RuPAC2014 - Table of Session: TUCB (Accelerator technologies (magnetic, acceleration and vacuum systems))

Paper

Title

Page

Ultrahigh Vacuum in Superconducting Synchrotrons

23

A.V. Smirnov, A.V. Butenko, A.R. Galimov
JINR, Dubna, Moscow Region, Russia
A.M. Bazanov, A. Nesterov
JINR/VBLHEP, Dubna, Moscow region, Russia

The achievement of ultrahigh vacuum conditions in the range of 10^-10 – 10^-12 Torr is a very complicate task for charged particle accelerators. For superconducting accelerators the main rest gas is hydrogen which does not freeze effectively on the chamber wall even under the liquid helium temperature. Fast ramp of the magnetic field in the superconducting synchrotrons leads to the heating of the vacuum chamber that brings an additional problem for the achievement of the ultrahigh vacuum. In this talk the review of ultrahigh vacuum systems in superconducting accelerators is presented. Non-evaporated getters under the liquid nitrogen temperature are planned to the achievement of necessary vacuum conditions in the new accelerator complex of the NICA project (JINR, Russia).

Slides TUCB01 [2.220 MB]

TUCB02

RF System of the Booster of NICA Facility

26

G.Y. Kurkin, A.M. Batrakov, G.A. Fatkin, Ya.G. Kruchkov, S.A. Krutikhin, S.V. Motygin, A.M. Pilan
BINP SB RAS, Novosibirsk, Russia
G.A. Fatkin
NSU, Novosibirsk, Russia

The project NICA is being constructed in JINR, Dubna to provide collisions of heavy ion beams in the energy range from 1 to 4.5 GeV/u at the luminosity level of 1*10²⁷ cm^-2*s⁻¹. One of the elements in the collider injection chain is BUSTER – a cycling accelerator of ions 197Au³²⁺. The injection energy of particles is 6.2 MeV/u, extraction energy is 600 MeV/u. Two RF stations are to provide 10 kV of acceleration voltage. Frequency range of operation of the stations in the injector chain is from 634 kHz to 2400 kHz. The provisions are made for autonomous mode of operation of the stations in the frequency range of 0.5 – 5.5 MHz at the same accelerating voltage. Amorphous metal rings of Russian production are used in the RF cavities. RF stations are created in the Budker Institute of Nuclear Physics, SB RAS, Novosibirsk. The stations are tested in the operative mode and will be delivered to the customer in October, 2014. Main design features and parameters of RF cavity, power generator and control system of the stations are described in the paper.

Slides TUCB02 [1.265 MB]

Paper	Title	Page
TUCB01	Ultrahigh Vacuum in Superconducting Synchrotrons	23
	A.V. Smirnov, A.V. Butenko, A.R. Galimov JINR, Dubna, Moscow Region, Russia A.M. Bazanov, A. Nesterov JINR/VBLHEP, Dubna, Moscow region, Russia
	The achievement of ultrahigh vacuum conditions in the range of 10^-10 – 10^-12 Torr is a very complicate task for charged particle accelerators. For superconducting accelerators the main rest gas is hydrogen which does not freeze effectively on the chamber wall even under the liquid helium temperature. Fast ramp of the magnetic field in the superconducting synchrotrons leads to the heating of the vacuum chamber that brings an additional problem for the achievement of the ultrahigh vacuum. In this talk the review of ultrahigh vacuum systems in superconducting accelerators is presented. Non-evaporated getters under the liquid nitrogen temperature are planned to the achievement of necessary vacuum conditions in the new accelerator complex of the NICA project (JINR, Russia).
	Slides TUCB01 [2.220 MB]

TUCB02	RF System of the Booster of NICA Facility	26
	G.Y. Kurkin, A.M. Batrakov, G.A. Fatkin, Ya.G. Kruchkov, S.A. Krutikhin, S.V. Motygin, A.M. Pilan BINP SB RAS, Novosibirsk, Russia G.A. Fatkin NSU, Novosibirsk, Russia
	The project NICA is being constructed in JINR, Dubna to provide collisions of heavy ion beams in the energy range from 1 to 4.5 GeV/u at the luminosity level of 110²⁷ cm^-2s⁻¹. One of the elements in the collider injection chain is BUSTER – a cycling accelerator of ions 197Au³²⁺. The injection energy of particles is 6.2 MeV/u, extraction energy is 600 MeV/u. Two RF stations are to provide 10 kV of acceleration voltage. Frequency range of operation of the stations in the injector chain is from 634 kHz to 2400 kHz. The provisions are made for autonomous mode of operation of the stations in the frequency range of 0.5 – 5.5 MHz at the same accelerating voltage. Amorphous metal rings of Russian production are used in the RF cavities. RF stations are created in the Budker Institute of Nuclear Physics, SB RAS, Novosibirsk. The stations are tested in the operative mode and will be delivered to the customer in October, 2014. Main design features and parameters of RF cavity, power generator and control system of the stations are described in the paper.
	Slides TUCB02 [1.265 MB]