Experimental validation of the first 1-MA water-insulated MYKONOS LTD voltage adder

Abstract

The LTD technological approach can result in very compact devices that can deliver fast, high current and high voltage pulses straight out of the cavity without any complicated pulse forming and pulse-compression network. Through multistage inductively insulated voltage adders, the output pulse, increased in voltage amplitude, can be applied directly to the load. Because the output pulse rise time and width can be easily tailored (pulse shaped) to the specific application needs, the load may be a vacuum electron diode, a z-pinch wire array, a gas puff, a liner, an isentropic compression load (ICE) to study material behavior under very high magnetic fields, or a fusion energy (IFE) target. Ten 1-MA LTD cavities were originally designed and built to run in a vacuum or Magnetic Insulated Transmission Line (MITL) voltage adder configuration and, after successful operation in this mode, were modified and made capable to operate assembled in a de-ionized water insulated voltage adder. Special care has been taken to de-aerate the water and eliminate air bubbles. Our motivation is to test the advantages of water insulation compared to the MITL transmission approach. The desired effect is that the vacuum sheath electron current losses and pulse front erosion would be avoided without any new difficulties caused by the de-ionized water insulator. Presently, we have assembled and are testing a two-cavity, water insulated voltage adder with a liquid resistor load. Experimental results of up to 95kV capacitor charging are presented and compared with circuit code simulations.

Original language	English
Title of host publication	Digest of Technical Papers-IEEE International Pulsed Power Conference
Pages	625-628
Number of pages	4
DOIs	https://doi.org/10.1109/PPC.2011.6191552
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.2011.6191552

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Mazarakis, M. G., Savage, M. E., Fowler, W. E., Bennett, L. F., Jones, M., Long, F. W., Matzen, M. K., McDaniel, D. H., McKee, R. G., McKenney, J. L., Porter, J. L., Stoltzfus, B. S., Struve, K. W., Stygar, W. A., Woodworth, J. R., Kim, A. A., Sinebryukhov, V. A., LeChien, K. L., Wakeland, P., ... Lewis, S. A. (2011). Experimental validation of the first 1-MA water-insulated MYKONOS LTD voltage adder. In Digest of Technical Papers-IEEE International Pulsed Power Conference (pp. 625-628). [6191552] https://doi.org/10.1109/PPC.2011.6191552

Experimental validation of the first 1-MA water-insulated MYKONOS LTD voltage adder. / Mazarakis, M. G.; Savage, M. E.; Fowler, W. E.; Bennett, L. F.; Jones, M.; Long, F. W.; Matzen, M. K.; McDaniel, D. H.; McKee, R. G.; McKenney, J. L.; Porter, J. L.; Stoltzfus, B. S.; Struve, K. W.; Stygar, W. A.; Woodworth, J. R.; Kim, A. A.; Sinebryukhov, V. A.; LeChien, K. L.; Wakeland, P.; Ward, K.; Puissant, J. G.; Chavez, T. F.; Jones, P. A.; Lucero, D. J.; Natoni, G.; Lewis, S. A.

Digest of Technical Papers-IEEE International Pulsed Power Conference. 2011. p. 625-628 6191552.

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

Mazarakis, MG, Savage, ME, Fowler, WE, Bennett, LF, Jones, M, Long, FW, Matzen, MK, McDaniel, DH, McKee, RG, McKenney, JL, Porter, JL, Stoltzfus, BS, Struve, KW, Stygar, WA, Woodworth, JR, Kim, AA, Sinebryukhov, VA, LeChien, KL, Wakeland, P, Ward, K, Puissant, JG, Chavez, TF, Jones, PA, Lucero, DJ, Natoni, G & Lewis, SA 2011, Experimental validation of the first 1-MA water-insulated MYKONOS LTD voltage adder. in Digest of Technical Papers-IEEE International Pulsed Power Conference., 6191552, pp. 625-628, 18th IEEE International Pulsed Power Conference, PPC 2011, Chicago, IL, United States, 19.6.11. https://doi.org/10.1109/PPC.2011.6191552

Mazarakis, M. G. ; Savage, M. E. ; Fowler, W. E. ; Bennett, L. F. ; Jones, M. ; Long, F. W. ; Matzen, M. K. ; McDaniel, D. H. ; McKee, R. G. ; McKenney, J. L. ; Porter, J. L. ; Stoltzfus, B. S. ; Struve, K. W. ; Stygar, W. A. ; Woodworth, J. R. ; Kim, A. A. ; Sinebryukhov, V. A. ; LeChien, K. L. ; Wakeland, P. ; Ward, K. ; Puissant, J. G. ; Chavez, T. F. ; Jones, P. A. ; Lucero, D. J. ; Natoni, G. ; Lewis, S. A. / Experimental validation of the first 1-MA water-insulated MYKONOS LTD voltage adder. Digest of Technical Papers-IEEE International Pulsed Power Conference. 2011. pp. 625-628

