WEBVTT 00:00:02.330 --> 00:00:05.509 [Music] 00:00:09.620 --> 00:00:16.049 the recognized mission when responding 00:00:13.590 --> 00:00:18.090 to a radiological dispersal device the 00:00:16.049 --> 00:00:20.010 first step is recognizing that a bomb of 00:00:18.090 --> 00:00:22.199 this type has been detonated and that 00:00:20.010 --> 00:00:24.570 radiation is present at the scene of the 00:00:22.199 --> 00:00:28.650 explosion the recognized mission 00:00:24.570 --> 00:00:30.390 consists of two tactics tactic 1 initial 00:00:28.650 --> 00:00:32.640 response and on-scene recognition 00:00:30.390 --> 00:00:34.590 first responders are equipped with 00:00:32.640 --> 00:00:36.390 radiation detection equipment that is in 00:00:34.590 --> 00:00:39.210 continuous use when responding to an 00:00:36.390 --> 00:00:41.010 explosion use of radiation detectors 00:00:39.210 --> 00:00:43.110 provides first responders with 00:00:41.010 --> 00:00:45.450 situational awareness to promptly reveal 00:00:43.110 --> 00:00:50.879 the presence of radiation and associated 00:00:45.450 --> 00:00:54.000 hazards during a response tactic to 00:00:50.879 --> 00:00:56.280 confirm the presence of radiation once 00:00:54.000 --> 00:00:58.140 radiation is initially detected first 00:00:56.280 --> 00:01:00.899 responders need to confirm the presence 00:00:58.140 --> 00:01:03.600 of radiation by taking a minimum of two 00:01:00.899 --> 00:01:05.420 readings in two locations using two 00:01:03.600 --> 00:01:08.010 separate radiation detection instruments 00:01:05.420 --> 00:01:10.380 this tactic is completed in order to 00:01:08.010 --> 00:01:12.689 avoid unnecessarily alarming the public 00:01:10.380 --> 00:01:14.790 due to a false positive reading from one 00:01:12.689 --> 00:01:17.549 malfunctioning detector or a localized 00:01:14.790 --> 00:01:20.130 legitimate radiation source using two 00:01:17.549 --> 00:01:21.869 readings taken in two locations by two 00:01:20.130 --> 00:01:24.090 separate instruments can help mitigate 00:01:21.869 --> 00:01:26.700 the misidentification of an RDD 00:01:24.090 --> 00:01:29.549 detonation the two measurements should 00:01:26.700 --> 00:01:30.060 be taken a minimum of 50 feet apart from 00:01:29.549 --> 00:01:32.700 each other 00:01:30.060 --> 00:01:34.799 detectors should be held 3 feet above 00:01:32.700 --> 00:01:37.590 the ground both meters should register 00:01:34.799 --> 00:01:39.659 levels greater than 3 to 5 times the 00:01:37.590 --> 00:01:41.369 natural background to signify the 00:01:39.659 --> 00:01:44.040 presence of elevated radioactivity 00:01:41.369 --> 00:01:46.110 levels knowledge a various specific 00:01:44.040 --> 00:01:48.299 background radiation which may include 00:01:46.110 --> 00:01:50.340 natural variations is critical for 00:01:48.299 --> 00:01:52.649 identifying elevated radiation levels 00:01:50.340 --> 00:01:54.899 local agencies should take steps to 00:01:52.649 --> 00:01:57.060 understand and map normal background 00:01:54.899 --> 00:01:58.649 radiation levels in their jurisdiction 00:01:57.060 --> 00:02:00.990 for more information 00:01:58.649 --> 00:02:03.500 turn to page 13 of the RDD response 00:02:00.990 --> 00:02:03.500 guidance