WEBVTT

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[Sounds of an Explosion]

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[music playing]

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Tactic 8

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The Measure and Map Mission
Phase 1 Detonation Site and Transect

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The objective of the first phase
is to determine the direction

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of any downwind contamination.

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Local wind at the time of detonation,

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could differ from when first responders

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arrive on scene. So the direction of

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contamination should be confirmed.

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Strike team 1 will determine the on scene

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hazard and possible direction of contamination.

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This team should be equipped with exposure rate

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instruments that can read up to 10 R per hour

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as well as alpha and beta contamination survey meters.

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Strike team one should

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take a few dose rate measurements

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at waist level as they approach the detonation site.

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Starting from 100 meters until they measure 10 R per hour or

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are approximately 20 meters out from the detonation

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point. The team should repeat the measurements

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from at least four different

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directions that span the

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360 degrees around the detonation site to

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determine direction of

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any downwind contamination.

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If an apparent direction of

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contamination is found, the team should make measurements

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for alpha and beta contamination to characterized the

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radioactive material and determine unzone boundaries.

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Strike team two will access the

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magnitude of any potential downwind contamination

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by transecting potential contaminated

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areas approximating 1 kilometer

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downwind. Strike team 2 should be equipped

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with more sensitive exposure rate

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monitors as well as Alpha and Beta

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contamination monitoring equipment. At one kilometer

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downwind, Strike team 2 will move across

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the potentially contaminated area

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and take exposer rate measure at intersections

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and halfway down each block,

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for approximately every 50 meters. If elevated exposure

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rates are found the team should make measurements

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for alpha and beta contamination.

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If not alpha contamination is found
at the scene or downwind

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then responders can stop making measurement
for alpha contamination.

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If either strike team finds downwind contamination then

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the shelter in place should be extend 20000 meters

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in the downwind direction
then phase 2 measurements should be made.

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For more information, turn to page 23

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of the RDD of the Response Guidance.