is used to trigger bombs
, shaped charges and other forms of explosive device
. Detonators are often attached to a timer to ensure that the explosion
takes place at the desired time, or when the person laying the explosives has reached a safe distance from the blast
. Detonators can be chemical, mechanical, or a combination. Many detonators' primary (sensitive to heat and shock) explosive is a material called tetryl
In a nuclear weapon a nuclear fission bomb is used as detonator to start nuclear fusion reactions.
See also Explosive material, Fuse, Nuclear weapon design.