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title = "Experimental validation of the first 1-MA water-insulated MYKONOS LTD voltage adder",

abstract = "The LTD technological approach can result in very compact devices that can deliver fast, high current and high voltage pulses straight out of the cavity without any complicated pulse forming and pulse-compression network. Through multistage inductively insulated voltage adders, the output pulse, increased in voltage amplitude, can be applied directly to the load. Because the output pulse rise time and width can be easily tailored (pulse shaped) to the specific application needs, the load may be a vacuum electron diode, a z-pinch wire array, a gas puff, a liner, an isentropic compression load (ICE) to study material behavior under very high magnetic fields, or a fusion energy (IFE) target. Ten 1-MA LTD cavities were originally designed and built to run in a vacuum or Magnetic Insulated Transmission Line (MITL) voltage adder configuration and, after successful operation in this mode, were modified and made capable to operate assembled in a de-ionized water insulated voltage adder. Special care has been taken to de-aerate the water and eliminate air bubbles. Our motivation is to test the advantages of water insulation compared to the MITL transmission approach. The desired effect is that the vacuum sheath electron current losses and pulse front erosion would be avoided without any new difficulties caused by the de-ionized water insulator. Presently, we have assembled and are testing a two-cavity, water insulated voltage adder with a liquid resistor load. Experimental results of up to 95kV capacitor charging are presented and compared with circuit code simulations.",

author = "Mazarakis, {M. G.} and Savage, {M. E.} and Fowler, {W. E.} and Bennett, {L. F.} and M. Jones and Long, {F. W.} and Matzen, {M. K.} and McDaniel, {D. H.} and McKee, {R. G.} and McKenney, {J. L.} and Porter, {J. L.} and Stoltzfus, {B. S.} and Struve, {K. W.} and Stygar, {W. A.} and Woodworth, {J. R.} and Kim, {A. A.} and Sinebryukhov, {V. A.} and LeChien, {K. L.} and P. Wakeland and K. Ward and Puissant, {J. G.} and Chavez, {T. F.} and Jones, {P. A.} and Lucero, {D. J.} and G. Natoni and Lewis, {S. A.}",

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AU - Mazarakis, M. G.

AU - Savage, M. E.

AU - Fowler, W. E.

AU - Bennett, L. F.

AU - Jones, M.

AU - Long, F. W.

AU - Matzen, M. K.

AU - McDaniel, D. H.

AU - McKee, R. G.

AU - McKenney, J. L.

AU - Porter, J. L.

AU - Stoltzfus, B. S.

AU - Struve, K. W.

AU - Stygar, W. A.

AU - Woodworth, J. R.

AU - Kim, A. A.

AU - Sinebryukhov, V. A.

AU - LeChien, K. L.

AU - Wakeland, P.

AU - Ward, K.

AU - Puissant, J. G.

AU - Chavez, T. F.

AU - Jones, P. A.

AU - Lucero, D. J.

AU - Natoni, G.

AU - Lewis, S. A.

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N2 - The LTD technological approach can result in very compact devices that can deliver fast, high current and high voltage pulses straight out of the cavity without any complicated pulse forming and pulse-compression network. Through multistage inductively insulated voltage adders, the output pulse, increased in voltage amplitude, can be applied directly to the load. Because the output pulse rise time and width can be easily tailored (pulse shaped) to the specific application needs, the load may be a vacuum electron diode, a z-pinch wire array, a gas puff, a liner, an isentropic compression load (ICE) to study material behavior under very high magnetic fields, or a fusion energy (IFE) target. Ten 1-MA LTD cavities were originally designed and built to run in a vacuum or Magnetic Insulated Transmission Line (MITL) voltage adder configuration and, after successful operation in this mode, were modified and made capable to operate assembled in a de-ionized water insulated voltage adder. Special care has been taken to de-aerate the water and eliminate air bubbles. Our motivation is to test the advantages of water insulation compared to the MITL transmission approach. The desired effect is that the vacuum sheath electron current losses and pulse front erosion would be avoided without any new difficulties caused by the de-ionized water insulator. Presently, we have assembled and are testing a two-cavity, water insulated voltage adder with a liquid resistor load. Experimental results of up to 95kV capacitor charging are presented and compared with circuit code simulations.

AB - The LTD technological approach can result in very compact devices that can deliver fast, high current and high voltage pulses straight out of the cavity without any complicated pulse forming and pulse-compression network. Through multistage inductively insulated voltage adders, the output pulse, increased in voltage amplitude, can be applied directly to the load. Because the output pulse rise time and width can be easily tailored (pulse shaped) to the specific application needs, the load may be a vacuum electron diode, a z-pinch wire array, a gas puff, a liner, an isentropic compression load (ICE) to study material behavior under very high magnetic fields, or a fusion energy (IFE) target. Ten 1-MA LTD cavities were originally designed and built to run in a vacuum or Magnetic Insulated Transmission Line (MITL) voltage adder configuration and, after successful operation in this mode, were modified and made capable to operate assembled in a de-ionized water insulated voltage adder. Special care has been taken to de-aerate the water and eliminate air bubbles. Our motivation is to test the advantages of water insulation compared to the MITL transmission approach. The desired effect is that the vacuum sheath electron current losses and pulse front erosion would be avoided without any new difficulties caused by the de-ionized water insulator. Presently, we have assembled and are testing a two-cavity, water insulated voltage adder with a liquid resistor load. Experimental results of up to 95kV capacitor charging are presented and compared with circuit code simulations.

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