X-band active-passive rf pulse compressor with plasma switches

As proposed by SLAC, the efficiency of a pulse compressor of the SLED-II type could be increased by changing both the phase of the microwave source and the coupling coefficient of the delay line. In the existing SLED-II system at frequency 11.4 GHz, the resonant delay line is coupled with the source...

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Main Authors: A. L. Vikharev, O. A. Ivanov, A. M. Gorbachev, M. A. Lobaev, V. A. Isaev, S. G. Tantawi, J. R. Lewandowski, J. L. Hirshfield
Format: Article
Language:English
Published: American Physical Society 2011-12-01
Series:Physical Review Special Topics. Accelerators and Beams
Online Access:http://doi.org/10.1103/PhysRevSTAB.14.121302
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author A. L. Vikharev
O. A. Ivanov
A. M. Gorbachev
M. A. Lobaev
V. A. Isaev
S. G. Tantawi
J. R. Lewandowski
J. L. Hirshfield
author_facet A. L. Vikharev
O. A. Ivanov
A. M. Gorbachev
M. A. Lobaev
V. A. Isaev
S. G. Tantawi
J. R. Lewandowski
J. L. Hirshfield
author_sort A. L. Vikharev
collection DOAJ
description As proposed by SLAC, the efficiency of a pulse compressor of the SLED-II type could be increased by changing both the phase of the microwave source and the coupling coefficient of the delay line. In the existing SLED-II system at frequency 11.4 GHz, the resonant delay line is coupled with the source via an iris with a constant reflection coefficient. Replacement of the iris with an active component makes it possible to create an active SLED-II system. In this paper, the use of plasma switches as the active elements is discussed. Plasma switches have been developed and tested at a high-power level for production of flattop compressed pulses. Active switching of SLED-II has demonstrated a marked increase in efficiency (by 20%) and power gain (by 37%) as compared with passive switching. The active compressor has produced 173 ns rf flattop output pulses with a power of about 112 MW.
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spelling doaj.art-638ce8181de544b0b9c76399622fc0912022-12-22T01:59:58ZengAmerican Physical SocietyPhysical Review Special Topics. Accelerators and Beams1098-44022011-12-01141212130210.1103/PhysRevSTAB.14.121302X-band active-passive rf pulse compressor with plasma switchesA. L. VikharevO. A. IvanovA. M. GorbachevM. A. LobaevV. A. IsaevS. G. TantawiJ. R. LewandowskiJ. L. HirshfieldAs proposed by SLAC, the efficiency of a pulse compressor of the SLED-II type could be increased by changing both the phase of the microwave source and the coupling coefficient of the delay line. In the existing SLED-II system at frequency 11.4 GHz, the resonant delay line is coupled with the source via an iris with a constant reflection coefficient. Replacement of the iris with an active component makes it possible to create an active SLED-II system. In this paper, the use of plasma switches as the active elements is discussed. Plasma switches have been developed and tested at a high-power level for production of flattop compressed pulses. Active switching of SLED-II has demonstrated a marked increase in efficiency (by 20%) and power gain (by 37%) as compared with passive switching. The active compressor has produced 173 ns rf flattop output pulses with a power of about 112 MW.http://doi.org/10.1103/PhysRevSTAB.14.121302
spellingShingle A. L. Vikharev
O. A. Ivanov
A. M. Gorbachev
M. A. Lobaev
V. A. Isaev
S. G. Tantawi
J. R. Lewandowski
J. L. Hirshfield
X-band active-passive rf pulse compressor with plasma switches
Physical Review Special Topics. Accelerators and Beams
title X-band active-passive rf pulse compressor with plasma switches
title_full X-band active-passive rf pulse compressor with plasma switches
title_fullStr X-band active-passive rf pulse compressor with plasma switches
title_full_unstemmed X-band active-passive rf pulse compressor with plasma switches
title_short X-band active-passive rf pulse compressor with plasma switches
title_sort x band active passive rf pulse compressor with plasma switches
url http://doi.org/10.1103/PhysRevSTAB.14.121302
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