|
1
|
|
|
2
|
|
|
3
|
|
|
4
|
- By the end of this unit, you will:
- Understand the threat characteristics of radiological WMDs.
- Identify types of harm that radiological WMDs may cause First
Responders.
- Describe the uses and limitations of PPE at radiological emergencies.
- List First Responder protective actions at radiological WMD incidents.
|
|
5
|
- Identify Responder Issues
- From the video, determine the following:
- Team 3 - Threat Characteristics
- Team 4 - Types of Harm
- Team 1 - PPE Considerations
- Team 2 - First Responder Protective Actions
|
|
6
|
|
|
7
|
- Threat Characteristics
- Possible internal emitters
- Possible penetrating radiation
- Toxicity, corrosivity, etc.
|
|
8
|
|
|
9
|
- Personal Protective Equipment (PPE)
- Structural Firefighter Protective Clothing (SFPC)
- Self-Contained Breathing Apparatus (SCBA)
|
|
10
|
|
|
11
|
|
|
12
|
|
|
13
|
|
|
14
|
|
|
15
|
|
|
16
|
|
|
17
|
- Acute exposure
- 100 rem, short time
- Acute radiation syndrome
- Reproductive effects
- Fetal Exposure
- Skin Burns
|
|
18
|
- Skin Burns Chernobyl Fire Fighters
|
|
19
|
|
|
20
|
- According to the ERG - how can you protect against external radiation
exposure?
|
|
21
|
|
|
22
|
|
|
23
|
- Which types of radiation present the greatest risk as internal
emitters? Explain.
- ___Alpha ___ Beta ___ Gamma ___ None
- Check the types of radiation that can be effectively blocked with SFPC.
- ___Alpha ___ Beta ___ Gamma ___ None
- 3. How can we limit our exposure to gamma radiation?
|
|
24
|
- Which piece of PPE provides the most important protection when a
radioactive source may be present?
Why?
- ___ Helmet ___ Coat / Pants ___
SCBA ___ Boots ___ Gloves
- Decontamination is rarely necessary after working at an incident where a
radiological material was present.
Explain.
- ___True ___ False
|
|
25
|
- Establish command
- Isolate / Assess
- Evaluate rescue
- Decontaminate
- Call for technical assistance
|
|
26
|
|
|
27
|
- Low level radiation:
- 330 feet (downwind) for large spills;
- 1000 feet (in all directions) for fires (see Guide 161)
- Low to moderate level radiation:
- 330 feet (downwind) for large spills;
- 1000 feet (in all directions) for fires (see Guide 162)
- Low to high level radiation:
- 330 feet (downwind) for large spills;
- 1000 feet (in all directions) for fires (see Guide 163)
- How will you know the level of radiation involved in an emergency
response situation?
|
|
28
|
- Canberra Mini-Radiac 500
- Rate meter and dosimeter
- Weight- 9.5 oz
- Small enough to easily be worn
- Will be placed on all emergency apparatus
|
|
29
|
- Personal radiation monitor designed for the needs of first responders
- Measures and displays radiation dose rate and total dose
- Presettable two level audio and visual alarms (vibrating alarm optional)
- Designed to operate in extremes of temperature, shock, humidity, dust,
immersion and radiation
- Large, easy-to-read backlit LCD display
- Intuitive six button user interface
- Operable/readable by personnel in fire fighting or HAZMAT protective
gear
- Uses standard AAA batteries
- Low life cycle costs due to calibration stability and automatic self
calibration
- Stay Time display shows time remaining to dose alarm
- Source finder mode
|
|
30
|
- Risk vs. Benefit
- Clues to Survivability
- Limiting Exposure
- Decontamination
|
|
31
|
- As
- Low
- As
- Reasonably
- Achievable
|
|
32
|
|
|
33
|
- Time
- Limit the time you spend near the
- source
- The shorter the time in a radiation
- field, the less the radiation exposure
- Work quickly and efficiently
- Rotating team approach can be used to keep individual radiation
exposure to a minimum
|
|
34
|
|
|
35
|
- Distance
- Increase the distance between
- yourself and the source
- The farther a person is from the source of radiation, the lower the
dose
- Doubling the distance will quarter the dose of radiation (Inverse
Square Law)
- Do not touch radioactive materials, use shovels, brooms etc., to move
materials
|
|
36
|
|
|
37
|
- Shielding
- Although not always practical in
- emergency situations, shielding
- offered by barriers can reduce
- radiation exposure
- Alpha cannot penetrate unbroken skin or paper
- Beta is stopped by aluminum foil or clothing
- Gamma rays require dense materials such as lead, earth, concrete, or
steel
|
|
38
|
- Technical Assistance?
- Haz Mat
- CHEMTREC
- Industry
- Nuclear medicine department
- Laboratories
- Veterinary facilities
- Universities
|
|
39
|
- Additional technical assistance
- Nuclear Regulatory Commission
- Department of Energy
- Public Health Service
- EPA
- FBI*
- Review case study - First Responder Protective Actions - Team 2 SM 3-5
|
|
40
|
- Expanded Information Section: Unit 3
|
|
41
|
|
|
42
|
|
|
43
|
|
|
44
|
|
|
45
|
|
|
46
|
|