Test setup for instrumented initiation tests

The initiation threshold of fragment impact on explosives was tested with s ingle and double fragment impacts with zero and defined small rime differen ces at constant 40 mm impact distance against confined Composition B charge s. Reaction levels can be described by the debris sizes of the casing, resp ectively of the confinement. Much more distinctively, these results can be analyzed more in detail by the pressure profiles measured with in-situ pres sure gauges.