Haz Mat ERP - Add 4 - Radiological Operations. Flashcards
What are four types of ionizing radiation discussed in this bulletin?
a) Alpha particles
b) Beta particles
c) Gamma rays
d) Neutrons.
What are the routes of exposure that a person can be exposed to a hazardous material?
a) Inhalation
b) Ingestion
c) Absorption
d) Penetration/Injection.
Where do women who are declared pregnant OR who are pregnant AND request to operate OUTSIDE of the WARM or HOT ZONE at the time of an incident permitted to operate?
They may ONLY operate in the COLD ZONE.
The Rad 50 carried on the Department apparatus is calibrated to alarm?
1 mR/Hr
It is able to measure radiation levels up to 50 mR/Hr.
What is the normal background radiation RATE for the NYC area?
- 02 mR/Hr to 0.05 mR/Hr
* The average annual dose of radiation people receive from background sources is approx. 360 mR per year.*
When MUST a unit carry the Rad 50?
a) When out of quarters
b) When performing AFID
c) When responding to complaints
d) During the assessment of emergencies and fires.
* Performing MUD, operating at Radiological Incidents/Emergencies
What is a Radiological INCIDENT?
Radiological meter readings are ABOVE background from a LEGITIMATE source AND
the source HAS NOT been released from its container.
The sorce may also be a naturally emitting source.
Readings must be confirmed by a 2nd meter.
What are examples of a Radiological INCIDENT?
a) Occupancies and locations
Medical facilities, research facilities, industry/construction sites.
b) Containers/packages
c) People who received medical radiological treatment
What is a Radiological EMERGENCY?
Involves a source that is OUT OF its container, either accidentally or intentionally.
Meter readings are ABOVE what is expected for a specific location.
Readings MUST be confirmed by a second meter.
What is an RDD?
Radiological DISPERSAL Device.
Dirty bomb
What is a RED?
Radiological EXPOSURE Device
Intended to expose a SPECIFIC person.
What is a RID?
Radiological INCENDIARY Device
Dirty fire
What is a IND?
Improvised Nuclear Device
Upon the release of a Radiological Incendiary Device (RID) , what is the GREATEST dangers?
The GREATEST dangers from a RID is the expanding fire.
Units responding to an IND should not enter the area of radiation detonation for at least?
15 minutes POST detonation.
Radiation fallout from an IND does not occur for approximately 15 minutes AFTER detonation.
When should members operating at a radiological incident be rotated?
Members receiving ABSORBED doses should be rotated at DOSE levels of 5 REM OR when 1 SCBA tank is expended.
If the DISTANCE from the radiological source is _____, the RATE will drop to _____ its original rate?
Doubled and 1/4.
What is the MOST EFFECTIVE way to shield 1st responders from air borne radioactive particles while operating in Warm and Hot Zones?
Ensure units wear the appropriate PPE, ESPECIALLY respiratory protection.
What must each member don when operating at a Radiological Emergency?
Each member must don a DOSIMETER.
The “Hotline” is marked with?
RED “hazardous materials” barrier tape.
The “Hot Zone” is?
Radiation GREATER THAN 2 mR/Hr.
The “Warm Zone” is?
The area which includes the Safe Refuge Area (SRA)
AKA Contamination Reduction Zone (CRZ).
The “Cold Zone” is?
Radiation LESS THAN 2 mR/Hr.
Where is the Command Post established?
In the Cold Zone.
What is the priority for decontamination at a radiological incident/emergency?
a) Patients with LIFE-THREATENING injuries (i.e. injuries that affect ABC’s)
b) Patients that are most severely contaminated BUT ARE NOT symptomatic
c) Discretion should be used to prioritize remaining contaminated patients:
- Pregnant women
- Children
- Senior citizens
- Non-life threatening injuries.
What is the TI?
The Transport Index (TI)
Where is located on a package label?
Located within a RECTANGULAR box in the lower section of the label.
It is not indicated on a PLACARD.
What does a Transport Index indicate?
The MAXIMUM level of radiation at ONE METER from an UNDAMAGED package.
What does the Transport Index apply to?
The TI applies to levels of GAMMA radiation ONLY.
*Readings of alpha or beta particles indicate the package may have been breached and the shielding compromised.
The TI of a package should not exceed?
Should not exceed 10 mR/Hr.
What is the TOTAL TI of a vehicle’s shipment?
May not exceed 50 mR/Hr.
Describe radioactive shipping labels.
- 4”x”4
- Diamond shaped
- Must be labeled with TWO (2) labels affixed to opposite sides of the package.
Describe radioactive warning placards.
- Typically 10”x10”
- Required to be fixed to the FRONT, SIDE and REAR of the carrier
- Number corresponds to a UN ID number
- The number 7, indicates the hazard class, RADIOACTIVE.
Radioactive warning placards are required.
- In vehicles transporting radioactive materials
- On rail freight cars, motor vehicles or trailers
- One or more Yellow III packages
- MORE THAN 1,000 pounds of radioactive materials
