RuPAC2014 - List of Authors (Butenko, A.V.)

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]

WEPSB01

Modernization the Modulator of the RF-Generator Ion Linear Accelerator LU-20

155

V. Kobets, A. Govorov, V. Monchinsky
JINR, Dubna, Moscow Region, Russia
A.V. Butenko, D.E. Donets, A.O. Sidorin
JINR/VBLHEP, Dubna, Moscow region, Russia

The report discusses the replacement of the lamp key the modulator semiconductor. A schematic of the modulator and a semiconductor switch scheme protection against voltage surges in the generator lamp. Replacing the lamp key it possible to increase the output power generator.

THX03

Status of the Nuclotron

283

A.O. Sidorin, N.N. Agapov, A.V. Alfeev, V. Andreev, V. Batin, D.E. Donets, E.D. Donets, E.E. Donets, A.V. Eliseev, A.R. Galimov, E.V. Gorbachev, A. Govorov, E.V. Ivanov, V. Karpinsky, H.G. Khodzhibagiyan, A. Kirichenko, V. Kobets, A.D. Kovalenko, O.S. Kozlov, K.A. Levterov, V.A. Mikhailov, V. Monchinsky, S. Romanov, N. Shurkhno, I. Slepnev, V. Slepnev, A.V. Smirnov, G.V. Trubnikov, A. Tuzikov, B. Vasilishin, V. Volkov
JINR, Dubna, Moscow Region, Russia
O.I. Brovko, A.V. Butenko, A. Nesterov, A.V. Philippov, G.S. Sedykh
JINR/VBLHEP, Dubna, Moscow region, Russia

Since last RuPAC five runs of the Nuclotron operation were performed. Diagnostic and control systems were improved. Commissioning of new quench detection system was completed. Deuteron beam was accelerated up to maximum design energy corresponding to 2 T of the dipole magnetic field. Stochastic cooling of coasting deuteron, coasting and bunched carbon beams was obtained. First run with new heavy ion source was performed. Results of these and other works are presented.

Slides THX03 [1.639 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]

WEPSB01	Modernization the Modulator of the RF-Generator Ion Linear Accelerator LU-20	155
	V. Kobets, A. Govorov, V. Monchinsky JINR, Dubna, Moscow Region, Russia A.V. Butenko, D.E. Donets, A.O. Sidorin JINR/VBLHEP, Dubna, Moscow region, Russia
	The report discusses the replacement of the lamp key the modulator semiconductor. A schematic of the modulator and a semiconductor switch scheme protection against voltage surges in the generator lamp. Replacing the lamp key it possible to increase the output power generator.

THX03	Status of the Nuclotron	283
	A.O. Sidorin, N.N. Agapov, A.V. Alfeev, V. Andreev, V. Batin, D.E. Donets, E.D. Donets, E.E. Donets, A.V. Eliseev, A.R. Galimov, E.V. Gorbachev, A. Govorov, E.V. Ivanov, V. Karpinsky, H.G. Khodzhibagiyan, A. Kirichenko, V. Kobets, A.D. Kovalenko, O.S. Kozlov, K.A. Levterov, V.A. Mikhailov, V. Monchinsky, S. Romanov, N. Shurkhno, I. Slepnev, V. Slepnev, A.V. Smirnov, G.V. Trubnikov, A. Tuzikov, B. Vasilishin, V. Volkov JINR, Dubna, Moscow Region, Russia O.I. Brovko, A.V. Butenko, A. Nesterov, A.V. Philippov, G.S. Sedykh JINR/VBLHEP, Dubna, Moscow region, Russia
	Since last RuPAC five runs of the Nuclotron operation were performed. Diagnostic and control systems were improved. Commissioning of new quench detection system was completed. Deuteron beam was accelerated up to maximum design energy corresponding to 2 T of the dipole magnetic field. Stochastic cooling of coasting deuteron, coasting and bunched carbon beams was obtained. First run with new heavy ion source was performed. Results of these and other works are presented.
	Slides THX03 [1.639 MB]