VELOCE: A compact pulser for dynamic material characterization and hypervelocity impact of flyer plates

Abstract

Sharing similarities with the GEPI puiser which is dedicated to Isentropic Compression Experiments (ICE), VELOCE, an even more compact electrical puiser, has been designed and built in duplicate for SNL and WSU. This type of machine complements gun and laser facilities in the study of material response. In order to achieve a broad loading capability and fast turn around, the design is built around a solid dielectric transmission line to couple current from low inductance capacitors and electrically triggered switches. Peaking capacitors enhanced by a low inductance, multi-channel sharpening switch reduce the quarter period of the puiser to about 470 ns (0-100%). Gas mixtures in the switch cavity and inductances in parallel allow modification of the shape of the induced pressure wave. At 80kV of charge voltage, the peak current can reach 3.5MA. Design of the puiser, range of pressures and velocities, as well as potential applications are presented. A consistent numerical tool developed for pulsers design based on a circuit code coupled to a 1D MHD code is also introduced.

Original language	English
Title of host publication	AIP Conference Proceedings
Pages	1161-1164
Number of pages	4
Volume	955
DOIs	https://doi.org/10.1063/1.2832925
Publication status	Published - 2007
Event	15th Biennial International Conference of the APS Topical Group on Shock Compression of Condensed Matter, SCCM 2007 - Waikoloa, HI, United States Duration: 24 Jun 2007 → 29 Jun 2007

Other

Other	15th Biennial International Conference of the APS Topical Group on Shock Compression of Condensed Matter, SCCM 2007
Country	United States
City	Waikoloa, HI
Period	24.6.07 → 29.6.07

Keywords

Flyer plates
Hypervelocity
Isentropic compression
Magnetic
Puiser

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.2832925

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Avrillaud, G., Asay, J. R., Bavay, M., Delchambre, M., Guerre, J., Bayol, F., Cubaynes, F., Kovalchuk, B. M., Mervini, J. A., Spielman, R. B., Hall, C. A., Hickman, R. J., Ao, T., Willis, M. D., Gupta, Y. M., & Bakeman, C. J. (2007). VELOCE: A compact pulser for dynamic material characterization and hypervelocity impact of flyer plates. In AIP Conference Proceedings (Vol. 955, pp. 1161-1164) https://doi.org/10.1063/1.2832925

VELOCE : A compact pulser for dynamic material characterization and hypervelocity impact of flyer plates. / Avrillaud, G.; Asay, J. R.; Bavay, M.; Delchambre, M.; Guerre, J.; Bayol, F.; Cubaynes, F.; Kovalchuk, B. M.; Mervini, J. A.; Spielman, R. B.; Hall, C. A.; Hickman, R. J.; Ao, T.; Willis, M. D.; Gupta, Y. M.; Bakeman, C. J.

AIP Conference Proceedings. Vol. 955 2007. p. 1161-1164.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Avrillaud, G, Asay, JR, Bavay, M, Delchambre, M, Guerre, J, Bayol, F, Cubaynes, F, Kovalchuk, BM, Mervini, JA, Spielman, RB, Hall, CA, Hickman, RJ, Ao, T, Willis, MD, Gupta, YM & Bakeman, CJ 2007, VELOCE: A compact pulser for dynamic material characterization and hypervelocity impact of flyer plates. in AIP Conference Proceedings. vol. 955, pp. 1161-1164, 15th Biennial International Conference of the APS Topical Group on Shock Compression of Condensed Matter, SCCM 2007, Waikoloa, HI, United States, 24.6.07. https://doi.org/10.1063/1.2832925

Avrillaud, G. ; Asay, J. R. ; Bavay, M. ; Delchambre, M. ; Guerre, J. ; Bayol, F. ; Cubaynes, F. ; Kovalchuk, B. M. ; Mervini, J. A. ; Spielman, R. B. ; Hall, C. A. ; Hickman, R. J. ; Ao, T. ; Willis, M. D. ; Gupta, Y. M. ; Bakeman, C. J. / VELOCE : A compact pulser for dynamic material characterization and hypervelocity impact of flyer plates. AIP Conference Proceedings. Vol. 955 2007. pp. 1161-1164

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abstract = "Sharing similarities with the GEPI puiser which is dedicated to Isentropic Compression Experiments (ICE), VELOCE, an even more compact electrical puiser, has been designed and built in duplicate for SNL and WSU. This type of machine complements gun and laser facilities in the study of material response. In order to achieve a broad loading capability and fast turn around, the design is built around a solid dielectric transmission line to couple current from low inductance capacitors and electrically triggered switches. Peaking capacitors enhanced by a low inductance, multi-channel sharpening switch reduce the quarter period of the puiser to about 470 ns (0-100%). Gas mixtures in the switch cavity and inductances in parallel allow modification of the shape of the induced pressure wave. At 80kV of charge voltage, the peak current can reach 3.5MA. Design of the puiser, range of pressures and velocities, as well as potential applications are presented. A consistent numerical tool developed for pulsers design based on a circuit code coupled to a 1D MHD code is also introduced.",

keywords = "Flyer plates, Hypervelocity, Isentropic compression, Magnetic, Puiser",

author = "G. Avrillaud and Asay, {J. R.} and M. Bavay and M. Delchambre and J. Guerre and F. Bayol and F. Cubaynes and Kovalchuk, {B. M.} and Mervini, {J. A.} and Spielman, {R. B.} and Hall, {C. A.} and Hickman, {R. J.} and T. Ao and Willis, {M. D.} and Gupta, {Y. M.} and Bakeman, {C. J.}",

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AB - Sharing similarities with the GEPI puiser which is dedicated to Isentropic Compression Experiments (ICE), VELOCE, an even more compact electrical puiser, has been designed and built in duplicate for SNL and WSU. This type of machine complements gun and laser facilities in the study of material response. In order to achieve a broad loading capability and fast turn around, the design is built around a solid dielectric transmission line to couple current from low inductance capacitors and electrically triggered switches. Peaking capacitors enhanced by a low inductance, multi-channel sharpening switch reduce the quarter period of the puiser to about 470 ns (0-100%). Gas mixtures in the switch cavity and inductances in parallel allow modification of the shape of the induced pressure wave. At 80kV of charge voltage, the peak current can reach 3.5MA. Design of the puiser, range of pressures and velocities, as well as potential applications are presented. A consistent numerical tool developed for pulsers design based on a circuit code coupled to a 1D MHD code is also introduced.

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