US 12,278,478 B2
Overvoltage protection of accelerator components
Tyler R. Wills, Danvers, MA (US); and William H. Park, Marblehead, MA (US)
Assigned to Neutron Therapeutics LLC, Danvers, MA (US)
Appl. No. 17/998,572
Filed by Neutron Therapeutics LLC, Danvers, MA (US)
PCT Filed May 12, 2021, PCT No. PCT/US2021/031896
§ 371(c)(1), (2) Date Nov. 11, 2022,
PCT Pub. No. WO2021/231514, PCT Pub. Date Nov. 18, 2021.
Claims priority of provisional application 63/024,102, filed on May 13, 2020.
Prior Publication US 2023/0208130 A1, Jun. 29, 2023
Int. Cl. H05H 5/00 (2006.01); H02H 7/00 (2006.01); H05H 5/04 (2006.01); H05H 5/06 (2006.01)
CPC H02H 7/003 (2013.01) [H05H 5/04 (2013.01); H05H 5/06 (2013.01); H05H 2242/22 (2021.05)] 18 Claims
OG exemplary drawing
 
1. An over-voltage protection system for an accelerator comprising:
a plurality of DC power supplies configured to provide a plurality of voltage levels up to a desired voltage level; and
an acceleration tube electrically connected to the plurality of DC power supplies and configured to accelerate a charged particle, the acceleration tube comprising a plurality of stages, each stage comprising:
a plurality of electrodes, wherein one electrode of the plurality of electrodes is electrically coupled to a voltage level of the plurality of voltage levels; and
a plurality of varistors configured to discharge energy in response to an overvoltage event;
wherein the plurality of electrodes and the plurality of varistors are electrically coupled to each other and arranged in an alternating fashion;
wherein each stage comprises a plurality of insulators, each insulator being arranged in parallel with a varistor.