RuPAC2014 - List of Authors (Bekhterev, V.)

Paper	Title	Page
THPSC08	The Project of the HV Axial Injection for the DC-280 Cyclotron at the FLNR JINR	333
	G.G. Gulbekyan, V. Bekhterev, S.L. Bogomolov, A.A. Efremov, B. Gikal, I.A. Ivanenko, I.V. Kalagin, N.Yu. Kazarinov, M.V. Khabarov, V.N. Melnikov, N.F. Osipov, S.V. Prokhorov, A. Tikhomirov JINR, Dubna, Moscow Region, Russia
	The project of the high-voltage (HV) axial injection for the DC-280 cyclotron which is being created at the FLNR JINR is presented. The injection system will consists of a Permanent Magnet ECR ion source and a Superconducting ECR ion source, beam analyzing magnets, focusing solenoids, beam choppers, a polyharmonic buncher, 75 kV DC accelerating tubes, a commutating electrostatic deflector and a spiral inflector. One part of the injection system is situated on the HV platform, another part is on the grounded yoke of the DC-280 magnet. The injection system will allow one to inject efficiently ions of elements from Helium to Uranium with the atomic mass to charge ratio in the range of 4-7.5 providing acceleration of ion currents with intensity more than 10 pmkA.

THPSC55	Improvement of the Beam Transmission in the Central Region Of Warsaw U200P Cyclotron	453
	O. Steczkiewicz, J. Choinski, P. Gmaj HIL, Warsaw, Poland V. Bekhterev, I.A. Ivanenko JINR, Dubna, Moscow Region, Russia
	To date, Warsaw U200P cyclotron exploited a mirror inflector to feed heavy ions extracted from ECR ion source (10 GHz, 11 kV) to the central region of the cyclotron. However, in such configuration very low transmission was reachable after many optimizations. Additionally, the new ECR ion source (14,5 GHz, 14-24 kV) was installed, which offers energies far exceeding capabilities of the currently operated inflector and central region. To avoid these obstacles, we have developed a spiral inflector and redesigned central region of the cyclotron. It was a very challenging task, bearing in mind limited volume of central region in our compact machine, to carve these elements suitably for decent versatility of ion beams offered by Warsaw cyclotron. This project was executed in the collaboration with FLNR in Dubna, Russia. The cyclotron equipped with the new central region works in the "constant orbit" regime. Here we present the results of both computational simulations and measurements of the beam transmission in upgraded central region.

Paper

Title

Page

The Project of the HV Axial Injection for the DC-280 Cyclotron at the FLNR JINR

333

G.G. Gulbekyan, V. Bekhterev, S.L. Bogomolov, A.A. Efremov, B. Gikal, I.A. Ivanenko, I.V. Kalagin, N.Yu. Kazarinov, M.V. Khabarov, V.N. Melnikov, N.F. Osipov, S.V. Prokhorov, A. Tikhomirov
JINR, Dubna, Moscow Region, Russia

The project of the high-voltage (HV) axial injection for the DC-280 cyclotron which is being created at the FLNR JINR is presented. The injection system will consists of a Permanent Magnet ECR ion source and a Superconducting ECR ion source, beam analyzing magnets, focusing solenoids, beam choppers, a polyharmonic buncher, 75 kV DC accelerating tubes, a commutating electrostatic deflector and a spiral inflector. One part of the injection system is situated on the HV platform, another part is on the grounded yoke of the DC-280 magnet. The injection system will allow one to inject efficiently ions of elements from Helium to Uranium with the atomic mass to charge ratio in the range of 4-7.5 providing acceleration of ion currents with intensity more than 10 pmkA.

THPSC55

Improvement of the Beam Transmission in the Central Region Of Warsaw U200P Cyclotron

453

O. Steczkiewicz, J. Choinski, P. Gmaj
HIL, Warsaw, Poland
V. Bekhterev, I.A. Ivanenko
JINR, Dubna, Moscow Region, Russia

To date, Warsaw U200P cyclotron exploited a mirror inflector to feed heavy ions extracted from ECR ion source (10 GHz, 11 kV) to the central region of the cyclotron. However, in such configuration very low transmission was reachable after many optimizations. Additionally, the new ECR ion source (14,5 GHz, 14-24 kV) was installed, which offers energies far exceeding capabilities of the currently operated inflector and central region. To avoid these obstacles, we have developed a spiral inflector and redesigned central region of the cyclotron. It was a very challenging task, bearing in mind limited volume of central region in our compact machine, to carve these elements suitably for decent versatility of ion beams offered by Warsaw cyclotron. This project was executed in the collaboration with FLNR in Dubna, Russia. The cyclotron equipped with the new central region works in the "constant orbit" regime. Here we present the results of both computational simulations and measurements of the beam transmission in upgraded central region.