Wednesday, March 23, 2011

Damage Control Class-CBR

With the first half of my damage control class complete it was time to move on to the chemical, biological and radiological portion. Modern warships are built to withstand these types of threats. Navy personnel need to be trained on how to operate under unique and potentially very dangerous situations. The best option is to seal the ship and move out of the area but that may not always be possible. The main problems start when the materials enter the skin of the ship.

The navy has many different chemical tests and equipment that can indicate the presence of an agent. For chemical and biological we can test either the air or questionable liquids. Once identified these can either be removed or isolated. Treatments vary based on the specific agent; nerve, blood, blister, choking and rioting. The main concern are nerve agents because they are most likely to kill, the others are generally used to create casualties.

Nuclear weapons and radiation are another aspect dealt with caution. This topic was more interesting to me with some background in biotechnology. Learning about the different types of radiation and shielding in addition to the fireball and electromagnetic pulse (EMP) gave me a new perspective on the topic. The proper protective equipment (PPE) is emphasized. From a supply perspective, it is critical to maintain correct inventories and replace outdated items. Gear has different expiration dates based on use, storage and care.

Even the best protective gear can only last so long though and there is no way to protect yourself from radiation. Radiation has a cumulative effect and once a certain level is reached a human will not survive. The Navy measures this amount in rads (R), using equipment similar to a Geiger Counter. The only solution to this exposure problem is too establish shifts in deep shelters that permit key personnel to be replaced before permanent damage results. This doubles the amount of time that can be used to leave the area.

No matter what threat is being faced, the Navy has well established regulations for decontamination. There are several procedures to remove hazards without exposing the crew but eventually personnel will need to exit the ship. This exposes them to the offending agent. That agent must be removed prior to reentering the skin of the ship. We were able to don the protective gear, perform various tests using actual equipment and observe the decontamination procedure during one of the last days of class.

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