RUPAC2012 - List of Authors (Pakhomov, N.I.)

Paper	Title	Page
WEPPC014	Performance of the Magnetic System of a 12 MeV UPC Race-Track Microtron	472
	I. Vladimirov MSU SINP, Moscow, Russia I.V. Chernov, V.V. Zacharov Elamt-PM, Kaluga, Russia Yu.A. Kubyshin, J.P. Rigla UPC, Barcelona, Spain N.I. Pakhomov, V.I. Shvedunov MSU, Moscow, Russia
	The performance of the magnetic system of a 12 MeV electron race-track microtron (RTM) which is under construction at the Universitat Politècnica de Catalunya (UPC) is described. The RTM magnetic system consists of two four-pole end magnets with the main field level about 0.8 T, one quadrupole and four beam extraction dipoles. As a source of the magnetic field in these magnets a Sa-Co rare earth permanent magnet material is used. This helps to get a quite compact design of the RTM and allows to place the magnetic systems in a high vacuum environment of the accelerator vacuum chamber. We discuss results of numerical simulations of the tuning of the end magnets by mean of special tuners and describe their engineering design which permits to assemble the magnets and fix the Sa-Co blocks without gluing. Also a method and results of magnetic field distribution measurements and magnet tuning are reported.

WEPPC047	Operational Experience with 55 MeV Pulsed RTM	538
	V.V. Khankin, N.I. Pakhomov, V.I. Shvedunov MSU, Moscow, Russia A.I. Karev, V.G. Raevsky LPI, Moscow, Russia
	Operational experience with 55 MeV RTM * is reported. After RTM commissioning described in * it was installed in specially built bunker with 60-80 cm thick barite concrete walls placed in accelerator hall in order to protect detector equipment from parasitic radiation. New equipment was installed at RTM including new pulsed modulator, high power vacuum window and circulator, new cooling system, additional steering coils. Control system software based on LabView was also modified to make RTM tuning easier. Introduced changes made RTM operation more stable, beam transmission through RTM was improved. After re-commissioning RTM is used for experiments in nuclear physics, in PET isotope production research, in explosive detection experiments etc. *A.I.Karev, A.N.Lebedev, V.G.Raevsky, A.N.Ermakov, A.N.Kamanin, V.V.Khankin, N.I.Pahomov, V.I.Shvedunov, etc., 55 MeV special purpose race-track microtron commissioning, in Proc. RuPAC-2010, p.316-318

WEPPC048	Status of 1 MeV 25 kW CW Electron Accelerator	541
	D.S. Yurov MSU SINP, Moscow, Russia A.S. Alimov, B.S. Ishkanov, N.I. Pakhomov, V.P. Sakharov, V.I. Shvedunov MSU, Moscow, Russia
	Status of 1 MeV 25 kW continuous wave (CW) linear electron accelerator for radiation technologies which is under construction at SINP MSU is described. Driven by 50 kW CW klystron on-axis coupled standing wave accelerating structure was optimized, manufactured and tuned. The results of accelerating structure measurements and tuning are presented. RF system, high voltage, vacuum and control systems of the accelerator are described. New magnetic system forming output beam irradiation field is also described.

Paper

Title

Page

Performance of the Magnetic System of a 12 MeV UPC Race-Track Microtron

472

I. Vladimirov
MSU SINP, Moscow, Russia
I.V. Chernov, V.V. Zacharov
Elamt-PM, Kaluga, Russia
Yu.A. Kubyshin, J.P. Rigla
UPC, Barcelona, Spain
N.I. Pakhomov, V.I. Shvedunov
MSU, Moscow, Russia

The performance of the magnetic system of a 12 MeV electron race-track microtron (RTM) which is under construction at the Universitat Politècnica de Catalunya (UPC) is described. The RTM magnetic system consists of two four-pole end magnets with the main field level about 0.8 T, one quadrupole and four beam extraction dipoles. As a source of the magnetic field in these magnets a Sa-Co rare earth permanent magnet material is used. This helps to get a quite compact design of the RTM and allows to place the magnetic systems in a high vacuum environment of the accelerator vacuum chamber. We discuss results of numerical simulations of the tuning of the end magnets by mean of special tuners and describe their engineering design which permits to assemble the magnets and fix the Sa-Co blocks without gluing. Also a method and results of magnetic field distribution measurements and magnet tuning are reported.

WEPPC047

Operational Experience with 55 MeV Pulsed RTM

538

V.V. Khankin, N.I. Pakhomov, V.I. Shvedunov
MSU, Moscow, Russia
A.I. Karev, V.G. Raevsky
LPI, Moscow, Russia

Operational experience with 55 MeV RTM * is reported. After RTM commissioning described in * it was installed in specially built bunker with 60-80 cm thick barite concrete walls placed in accelerator hall in order to protect detector equipment from parasitic radiation. New equipment was installed at RTM including new pulsed modulator, high power vacuum window and circulator, new cooling system, additional steering coils. Control system software based on LabView was also modified to make RTM tuning easier. Introduced changes made RTM operation more stable, beam transmission through RTM was improved. After re-commissioning RTM is used for experiments in nuclear physics, in PET isotope production research, in explosive detection experiments etc.
*A.I.Karev, A.N.Lebedev, V.G.Raevsky, A.N.Ermakov, A.N.Kamanin, V.V.Khankin, N.I.Pahomov, V.I.Shvedunov, etc., 55 MeV special purpose race-track microtron commissioning, in Proc. RuPAC-2010, p.316-318

WEPPC048

Status of 1 MeV 25 kW CW Electron Accelerator

541

D.S. Yurov
MSU SINP, Moscow, Russia
A.S. Alimov, B.S. Ishkanov, N.I. Pakhomov, V.P. Sakharov, V.I. Shvedunov
MSU, Moscow, Russia

Status of 1 MeV 25 kW continuous wave (CW) linear electron accelerator for radiation technologies which is under construction at SINP MSU is described. Driven by 50 kW CW klystron on-axis coupled standing wave accelerating structure was optimized, manufactured and tuned. The results of accelerating structure measurements and tuning are presented. RF system, high voltage, vacuum and control systems of the accelerator are described. New magnetic system forming output beam irradiation field is also described.