TY - GEN
T1 - A 50 kV, 100 Hz low jitter triggered spark gap with high pressure gas mixtures
AU - Chen, Yeong Jer
AU - Mankowski, John J.
AU - Dickens, James C.
AU - Walter, John
AU - Kristiansen, Magne
PY - 2008
Y1 - 2008
N2 - Recent research efforts at Texas Tech University on j impulse antenna phased array has necessitated the need to, develop a reliable high voltage, high repetition rate switch that, will operate with ultra low jitter. An ideal jitter of a small fraction of the risetime is required to accurately synchronize the 1 array to steer and preserve the risetime of the radiated pulse. In ( [1], we showed the initial test system with sub-ns results for operations in different gases and gas mixtures. This paper presents the impact gases and gas mixtures have on switch performance which includes recovery rate and in particular jitter. A 50 Ω, 1 nF pulse forming line is charged to 50 kV and provides the low inductance voltage source to test the different gases. Triggering is provided by a solid state opening switch voltage source that supplies ∼150 kV, 10 ns risetime pulses at a rep rate up to 100 Hz in burst mode. A hermetically sealed spark gap with a Kel-F lining is used to house the switch and high pressure gas. This paper discusses in detail 50 k, 100 Hz switch operations with different gases. Gases tested include, dry Air, H2, N2, and SF6, as well as H2-N2, and N2-SF6 gas mixtures. Switch jitter as a result of triggering conditions is discussed, also including a comprehensive evaluation of jitter as a function of formative delay in the various gases.
AB - Recent research efforts at Texas Tech University on j impulse antenna phased array has necessitated the need to, develop a reliable high voltage, high repetition rate switch that, will operate with ultra low jitter. An ideal jitter of a small fraction of the risetime is required to accurately synchronize the 1 array to steer and preserve the risetime of the radiated pulse. In ( [1], we showed the initial test system with sub-ns results for operations in different gases and gas mixtures. This paper presents the impact gases and gas mixtures have on switch performance which includes recovery rate and in particular jitter. A 50 Ω, 1 nF pulse forming line is charged to 50 kV and provides the low inductance voltage source to test the different gases. Triggering is provided by a solid state opening switch voltage source that supplies ∼150 kV, 10 ns risetime pulses at a rep rate up to 100 Hz in burst mode. A hermetically sealed spark gap with a Kel-F lining is used to house the switch and high pressure gas. This paper discusses in detail 50 k, 100 Hz switch operations with different gases. Gases tested include, dry Air, H2, N2, and SF6, as well as H2-N2, and N2-SF6 gas mixtures. Switch jitter as a result of triggering conditions is discussed, also including a comprehensive evaluation of jitter as a function of formative delay in the various gases.
UR - http://www.scopus.com/inward/record.url?scp=62949189804&partnerID=8YFLogxK
U2 - 10.1109/IPMC.2008.4743614
DO - 10.1109/IPMC.2008.4743614
M3 - Conference contribution
AN - SCOPUS:62949189804
SN - 9781424415359
T3 - Proceedings of the 2008 IEEE International Power Modulators and High Voltage Conference, PMHVC
SP - 197
EP - 200
BT - Proceedings of the 2008 IEEE International Power Modulators and High Voltage Conference, PMHVC
T2 - 2008 IEEE International Power Modulators and High Voltage Conference, PMHVC
Y2 - 27 May 2008 through 31 May 2008
ER -