MARVEL Revisited:Experiment Design and Data Analysis.

摘要

As part of the research performed for the Defense Nuclear Agency program defining the in-trench environment for the MX missile system,the nuclear data base was reviewed to determine if any of it was applicable to the problem of air-shock attenuations in long, shallowly-buried tubes. Because of its unique shock-tube geometry,the LLL MARVEL event,fired in 1967,was judged one of the few relevant nuclear events. The MARVEL event is described,including emplacement geometry and emplacement of instrumentation to measure shock time-of-arrival (TOA) in the shock tube. TOA data from the event,including uncertainties,are discussed and analyzed. Finally,using shock-tube theory,the flow parameters D (shock-tube velocity) and P (peak pressure in the air behind the shock front) are derived from a fit to the MARVEL TOA data. The data derived from those parameters are consistent. (ERA citation 04:001301)