RuPAC2021 - List of Keywords (induction)

Paper	Title	Other Keywords	Page
MOY05	Linear Induction Accelerator LIA-2 Upgrade	cathode, simulation, focusing, space-charge	17
	D.A. Starostenko BINP SB RAS, Novosibirsk, Russia
	X-ray complexes based on a linear induction accelerator are designed to study of high density objects. It requires of high-current electron beam to obtain a small spot and bright x-ray source using a conversion target. The electrons source in such installations is injectors capable generate pulses with a duration from tens of nanoseconds to several microseconds and a current of several kiloamperes. The transportation and focusing such beams into diameter about 1 mm is difficult due to of the space charge effect. In similar induction accelerators (DARHT, AIRIX, FXR, etc.), auto-emission cathodes are used to obtain high-current electron beams. The use of a thermionic cathode, in compared to auto-emission cathode, provides stable generation of several pulses with a time interval of several microseconds, but makes high requirements on the injector vacuum system: not less than 10^-7 Torr.
	Slides MOY05 [3.946 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOY05
About •	Received ※ 24 September 2021 — Revised ※ 05 October 2021 — Accepted ※ 13 October 2021 — Issued ※ 23 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOPSA13	Computer Simulation of the Mechanical Behavior of the FFS Superconducting Quadrupole Coil	quadrupole, simulation, vacuum, experiment	156
	A.D. Riabchikova, A.I. Ageev, Altukhov, Y.V. Altukhov, I. Bogdanov, S. Kozub, T. Ryabov, L. Tkachenko IHEP, Moscow Region, Russia
	In the frame of the work, carried out at the Research Center of the Kurchatov Institute - IHEP on the development of four wide-aperture superconducting quadrupoles, a mathematical study of the mechanical behavior of the coil block of these magnets was carried out. The quadrupoles are intended for use in the magnetic final focusing system (FFS) of the ion beam in the experiments of the HED@FAIR collaboration. At the design stage of superconducting magnets, it is necessary to perform mathematical modeling to analyze the deformation of coil blocks during the assembly stages, cooling to operating temperature and the influence of ponderomotor forces. The results of computer simulation of changes in the geometry and distribution of forces in the coil block at all these stages are necessary to determine the value of the preliminary mechanical stress in the superconducting coil. The main results of numerical simulation of the mechanics of these magnets are presented in the article.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA13
About •	Received ※ 26 September 2021 — Revised ※ 27 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 09 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOPSA52	Modeling of the Magnetic System of the Cyclotron of Multicharged Ions	cyclotron, acceleration, simulation, light-ion	216
	Yu.K. Osina, A.V. Galchuck, Yu.N. Gavrish, Yu.I. Stogov NIIEFA, St. Petersburg, Russia
	This paper presents the results of the calculation of the magnetic system of the cyclotron for accelerating of multicharged ions developed at NIIEFA JSC. The cyclotron complex is designed to generate ions with a mass-to-charge ratio in the range A/Z= 3/7, accelerate them to energies in the range of 7.5-15 MeV per nucleon. The cyclotron electromagnet has a four-sector structure, with a pole diameter of 4 m. Radial coils placed on the poles under the sectors are designed to adjust the magnetic field for providing isochronous acceleration conditions for different ions. A group of azimuthal coils designed to correct the first harmonic of the magnetic field and to center the orbits of the accelerated ion, as well as to ad-just the position of the axial symmetry plane of the magnetic field is located on the sectors. The required magnetic field topology for ion acceleration was formed in the induction range of 1.29-1.6 T. Calculations were per-formed for the 1/8 part of the electromagnet. A mode was chosen in which the dependence of induction on the radius, which provides isochronism, is realized due to the shape of "iron". For this mode with an induction in the center of 1.44 T, the shape of side plates, plugs, and sec-tor chamfers was determined. The currents in radial coils and the main dynamic characteristics of the cyclotron magnetic field for ion acceleration in the energy control range were calculated using the obtained magnetic field maps.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA52
About •	Received ※ 25 September 2021 — Revised ※ 29 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 18 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

