Reference, Questions and Help => Nuke Q&A => Definitions => Topic started by: Rennhack on Nov 23, 2005, 04:36
Title: Lethal dose (LD)
Post by: Rennhack on Nov 23, 2005, 04:36
The dose of radiation expected to cause death to 50 percent of an exposed population within 30 days (LD 50/30). Typically, the LD 50/30 is in the range from 400 to 450 rem (4 to 5 sieverts) received over a very short period.