| Autor: |
J. W. Tringe, J. D. Molitoris, L. Smilowitz, J. R. Kercher, H. K. Springer, B. F. Henson, E. A. Glascoe, D. W. Greenwood, R. G. Garza, B. M. Wong, J. D. Batteux, J. L. Maienschein, Mark Elert, Michael D. Furnish, William W. Anderson, William G. Proud, William T. Butler |
| Rok vydání: |
2009 |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings. |
| ISSN: |
0094-243X |
| DOI: |
10.1063/1.3295164 |
| Popis: |
The evolution of a thermally‐initiated explosion is studied using a multiple‐image x‐ray system. HMX‐based PBX 9501 is used in this work, enabling direct comparison to recently‐published data obtained with proton radiography [1]. Multiple x‐ray images of the explosion are obtained with image spacing of ten microseconds or more. The explosion is simultaneously characterized with a high‐speed camera using an interframe spacing of 11 μs. X‐ray and camera images were both initiated passively by signals from an embedded thermocouple array, as opposed to being actively triggered by a laser pulse or other external source. X‐ray images show an accelerating reacting front within the explosive, and also show unreacted explosive at the time the containment vessel bursts. High‐speed camera images show debris ejected from the vessel expanding at 800–2100 m/s in the first tens of μs after the container wall failure. The effective center of the initiation volume is about 6 mm from the geometric center of the explosive. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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