TY - CHAP

T1 - Changes in the tandem accelerator in the second version of the VITA-II accelerator neutron source

AU - Kolesnikov, Iaroslav

AU - Koshkarev, Aleksei

AU - Shchudlo, Ivan

AU - Sorokin, Igor

AU - Taskaev, Sergey

N1 - Conference code: 31

PY - 2025/11/26

Y1 - 2025/11/26

N2 - In the second version of the VITA-II accelerator neutron source, outer corrugated ceramic surface is using in the vacuum part of the feedthrough insulator to increase the reliability of the tandem and increase the electrical strength, and the height of individual insulators is increased. When the highvoltage power source is turned 180 degrees, the lower part of the feedthrough insulator is located inside the rectifier sections. This allowed the accelerating potential to be supplied through the lower gas part of the feedthrough insulator to the high-voltage electrodes of the vacuum part of the accelerator directly from its sections. Which made it possible to create a uniform voltage distribution in the accelerating gaps of the tandem and eliminate the voltage drop in the gaps when dark currents appear. The changes made allowed to reduce the height of the facility, which is essential for placing the facility in a medical clinic. The report describes the changes made and the results of the experiments.

AB - In the second version of the VITA-II accelerator neutron source, outer corrugated ceramic surface is using in the vacuum part of the feedthrough insulator to increase the reliability of the tandem and increase the electrical strength, and the height of individual insulators is increased. When the highvoltage power source is turned 180 degrees, the lower part of the feedthrough insulator is located inside the rectifier sections. This allowed the accelerating potential to be supplied through the lower gas part of the feedthrough insulator to the high-voltage electrodes of the vacuum part of the accelerator directly from its sections. Which made it possible to create a uniform voltage distribution in the accelerating gaps of the tandem and eliminate the voltage drop in the gaps when dark currents appear. The changes made allowed to reduce the height of the facility, which is essential for placing the facility in a medical clinic. The report describes the changes made and the results of the experiments.

UR - https://www.scopus.com/pages/publications/105029734598

UR - https://www.mendeley.com/catalogue/fc321a95-2cfb-36e8-99c6-334a47ca1752/

U2 - 10.1109/isdeiv60861.2025.11255804

DO - 10.1109/isdeiv60861.2025.11255804

M3 - Chapter

SN - 9798331526955

SP - 1

EP - 3

BT - 2025 31st International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 31st International Symposium on Discharges and Electrical Insulation in Vacuum

Y2 - 21 September 2025 through 26 September 2025

ER -