RuPAC2016 - List of Authors (Khodzhibagiyan, H.G.)

Paper	Title	Page
THCDMH03	The Progress on Manufacturing and Testing of the SC Magnets for the NICA Booster Synchrotron	144
	H.G. Khodzhibagiyan, N.N. Agapov, P.G. Akishin, V.V. Borisov, A.V. Bychkov, A.M. Donyagin, A.R. Galimov, O. Golubitsky, V. Karpinsky, B.Yu. Kondratiev, S.A. Korovkin, S.A. Kostromin, A.V. Kudashkin, G.L. Kuznetsov, D.N. Nikiforov, A.V. Shemchuk, S.A. Smirnov, A.Y. Starikov, G.V. Trubnikov JINR, Dubna, Moscow Region, Russia
	NICA is a new accelerator collider complex under construction at the Joint Institute for Nuclear Research in Dubna. The facility is aimed at providing collider experiments with heavy ions up to Gold in the center of mass energy from 4 to 11 GeV/u and an average luminosity up to 1*10²⁷ cm^-2 s⁻¹ for Au⁷⁹⁺. The collisions of polarized deuterons are also foreseen. The facility includes two injector chains, a new superconducting booster synchrotron, the existing 6 AGeV superconducting synchrotron Nuclotron, and a new superconducting collider consisting of two rings, each 503 m in circumference. The booster synchrotron is based on an iron-dominated "window frame"- type magnet with a hollow superconductor winding analogous to the Nuclotron magnet. The design of superconducting magnets for the NICA booster synchrotron is described. The progress of work on the manufacturing and testing of the magnets is discussed. The calculated and measured values of the characteristics of the magnets are presented. The status of the facility for serial test of superconducting magnets for the NICA and FAIR projects is described.
	Slides THCDMH03 [8.068 MB]
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THCDMH04	The FAIR-NICA Collaboration for Production and Testing of Superconducting Accelerator Magnets
	E.S. Fischer, A. Bleile, J.P. Meier, A. Mierau, P. Schnizer, P.J. Spiller, K. Sugita GSI, Darmstadt, Germany H.G. Khodzhibagiyan, S.A. Kostromin, G.V. Trubnikov JINR, Dubna, Moscow Region, Russia
	Based on a common R&D process GSI Darmstadt and JINR Dubna had optimized the operation parameters of their fast ramped accelerator magnets designated for the heavy ion synchrotron SIS100 of the FAIR project as well as for the booster synchrotron and the heavy ion collider of the NICA project. These facilities are now under construction and the series production of the main magnets and correctors for SIS100 and NICA booster was launched. In parallel the superconducting magnet test facilities were commissioned in both institutes. The quadrupole and corrector magnets of the SIS100 will be produced by JINR as a Russian In-Kind contribution to FAIR and cold tested at the common NICA test facility in Dubna. We summarize the main parameters of the optimized magnets related to the magnetic field quality and the cooling efficiency, present the first production experiences and test results and give an outlook on the overall project schedules.
	Slides THCDMH04 [19.788 MB]
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FRCAMH01	Status of the Nuclotron	150
	A.O. Sidorin, N.N. Agapov, A.V. Alfeev, V. Andreev, V. Batin, O.I. Brovko, V.V. Bugaev, A.V. Butenko, D.E. Donets, A.V. Eliseev, V.V. Fimushkin, E.V. Gorbachev, A. Govorov, A.Yu. Grebentsov, 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.A. Monchinsky, A. Nesterov, Yu.M. Nozhenko, A.L. Osipenkov, S. Romanov, P.A. Rukojatkin, A.A. Shurygin, I. Slepnev, V. Slepnev, A.V. Smirnov, E. Syresin, G.V. Trubnikov, A. Tuzikov, B. Vasilishin, V. Volkov JINR, Dubna, Moscow Region, Russia A. Belov RAS/INR, Moscow, Russia I.V. Gorelyshev, A.V. Philippov JINR/VBLHEP, Dubna, Moscow region, Russia A.O. Sidorin St. Petersburg University, St. Petersburg, Russia
	Since last RuPAC two runs of the Nuclotron operation were performed: in January - March of 2015 and June 2016. Presently we are providing the run, which has been started at the end of October and will be continued up to the end of December. The facility development is aimed to the performance increase for current physical program realization and preparation to the NICA Booster construction and Baryonic Matter at Nuclotron experiment.
	Slides FRCAMH01 [20.777 MB]
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FRCAMH05	Booster Synchrotron at NICA Accelerator Complex	160
	A. Tuzikov, O.I. Brovko, A.V. Butenko, A.V. Eliseev, A.A. Fateev, V. Karpinsky, H.G. Khodzhibagiyan, S.A. Kostromin, I.N. Meshkov, V.A. Mikhaylov, A.O. Sidorin, A.I. Sidorov, A.V. Smirnov, E. Syresin, G.V. Trubnikov, V. Volkov JINR, Dubna, Moscow Region, Russia O. Anchugov, V.A. Kiselev, D.A. Shvedov, A.N. Zhuravlev BINP SB RAS, Novosibirsk, Russia
	NICA is the new complex being constructed on the JINR aimed to provide collider experiments with ions up to aurum at energy of 4.5x4.5 GeV/u. The NICA layout includes 600 MeV/u Booster synchrotron as a part of the injection chain of the NICA Collider. The main goals of the Booster are the following: accumulation of 4E10⁹ Au³¹⁺ ions; acceleration of the heavy ions up to energy required for effective stripping; forming of the required beam emittance with electron cooling system. The layout makes it possible to place the Booster having 210.96 m circumference and four fold symmetry lattice inside the yoke of the former Synchrophasotron. The features of the Booster, its main systems, their parameters and current status are presented in this paper.
	Slides FRCAMH05 [16.830 MB]
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FRCAMH07	NICA Collider Lattice Optimization	166
	O.S. Kozlov, A.V. Butenko, H.G. Khodzhibagiyan, S.A. Kostromin, I.N. Meshkov, A.O. Sidorin, E. Syresin, G.V. Trubnikov JINR, Dubna, Moscow Region, Russia
