TY - GEN
T1 - A Mini-Marx Generator Powered by a Cockcroft-Walton Voltage Multiplier for a Compact X-ray Source
AU - Aranganadin, Kaviya
AU - Zhang, Zhaofeng
AU - Chang, Po Yu
AU - Hsu, Hua Yi
AU - Lin, Ming Chieh
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - A Marx generator generates a high-voltage pulse by charging lots of capacitors in parallel, then suddenly connecting them in series. In principles, a comparatively lower voltage DC power supply can be used for the charging to achieve the desired high voltage. However, a moderate DC high-voltage power supply is still quite expensive and bulky but not in full-time charging. In this work, a mini-Marx generator powered by a Cockcroft-Walton (CW) voltage multiplier has been proposed to form a more efficient but affordable choice of pulsed high-voltage power sources. For generating a high voltage in a range of 70-100 kV with the mini-Marx generator consisting of 8 stages, a CW multiplier operating up to 10-15 kV is required. A 22-stage CW multiplier with an AC supply voltage of 220 V at 60 Hz is chosen so that it can be driven by household electricity to generate a DC voltage of over 13 kV to charge the mini-Marx generator. For demonstration, a prototype of the 22-stage CW powered 4-stage mini-Marx has been tested with an AC voltage of 110 V at 60 Hz. The CW generator can reach 6 kV to power the mini-Marx, consistent with the PSpice modeling.
AB - A Marx generator generates a high-voltage pulse by charging lots of capacitors in parallel, then suddenly connecting them in series. In principles, a comparatively lower voltage DC power supply can be used for the charging to achieve the desired high voltage. However, a moderate DC high-voltage power supply is still quite expensive and bulky but not in full-time charging. In this work, a mini-Marx generator powered by a Cockcroft-Walton (CW) voltage multiplier has been proposed to form a more efficient but affordable choice of pulsed high-voltage power sources. For generating a high voltage in a range of 70-100 kV with the mini-Marx generator consisting of 8 stages, a CW multiplier operating up to 10-15 kV is required. A 22-stage CW multiplier with an AC supply voltage of 220 V at 60 Hz is chosen so that it can be driven by household electricity to generate a DC voltage of over 13 kV to charge the mini-Marx generator. For demonstration, a prototype of the 22-stage CW powered 4-stage mini-Marx has been tested with an AC voltage of 110 V at 60 Hz. The CW generator can reach 6 kV to power the mini-Marx, consistent with the PSpice modeling.
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U2 - 10.1109/IVEC53421.2022.10292423
DO - 10.1109/IVEC53421.2022.10292423
M3 - Conference contribution
AN - SCOPUS:85178502594
T3 - 2022 23rd International Vacuum Electronics Conference, IVEC 2022
SP - 490
EP - 491
BT - 2022 23rd International Vacuum Electronics Conference, IVEC 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 23rd International Vacuum Electronics Conference, IVEC 2022
Y2 - 25 April 2022 through 29 April 2022
ER -