RuPAC2014 - List of Keywords (tandem-accelerator)

Paper	Title	Other Keywords	Page
WEX01	Development of Accelerator Facilities at FSUE SSC RF – IPPE	ion, high-voltage, heavy-ion, ion-source	120
	V. Romanov, S.V. Bazhal, K.A. Řežvykh IPPE, Obninsk, Russia
	There is a short overview and performed work of FSUE "SSC RF – IPPE" accelerator facilities presented in this paper. This work is reviewed in terms of application in nuclear science and technology. There are some of received results and prospect of accelerator facilities development described.
	Slides WEX01 [0.976 MB]

WEPSB18	Modification of the Argon Stripping Target of the Tandem Accelerator	target, ion, vacuum, proton	194
	Y.M. Ostreinov, A.N. Makarov, S.Yu. Taskaev, P. Vobly BINP SB RAS, Novosibirsk, Russia
	The paper presents and discusses the project of modified gas stripping target. The idea of the target modification is the following. Inside the high-voltage electrode just behind inlet aperture it is proposed to apply 1 T transverse magnetic field using a two-pole permanent magnets. Similar magnets at the exit of the stripping target return proton beam back to the axis of accelerator channel. In this geometry not only significant suppression of ion penetration of the stripping gas into the accelerating channel can be achieved, but also a significant improvement of vacuum conditions in the accelerating channel and reduction of the ultraviolet radiation from the plasma in the stripping target. It is enough to shift the stripping target to a distance greater than the aperture (20 mm) in the high-voltage electrode and to implement a differential gas pumping. The paper presents results of trajectory calculation of the injected ion beam in Comsol Multiphysics. The geometry of the magnetic system and the system of differential gas pumping using turbomolecular pump installed inside the high-voltage electrode are presented.

FRCB01	Problems and Prospects of the Tandem Accelerator with Vacuum Insulation	vacuum, high-voltage, ion, neutron	465
	S.Yu. Taskaev, D.A. Kasatov, A.S. Kuznetsov, A.N. Makarov, I.M. Shchudlo, I.N. Sorokin BINP SB RAS, Novosibirsk, Russia
	Funding: Ministry of Education and Science of Russia (project RFMEFI57614X0181) At BINP for development of boron neutron capture therapy it is proposed and constructed the tandem accelerator with vacuum insulation, which is characterized by rapid acceleration of charged particles. Problems of high-voltage strength gaps due to the large stored energy and strong electrostatic lens are solved. It is obtained a stationary 1.6 mA 2 MeV proton beam having 0.1% energy monochromaticity and 0.5% current stability. It is clarified, that further increase of the proton current in the stable mode without breakdowns is limited by the accompanying current in the high-voltage gaps. It is proposed to make vacuum conditions better in the input of the accelerator using additional cryopump, to modernize argon stripping target by its tilting or shifting and to use differential pumping inside the high-voltage electrode. Obtaining of the 3 mA 2.5 MeV proton beam will allow us to conduct boron neutron capture therapy.
	Slides FRCB01 [0.815 MB]

Paper

Title

Other Keywords

Page

WEX01

Development of Accelerator Facilities at FSUE SSC RF – IPPE

ion, high-voltage, heavy-ion, ion-source

120

V. Romanov, S.V. Bazhal, K.A. Řežvykh
IPPE, Obninsk, Russia

There is a short overview and performed work of FSUE "SSC RF – IPPE" accelerator facilities presented in this paper. This work is reviewed in terms of application in nuclear science and technology. There are some of received results and prospect of accelerator facilities development described.

Slides WEX01 [0.976 MB]

WEPSB18

Modification of the Argon Stripping Target of the Tandem Accelerator

target, ion, vacuum, proton

194

Y.M. Ostreinov, A.N. Makarov, S.Yu. Taskaev, P. Vobly
BINP SB RAS, Novosibirsk, Russia

The paper presents and discusses the project of modified gas stripping target. The idea of the target modification is the following. Inside the high-voltage electrode just behind inlet aperture it is proposed to apply 1 T transverse magnetic field using a two-pole permanent magnets. Similar magnets at the exit of the stripping target return proton beam back to the axis of accelerator channel. In this geometry not only significant suppression of ion penetration of the stripping gas into the accelerating channel can be achieved, but also a significant improvement of vacuum conditions in the accelerating channel and reduction of the ultraviolet radiation from the plasma in the stripping target. It is enough to shift the stripping target to a distance greater than the aperture (20 mm) in the high-voltage electrode and to implement a differential gas pumping. The paper presents results of trajectory calculation of the injected ion beam in Comsol Multiphysics. The geometry of the magnetic system and the system of differential gas pumping using turbomolecular pump installed inside the high-voltage electrode are presented.

FRCB01

Problems and Prospects of the Tandem Accelerator with Vacuum Insulation

vacuum, high-voltage, ion, neutron

465

S.Yu. Taskaev, D.A. Kasatov, A.S. Kuznetsov, A.N. Makarov, I.M. Shchudlo, I.N. Sorokin
BINP SB RAS, Novosibirsk, Russia

Funding: Ministry of Education and Science of Russia (project RFMEFI57614X0181)
At BINP for development of boron neutron capture therapy it is proposed and constructed the tandem accelerator with vacuum insulation, which is characterized by rapid acceleration of charged particles. Problems of high-voltage strength gaps due to the large stored energy and strong electrostatic lens are solved. It is obtained a stationary 1.6 mA 2 MeV proton beam having 0.1% energy monochromaticity and 0.5% current stability. It is clarified, that further increase of the proton current in the stable mode without breakdowns is limited by the accompanying current in the high-voltage gaps. It is proposed to make vacuum conditions better in the input of the accelerator using additional cryopump, to modernize argon stripping target by its tilting or shifting and to use differential pumping inside the high-voltage electrode. Obtaining of the 3 mA 2.5 MeV proton beam will allow us to conduct boron neutron capture therapy.

Slides FRCB01 [0.815 MB]