Expected Timeline of IND Detonation - Illustration Expected Timeline of Events for a 10-Kiloton Improvised Nuclear Device Detonation The graphic above is from the Nuclear/Radiological Incident Annex to the Response and Recovery Federal Interagency Operations Plan (PDF - 3.38 MB) (US Government Interagency, 2016) It shows the expected chronologic relationship of problems following the detonation of an IND. The text after the graphic in the Annex explains the terms in the graphic. See more REMM information about radiation incident timelines