Spectroscopic study on the implosion of detonation

Hiroyuki Matsui; Yoshiro Nagumo

doi:10.1117/12.273435

28 May 1997 Spectroscopic study on the implosion of detonation

Hiroyuki Matsui, Yoshiro Nagumo

Proceedings Volume 2869, 22nd International Congress on High-Speed Photography and Photonics; (1997) https://doi.org/10.1117/12.273435
Event: 22nd International Congress on High-Speed Photography and Photonics, 1996, Santa Fe, NM, United States

Abstract

Dynamic behavior of the imploding detonation in C₂H₂-O₂ mixtures is monitored using a high speed image converter camera (Imacon 790) with frame intervals of 50 to 500 nsec. Excellent cylindrical symmetry is maintained until the imploding shock wave is confined as small as 0.2 mm in diameter. Temperatures behind the reflected shock waves are determined from the spectral intensity distribution of the plasma and a theoretical model for the strong reflected shock wave of the imploding detonation is examined by comparing the experimental results. Line spectrum of calcium ion emitted from the CaF₂ window is also identified as a source of the very strong radiation with a long life time at the center of the implosion.

Citation Download Citation

Hiroyuki Matsui and Yoshiro Nagumo "Spectroscopic study on the implosion of detonation", Proc. SPIE 2869, 22nd International Congress on High-Speed Photography and Photonics, (28 May 1997); https://doi.org/10.1117/12.273435

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