COOL2021 - List of Authors (Baldin, A.A.)

Paper	Title	Page
S101	NICA Synchrotrons and their Cooling Systems	1
	E. Syresin, A.A. Baldin, A.V. Butenko, A.G. Kobets, S.A. Melnikov, I.N. Meshkov, S.V. Semenov, A.S. Sergeev, A.O. Sidorin, G.V. Trubnikov JINR, Dubna, Moscow Region, Russia A.V. Bubley, N.V. Mityanina, V.V. Parkhomchuk, V.B. Reva BINP SB RAS, Novosibirsk, Russia I.V. Gorelyshev, K.G. Osipov JINR/VBLHEP, Dubna, Moscow region, Russia
	The Nuclotron-based Ion Collider fAcility (NICA) is under construction at JINR. The NICA goal is to provide of colliding beams for studies of hot and dense strongly interacting baryonic matter and spin physics. The ion mode accelerator facility of the NICA Collider consists of the following accelerators: The new operating Heavy Ion Linac (HILAC) with RFQ and IH DTL sections at energy 3.2 MeV/u, new operating superconducting Booster synchrotron at energy up 600 MeV/u, operating superconducting synchrotron Nuclotron for the gold ion energy 3.9 GeV/u and two Collider storage rings with two interaction points. There is the electron cooling system in the Booster synchrotron, the Collider has elec-tron and stochastic cooling systems. The status of the NICA acceleration complex and its cooling systems is presented. The application of the cooling systems to the operation of the NICA accelerators ’ the Booster and the Nuclotron are discussed.
	Slides S101 [27.013 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-COOL2021-S101
About •	paper received ※ 22 October 2021 paper accepted ※ 22 November 2021 issue date ※ 18 November 2021
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

S404	Electron Cooler of the NICA Booster and Its Applications	26
	S.A. Melnikov, E.V. Ahmanova, A.A. Baldin, A.G. Kobets, D.S. Korovkin, O. Orlov, S.V. Semenov, A.S. Sergeev, A.A. Sidorin JINR, Dubna, Moscow Region, Russia A.V. Butenko, I.V. Gorelyshev, I.N. Meshkov, K.G. Osipov, A.V. Philippov, A.O. Sidorin, E. Syresin JINR/VBLHEP, Dubna, Moscow region, Russia
	The report presents the results obtained during the commissioning the Electron Cooling System (ECS) of the Booster, the first in the chain of three synchrotrons of the NICA accelerator complex. The dependences of the electron beam current on the ECS parameters for different electron energy values were experimentally obtained. The specific features of operation of electron gun of the Booster ECS are hollow beam formation due to creation of virtual cathode confirmed both experiments and by numerical simulation. The work was performed without an ion beam and with a circulating ion beams 4He¹⁺ and 56Fe¹⁴⁺ at ion injection energy of 3.2 MeV/u. In the first experiment (December 2020) with a circulating 4He¹⁺ion beam, the effect of reducing the lifetime of the circulating ions was observed when the velocities of the cooling electrons and the cooled ions coincide. In second experiment (September 2021) the effect of electron cooling of 56Fe¹⁴⁺ ion beam was registered both for longitudinal and transverse degrees of freedom using ‘Schottky noise spectrometer and ionization profilometer.
	Slides S404 [2.477 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-COOL2021-S404
About •	paper received ※ 01 November 2021 paper accepted ※ 22 November 2021 issue date ※ 27 November 2021
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

NICA Synchrotrons and their Cooling Systems

1

E. Syresin, A.A. Baldin, A.V. Butenko, A.G. Kobets, S.A. Melnikov, I.N. Meshkov, S.V. Semenov, A.S. Sergeev, A.O. Sidorin, G.V. Trubnikov
JINR, Dubna, Moscow Region, Russia
A.V. Bubley, N.V. Mityanina, V.V. Parkhomchuk, V.B. Reva
BINP SB RAS, Novosibirsk, Russia
I.V. Gorelyshev, K.G. Osipov
JINR/VBLHEP, Dubna, Moscow region, Russia

The Nuclotron-based Ion Collider fAcility (NICA) is under construction at JINR. The NICA goal is to provide of colliding beams for studies of hot and dense strongly interacting baryonic matter and spin physics. The ion mode accelerator facility of the NICA Collider consists of the following accelerators: The new operating Heavy Ion Linac (HILAC) with RFQ and IH DTL sections at energy 3.2 MeV/u, new operating superconducting Booster synchrotron at energy up 600 MeV/u, operating superconducting synchrotron Nuclotron for the gold ion energy 3.9 GeV/u and two Collider storage rings with two interaction points. There is the electron cooling system in the Booster synchrotron, the Collider has elec-tron and stochastic cooling systems. The status of the NICA acceleration complex and its cooling systems is presented. The application of the cooling systems to the operation of the NICA accelerators ’ the Booster and the Nuclotron are discussed.

Slides S101 [27.013 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-COOL2021-S101

About •

paper received ※ 22 October 2021 paper accepted ※ 22 November 2021 issue date ※ 18 November 2021

Export •

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

S404

Electron Cooler of the NICA Booster and Its Applications

26

S.A. Melnikov, E.V. Ahmanova, A.A. Baldin, A.G. Kobets, D.S. Korovkin, O. Orlov, S.V. Semenov, A.S. Sergeev, A.A. Sidorin
JINR, Dubna, Moscow Region, Russia
A.V. Butenko, I.V. Gorelyshev, I.N. Meshkov, K.G. Osipov, A.V. Philippov, A.O. Sidorin, E. Syresin
JINR/VBLHEP, Dubna, Moscow region, Russia

The report presents the results obtained during the commissioning the Electron Cooling System (ECS) of the Booster, the first in the chain of three synchrotrons of the NICA accelerator complex. The dependences of the electron beam current on the ECS parameters for different electron energy values were experimentally obtained. The specific features of operation of electron gun of the Booster ECS are hollow beam formation due to creation of virtual cathode confirmed both experiments and by numerical simulation. The work was performed without an ion beam and with a circulating ion beams 4He¹⁺ and 56Fe¹⁴⁺ at ion injection energy of 3.2 MeV/u. In the first experiment (December 2020) with a circulating 4He¹⁺ion beam, the effect of reducing the lifetime of the circulating ions was observed when the velocities of the cooling electrons and the cooled ions coincide. In second experiment (September 2021) the effect of electron cooling of 56Fe¹⁴⁺ ion beam was registered both for longitudinal and transverse degrees of freedom using ‘Schottky noise spectrometer and ionization profilometer.

Slides S404 [2.477 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-COOL2021-S404

About •

paper received ※ 01 November 2021 paper accepted ※ 22 November 2021 issue date ※ 27 November 2021

Export •

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