	The Nuclotron-based Ion Collider fAcility (NICA) - accelerator complex is being constructed at JINR. It is aimed to the collider experiments with ions and protons and has to provide the ion-ion (Au+79) and ion-proton collision in the energy range of 1-4.5 GeV/amu and also polarized proton-proton and deuteron-deuteron collisions. Each of two collider ring has a racetrack shape with two bending arcs and two long straight sections. Beams are separated in vertical plane and come into collisions in two IPs. Dynamic aperture of the NICA collider has been studied for different parameters of the optics at IP. Effects of the fringe fields of structural elements are considered in the optimization of the collider lattice.
	Slides FRCAMH07 [4.547 MB]
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THPSC005	Magnetic Measurement System For the NICA Collider Dual Dipoles	547
	M.M. Shandov, V.V. Borisov, A.V. Bychkov, A.M. Donyagin, O. Golubitsky, H.G. Khodzhibagiyan, S.A. Kostromin, M.M. Omelyanenko JINR, Dubna, Russia A.V. Shemchuk JINR/VBLHEP, Dubna, Moscow region, Russia
	NICA collider magnetic system consists of 80 dual dipole superconducting magnets. Measurement of magnetic field parameters is assumed for each collider magnets. This paper describes magnetic measurements methods and developing of magnetic measurements system.
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THPSC010	Magnetic Measurement System For The NICA Quadrupole Magnets	559
	A.V. Shemchuk JINR/VBLHEP, Dubna, Moscow region, Russia V.V. Borisov, A.V. Bychkov, A.M. Donyagin, O. Golubitsky, H.G. Khodzhibagiyan, S.A. Kostromin, M.M. Omelyanenko, M.M. Shandov JINR, Dubna, Russia
	NICA booster magnetic system consists of 40 dipole and 48 quadrupole superconducting magnets. Measurement of magnetic field parameters is assumed for each booster magnets. The booster quadrupole is 0.45 m-long, 47.5 mm pole radius magnet with design similar to the Nuclotron type quadrupole magnet. Focusing and defocusing quadrupole magnets are jointed in doublets. They will produce fields up to 21.5 T/m. Two magnetic measurements system with tangential and radial coils arrays were developed and produced. This paper describes the magnetic measurements methods as well as the first results of the magnetic measurements.
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THPSC018	Achievement of Necessary Vacuum Conditions in the NICA Accelerator Complex	575
	A.V. Smirnov, A.M. Bazanov, A.V. Butenko, A.R. Galimov, H.G. Khodzhibagiyan, A. Nesterov, A.N. Svidetelev, A. Tikhomirov JINR, Dubna, Moscow Region, Russia
	NICA is a new accelerator collider complex under construction at the Joint Institute for Nuclear Research in Dubna. The facility is aimed at providing collider experiments with heavy ions up to Gold in a center of mass energy range from 4 to 11 GeV/u and an average luminosity up to 10²⁷ cm^-2 s^-1. The collisions of polarized deuterons are also foreseen. The facility includes two injector chains, a new superconducting booster synchrotron, the existing superconducting synchrotron Nuclotron, and a new superconducting collider consisting of two rings, each of about 500 m in circumference. Vacuum volumes of the accelerator booster and Nuclotron and the superconducting collider are divided into volumes of superconducting elements thermal enclosure and beam chambers. The beam chambers consist regular cold periods, which are at a temperature of 4.2K to 80K, and warm irregular gaps at room temperature. Operating pressure in the thermal enclosure vacuum volumes have to maintained in the range of 10^-7 to 10^-4 mbar, in the beam chamber cold and warm areas - not more than 2·10^-11 mbar. The requirements for materials, surface preparation conditions and the level of leakage in the vacuum volume are set out. The description of way to achievement and maintenance of the working vacuum in the NICA project are presented.
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THPSC042	Testing of SC-magnets of NICA Booster & Collider
	S.A. Kostromin, V.V. Borisov, A.M. Donyagin, A.R. Galimov, O. Golubitsky, H.G. Khodzhibagiyan, B.Yu. Kondratiev, S.A. Korovkin, G.L. Kuznetsov, D.N. Nikiforov, A.Y. Starikov, A. Tikhomirov JINR, Dubna, Moscow Region, Russia T.E. Serochkina, A.V. Shemchuk JINR/VBLHEP, Dubna, Moscow region, Russia
	Serial tests of sc-magnets of NICA Booster started at the dedicated facility of LHEP JINR. Magnets' assembly and testing workflow presented. Main steps of the magnet preparation to the cryogenics tests are described. First results of serial tests are presented and discussed.
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THPSC043	Series Magnetic Measurements Of NICA Booster Dipoles	629
	V.V. Borisov, A.V. Bychkov, A.M. Donyagin, O. Golubitsky, H.G. Khodzhibagiyan, S.A. Kostromin, M.M. Omelyanenko, M.M. Shandov JINR, Dubna, Russia A.V. Shemchuk JINR/VBLHEP, Dubna, Moscow region, Russia
	NICA booster magnetic system consists of 40 dipole and 48 quadrupole superconducting (SC) magnets. Measurement of magnetic field parameters is assumed for each booster magnets. At the moment six series dipole magnets are assembled and have passed all tests. Booster dipole magnets are 2.14 m-long, 128 /65 mm (h/v) aperture magnets with design similar to Nuclotron dipole magnet but with curved (14.1 m radius) yoke. They will produce fields up to 1.8 T. The magnetic field parameters will be measured at "warm" (300 K) and "cold" (4.5 K) conditions. The obtained results of magnetic measurements of first five magnets are summarized here.
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Paper

