Development of a 1 MV ultra-fast LTD generator

Abstract

A 1 MV linear transformer driver (LTD) generator has been manufactured by ITHPP and SEIV, and delivered to CEA/DIF/Polygone d'Expérimentation de Moronvilliers, in order to demonstrate the capability of this technology for flash X-ray radiography applications. This generator is composed of 10 cavities; each cavity includes 16 bricks representing two capacitors (GA 35436, 100kV, 8nF) and one multi-gaps air pressurized switch. To reduce the resistive losses in the switches, the inter-electrode gaps have been reduced from 6 mm in initial design to 4 mm, and the dry air pressure has been slightly increased. Each cavity has been tested individually on an automated testbed using a low inductive resistive load (∼1.2nH) and extensive diagnostics, including a set of sixteen capacitive probes in front of each switch to control their timing sequence. The cavities deliver more than 100kV at ±100kV charging voltage into a matched load of 0.55-0.6Ω in a ∼70-ns FWHM pulse. Around 300 shots have been made on each cavity (to condition the switches) before their integration into the generator.

Original language	English
Title of host publication	Digest of Technical Papers-IEEE International Pulsed Power Conference
Pages	619-624
Number of pages	6
DOIs	https://doi.org/10.1109/PPC.2011.6191551
Publication status	Published - 2011
Event	18th IEEE International Pulsed Power Conference, PPC 2011 - Chicago, IL, United States Duration: 19 Jun 2011 → 23 Jun 2011

Other

Other	18th IEEE International Pulsed Power Conference, PPC 2011
Country	United States
City	Chicago, IL
Period	19.6.11 → 23.6.11

ASJC Scopus subject areas

Electrical and Electronic Engineering
Energy Engineering and Power Technology

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10.1109/PPC.2011.6191551

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Bayol, F., Cubaynes, F., Delplanque, R., Genez, P., Legras, C., Parzych, M., Toury, M., Caron, M., Mouillet, M., & Kim, A. A. (2011). Development of a 1 MV ultra-fast LTD generator. In Digest of Technical Papers-IEEE International Pulsed Power Conference (pp. 619-624). [6191551] https://doi.org/10.1109/PPC.2011.6191551

Bayol, F, Cubaynes, F, Delplanque, R, Genez, P, Legras, C, Parzych, M, Toury, M, Caron, M, Mouillet, M & Kim, AA 2011, Development of a 1 MV ultra-fast LTD generator. in Digest of Technical Papers-IEEE International Pulsed Power Conference., 6191551, pp. 619-624, 18th IEEE International Pulsed Power Conference, PPC 2011, Chicago, IL, United States, 19.6.11. https://doi.org/10.1109/PPC.2011.6191551

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abstract = "A 1 MV linear transformer driver (LTD) generator has been manufactured by ITHPP and SEIV, and delivered to CEA/DIF/Polygone d'Exp{\'e}rimentation de Moronvilliers, in order to demonstrate the capability of this technology for flash X-ray radiography applications. This generator is composed of 10 cavities; each cavity includes 16 bricks representing two capacitors (GA 35436, 100kV, 8nF) and one multi-gaps air pressurized switch. To reduce the resistive losses in the switches, the inter-electrode gaps have been reduced from 6 mm in initial design to 4 mm, and the dry air pressure has been slightly increased. Each cavity has been tested individually on an automated testbed using a low inductive resistive load (∼1.2nH) and extensive diagnostics, including a set of sixteen capacitive probes in front of each switch to control their timing sequence. The cavities deliver more than 100kV at ±100kV charging voltage into a matched load of 0.55-0.6Ω in a ∼70-ns FWHM pulse. Around 300 shots have been made on each cavity (to condition the switches) before their integration into the generator.",

author = "F. Bayol and F. Cubaynes and R. Delplanque and P. Genez and C. Legras and M. Parzych and M. Toury and M. Caron and M. Mouillet and Kim, {A. A.}",

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AU - Bayol, F.

AU - Cubaynes, F.

AU - Delplanque, R.

AU - Genez, P.

AU - Legras, C.

AU - Parzych, M.

AU - Toury, M.

AU - Caron, M.

AU - Mouillet, M.

AU - Kim, A. A.

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AB - A 1 MV linear transformer driver (LTD) generator has been manufactured by ITHPP and SEIV, and delivered to CEA/DIF/Polygone d'Expérimentation de Moronvilliers, in order to demonstrate the capability of this technology for flash X-ray radiography applications. This generator is composed of 10 cavities; each cavity includes 16 bricks representing two capacitors (GA 35436, 100kV, 8nF) and one multi-gaps air pressurized switch. To reduce the resistive losses in the switches, the inter-electrode gaps have been reduced from 6 mm in initial design to 4 mm, and the dry air pressure has been slightly increased. Each cavity has been tested individually on an automated testbed using a low inductive resistive load (∼1.2nH) and extensive diagnostics, including a set of sixteen capacitive probes in front of each switch to control their timing sequence. The cavities deliver more than 100kV at ±100kV charging voltage into a matched load of 0.55-0.6Ω in a ∼70-ns FWHM pulse. Around 300 shots have been made on each cavity (to condition the switches) before their integration into the generator.

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