Page 71 - Sayuru 40 full set
P. 71
Sayurusara 2019 December 69
5. What are Radiological weapons? The Area Affected
A radiological attack is the spreading of Most dirty bombs and other RDDs would
radioactive material with the intent to do harm. have very localized effects, ranging from less than
Radioactive materials are used every day in a city block to several square miles. The area over
laboratories, medical centers, food irradiation which radioactive materials would be dispersed
plants, and for industrial uses. If stolen or otherwise depends on factors such as:
acquired, many of these materials could be used in a
"radiological dispersal device" (RDD). i. Amount and type of radioactive
material dispersed.
i. How an RDD Might be Used ii. Means of dispersal (e.g. explosion,
It is very difficult to design an RDD that spraying, fire).
would deliver radiation doses high enough to iii. Physical and chemical form of the
cause immediate health effects or fatalities in radioactive material. For example, if the
a large number of people. Therefore, experts material is dispersed as fine particles,
generally agree that an RDD would most it might be carried by the wind over a
likely be used to: relatively large area.
iv. Local topography, location
a. Contaminate facilities or places of buildings, and other landscape
where people live and work, disrupting lives characteristics.
and livelihoods. v. Local weather conditions.
b. Cause anxiety in those who think they iii. What Happen to lives
are being, or have been, exposed.
Immediate Impact to Human Health Most
ii. What Radiological Dispersal Devices injuries from a dirty bomb would probably occur
(RDDs) Do? from the heat, debris, radiological dust, and force
of the conventional explosion used to disperse the
radioactive material, affecting only individuals close
to the site of the explosion. At the low radiation
levels expected from an RDD, the immediate health
effects from radiation exposure would likely be
minimal.
Health effects of radiation exposure are determined
by the:
a. Amount of radiation absorbed by the
body.
b. Radiation type.
c. Means of exposure—external or
internal (absorbed by the skin, inhaled, or
ingested).
d. Length of time exposed.
The health effects of radiation tend to be directly
proportional to radiation dose. If a reasonable
estimate can be made of a person’s dose, a lot is
known about the health effects at that dose.
Lieutenant SASC Warnakulasooriya
NRX 3454
2IC RABS Task team II & 4R 4
SLNS Buwaneka
5. What are Radiological weapons? The Area Affected
A radiological attack is the spreading of Most dirty bombs and other RDDs would
radioactive material with the intent to do harm. have very localized effects, ranging from less than
Radioactive materials are used every day in a city block to several square miles. The area over
laboratories, medical centers, food irradiation which radioactive materials would be dispersed
plants, and for industrial uses. If stolen or otherwise depends on factors such as:
acquired, many of these materials could be used in a
"radiological dispersal device" (RDD). i. Amount and type of radioactive
material dispersed.
i. How an RDD Might be Used ii. Means of dispersal (e.g. explosion,
It is very difficult to design an RDD that spraying, fire).
would deliver radiation doses high enough to iii. Physical and chemical form of the
cause immediate health effects or fatalities in radioactive material. For example, if the
a large number of people. Therefore, experts material is dispersed as fine particles,
generally agree that an RDD would most it might be carried by the wind over a
likely be used to: relatively large area.
iv. Local topography, location
a. Contaminate facilities or places of buildings, and other landscape
where people live and work, disrupting lives characteristics.
and livelihoods. v. Local weather conditions.
b. Cause anxiety in those who think they iii. What Happen to lives
are being, or have been, exposed.
Immediate Impact to Human Health Most
ii. What Radiological Dispersal Devices injuries from a dirty bomb would probably occur
(RDDs) Do? from the heat, debris, radiological dust, and force
of the conventional explosion used to disperse the
radioactive material, affecting only individuals close
to the site of the explosion. At the low radiation
levels expected from an RDD, the immediate health
effects from radiation exposure would likely be
minimal.
Health effects of radiation exposure are determined
by the:
a. Amount of radiation absorbed by the
body.
b. Radiation type.
c. Means of exposure—external or
internal (absorbed by the skin, inhaled, or
ingested).
d. Length of time exposed.
The health effects of radiation tend to be directly
proportional to radiation dose. If a reasonable
estimate can be made of a person’s dose, a lot is
known about the health effects at that dose.
Lieutenant SASC Warnakulasooriya
NRX 3454
2IC RABS Task team II & 4R 4
SLNS Buwaneka
