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Exam 7 > P700c intro to radiation > Flashcards

P700c intro to radiation Flashcards

0
Q

Cbp radiation detection program was created to detect and identify

A

Materials

Commodities

Components

3 associated with development, deployment, delivery WME

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1
Q

Cbp radiation detection program

A

To prevent and detect elicit radioactive sources from entering the country and moving beyond the border

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2
Q

What is radiation

A

Energy in motion either as particles or electromagnetic waves

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3
Q

What are the two types of radiation?

A

Non ionizing

Ionizing

Both occur naturally or man made

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4
Q

What is the difference between ionizing and non ionizing radiation

A

Energy levels

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5
Q

Which radiation has much higher energy level

A

Ionizing

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6
Q

Examples of non ionizing radiation we encounter every day

A 
Visible lights
Microwaves
Infrared
Radio waves
Laser
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7
Q

Examples of common source of naturally occurring ionizing radiation

A

Cosmic radiation
Terrestial radiation
Food items( from diet)
Radon

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8
Q

Does non ionizing radiation have enough energy to change atomic structure?

A

No

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9
Q

Does ionizing radiation have enough energy to change atomic structure

A

Yes

Can cause damage to DNA in humans

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10
Q

What is radioactivity

A

Unstable atoms trying to become stable by emitting energy through radioactive decay

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11
Q

Radioactive materials

A

Source of ionizing radiation CBP is most concerned about

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12
Q

Atomic structure

Atoms are made up of

A

Protons( positive charge)
Neutron( neutral)
Electron ( negative charge)

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13
Q

What is an isotope

A

Atoms of the same element with different quantities of neutrons

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14
Q

Types of ionizing radiation

A

Alpha particles
Beta particles
Gamma rays
Neutron particles

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15
Q

Which type of radiation can enter body through ingestion, inhalation, open wounds

A

Alpha and beta radiation

16
Q

Which is the most dangerous kinds of radiation

A

Gamma and neutron

17
Q

Who must be contacted when neutron alert is confronted

A

Laboratory and scientific services

National Law enforcement communications center

18
Q

Radiation measurements

A 
Rem
Millirem(1,000)
Microrem(1,000,000)
Dose( total amount of exposure)
Dosage rate( exposure based on time)
19
Q

How many millirems of radiation are humans exposed to annually

A

360

Cosmic sources
Terrestial sources 
Diet
Radon
Human beings
Masonry
20
Q

What is the acceptable mrem limit for cbp personel a year

A

100 mRem

Cbp employees should not be exposed more than 50 urem( microrem) per hour on a continuos basis

21
Q

Two types of radiation doses that will damage the human body

A

Chronic : small doses of radiation received over a long period of time

Acute: large doses of radiation receiving a short period of time

22
Q

What is ALARA

A

As low as reasonably achievable

23
Q

What are the three factors to consider when practicing ALARA

A

Time
Distance
Shielding

24
Q

Radiation exposure practices

A

Identify and use available shielding

Practice good hygiene

Do not handle material needlessly

Practice ALARA

25
Q

Where can terrorist acquire radiological materials from

A 
Research facilities
Universities
Medical equipment
Medical isotopes
Industrial facilities
Radiographic sources
Borehole survey sources
Industrial sterilizers
26
Q

What are INDs

What are RDDs

A

Improvised nuclear devices (Nuclear material and require sophisticated skills to build)

Radiological dispersal devices ( dirty bombs, use conventional explosives or dispersal devices with radiological materials

27
Q

Radiation detection program

A

Screen 100% in bound traffic

Physical inspection of all traffic is unrealistic

Radiation detection devices scan most cargo

28
Q

Legitimate commodoties

A

Naturally occurring radioactive isotopes (NAT)
Isotopes used in industry (IND)
Isotopes used in medical diagnosis (MED)

29
Q

If you receive a radiation alert what should you do

A

SIN

All radiation alerts must be resolved

All neutron alerts LSS must be contacted

30
Q

Radiation detection layered approach

Cbp uses three devices, what are they

A

RPM
PRD
RIID

31
Q

RPM detect very small amounts of radiation in primary, must all alerts be resolved

Yes or no

A

Yes, must be secondary for complete resolution

32
Q

PRD detect gamma and x ray?

A

Yes, indicate amount of radiation on scale 0-9

33
Q

What does the RIID do

A
  • Detects, locates, identifies radiation
  • Gamma and neutron
  • Facilitates resolution of PRD alert
34
Q

What does LSS do

A
  • Provide technical assistance and guidance
  • Must provide TAQ
  • May request isotope info from RIID
35
Q

Radiation detection and program diractive

A

Provides guidance on program

Describes procedures to follow to resolve radiation alarms

All alarms must be resolved per cbp radiation directive

36
Q

Responding to neutron alarm

A

Isolate source, establish perimeter

Confirm presence of neutron 6 counts per second

Contact LSS through NLECC

37
Q

Prd alert

A

Isolate source

9 to 8

Establish perimeter

If documentation, or reading not consistent with common innocent radiation sources checklist contact LSS through NLECC

LSS determines whether hazardous radiological condition exist

38
Q

Event documentation

A
  • TAQ
  • IOIL
  • port management, sector, ICE, NTC, headquarters and situation room

Exam 7 (11 decks)

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