding

Question 11

What is the purpose of the CBP Radiation
Detection Program?

Answer 11

To detect and prevent illicit radioactive materials from entering the United States or from being moved away from the border areas within the United States.

Question 12

How does CBP measure Radiation dose rates?

Answer 12

There are many ways of measuring radiation, but CBP uses rem (R), millirem (mR), and microrem (uR).

Question 13

What are the CBP occupational dose limits?

Answer 13

Not more than 100 mR/year and not more than 50 uR/hour

Question 14

Improvised Nuclear Devices (INDs)

Answer 14

Use nuclear materials and require sophisticated skills to build.

Question 15

Radiological Dispersal Devices (RDDs)

Answer 15

or “dirty bombs,” use conventional explosives or alternative dispersal devices along with radiological materials.

Question 16

Radiological Exposure Device (REDs)

Answer 16

Radiation exposure devises utilize a hidden sealed source. The aim is to expose a unsuspecting victims) to radiation over time.

Question 17

_____ pose the greatest risk to CBP

Answer 17

RDD’s (dirty bomb)

Question 18

CBP uses three different radiation detection devices to screen for radiation at ports of entry:

Answer 18

• Radiation Portal Monitors (RPM)
• Personal Radiation Detectors (PRD)
• RadSeeker

Question 19

Who must be contacted for all neutron alerts?

Answer 19

LSS-TC

Question 20

What type of radiological device are terrorists most likely to use?

Answer 20

An RDD (also known as a dirty bomb).
It does not require as much technical knowledge or resources as an improvised nuclear device
(IND), but the psychological effect would be as great.

Question 21

What are some examples of commercial products which emit normal radiation?

Answer 21

Ceramic tiles, bananas, kitty litter, potash, etc.

Question 22

What are the 4 principles of the Radiation
Detection Program Directive?

Answer 22

• All officers issued a PRD are required to carry it while on duty (2.4 and 2.5).
• Detain person or item when alarm is activated. (6.1.4)
• Verify the alarm and locate the source (6.1.5)
• All alerts must be resolved per CBP Radiation
  Directive (6.1.3)

Question 23

What is the required procedure for a neutron alert?

Answer 23

-Determine the source
-confirm the source
-SIN
-contact LSS-TC.

While there are some very rare pieces of legitimate equipment that contain sources that emit neutrons, CBP never assumes legitimacy without documentation and concurrence from LSS-TC.