MOY05

Linear Induction Accelerator LIA-2 Upgrade

cathode, simulation, focusing, space-charge

17

D.A. Starostenko
BINP SB RAS, Novosibirsk, Russia

X-ray complexes based on a linear induction accelerator are designed to study of high density objects. It requires of high-current electron beam to obtain a small spot and bright x-ray source using a conversion target. The electrons source in such installations is injectors capable generate pulses with a duration from tens of nanoseconds to several microseconds and a current of several kiloamperes. The transportation and focusing such beams into diameter about 1 mm is difficult due to of the space charge effect. In similar induction accelerators (DARHT, AIRIX, FXR, etc.), auto-emission cathodes are used to obtain high-current electron beams. The use of a thermionic cathode, in compared to auto-emission cathode, provides stable generation of several pulses with a time interval of several microseconds, but makes high requirements on the injector vacuum system: not less than 10^-7 Torr.

Slides MOY05 [3.946 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOY05

About •

Received ※ 24 September 2021 — Revised ※ 05 October 2021 — Accepted ※ 13 October 2021 — Issued ※ 23 October 2021

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOPSA13

Computer Simulation of the Mechanical Behavior of the FFS Superconducting Quadrupole Coil

quadrupole, simulation, vacuum, experiment

156

A.D. Riabchikova, A.I. Ageev, Altukhov, Y.V. Altukhov, I. Bogdanov, S. Kozub, T. Ryabov, L. Tkachenko
IHEP, Moscow Region, Russia

In the frame of the work, carried out at the Research Center of the Kurchatov Institute - IHEP on the development of four wide-aperture superconducting quadrupoles, a mathematical study of the mechanical behavior of the coil block of these magnets was carried out. The quadrupoles are intended for use in the magnetic final focusing system (FFS) of the ion beam in the experiments of the HED@FAIR collaboration. At the design stage of superconducting magnets, it is necessary to perform mathematical modeling to analyze the deformation of coil blocks during the assembly stages, cooling to operating temperature and the influence of ponderomotor forces. The results of computer simulation of changes in the geometry and distribution of forces in the coil block at all these stages are necessary to determine the value of the preliminary mechanical stress in the superconducting coil. The main results of numerical simulation of the mechanics of these magnets are presented in the article.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA13

About •

Received ※ 26 September 2021 — Revised ※ 27 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 09 October 2021

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOPSA52

Modeling of the Magnetic System of the Cyclotron of Multicharged Ions

cyclotron, acceleration, simulation, light-ion

216

Yu.K. Osina, A.V. Galchuck, Yu.N. Gavrish, Yu.I. Stogov
NIIEFA, St. Petersburg, Russia

This paper presents the results of the calculation of the magnetic system of the cyclotron for accelerating of multicharged ions developed at NIIEFA JSC. The cyclotron complex is designed to generate ions with a mass-to-charge ratio in the range A/Z= 3/7, accelerate them to energies in the range of 7.5-15 MeV per nucleon. The cyclotron electromagnet has a four-sector structure, with a pole diameter of 4 m. Radial coils placed on the poles under the sectors are designed to adjust the magnetic field for providing isochronous acceleration conditions for different ions. A group of azimuthal coils designed to correct the first harmonic of the magnetic field and to center the orbits of the accelerated ion, as well as to ad-just the position of the axial symmetry plane of the magnetic field is located on the sectors. The required magnetic field topology for ion acceleration was formed in the induction range of 1.29-1.6 T. Calculations were per-formed for the 1/8 part of the electromagnet. A mode was chosen in which the dependence of induction on the radius, which provides isochronism, is realized due to the shape of "iron". For this mode with an induction in the center of 1.44 T, the shape of side plates, plugs, and sec-tor chamfers was determined. The currents in radial coils and the main dynamic characteristics of the cyclotron magnetic field for ion acceleration in the energy control range were calculated using the obtained magnetic field maps.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA52

About •

Received ※ 25 September 2021 — Revised ※ 29 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 18 October 2021

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)