Title

Page

The Progress on Manufacturing and Testing of the SC Magnets for the NICA Booster Synchrotron

144

H.G. Khodzhibagiyan, N.N. Agapov, P.G. Akishin, V.V. Borisov, A.V. Bychkov, A.M. Donyagin, A.R. Galimov, O. Golubitsky, V. Karpinsky, B.Yu. Kondratiev, S.A. Korovkin, S.A. Kostromin, A.V. Kudashkin, G.L. Kuznetsov, D.N. Nikiforov, A.V. Shemchuk, S.A. Smirnov, A.Y. Starikov, G.V. Trubnikov
JINR, Dubna, Moscow Region, Russia

NICA is a new accelerator collider complex under construction at the Joint Institute for Nuclear Research in Dubna. The facility is aimed at providing collider experiments with heavy ions up to Gold in the center of mass energy from 4 to 11 GeV/u and an average luminosity up to 1*10²⁷ cm^-2 s⁻¹ for Au⁷⁹⁺. The collisions of polarized deuterons are also foreseen. The facility includes two injector chains, a new superconducting booster synchrotron, the existing 6 AGeV superconducting synchrotron Nuclotron, and a new superconducting collider consisting of two rings, each 503 m in circumference. The booster synchrotron is based on an iron-dominated "window frame"- type magnet with a hollow superconductor winding analogous to the Nuclotron magnet. The design of superconducting magnets for the NICA booster synchrotron is described. The progress of work on the manufacturing and testing of the magnets is discussed. The calculated and measured values of the characteristics of the magnets are presented. The status of the facility for serial test of superconducting magnets for the NICA and FAIR projects is described.

Slides THCDMH03 [8.068 MB]

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THCDMH04

The FAIR-NICA Collaboration for Production and Testing of Superconducting Accelerator Magnets

E.S. Fischer, A. Bleile, J.P. Meier, A. Mierau, P. Schnizer, P.J. Spiller, K. Sugita
GSI, Darmstadt, Germany
H.G. Khodzhibagiyan, S.A. Kostromin, G.V. Trubnikov
JINR, Dubna, Moscow Region, Russia

Based on a common R&D process GSI Darmstadt and JINR Dubna had optimized the operation parameters of their fast ramped accelerator magnets designated for the heavy ion synchrotron SIS100 of the FAIR project as well as for the booster synchrotron and the heavy ion collider of the NICA project. These facilities are now under construction and the series production of the main magnets and correctors for SIS100 and NICA booster was launched. In parallel the superconducting magnet test facilities were commissioned in both institutes. The quadrupole and corrector magnets of the SIS100 will be produced by JINR as a Russian In-Kind contribution to FAIR and cold tested at the common NICA test facility in Dubna. We summarize the main parameters of the optimized magnets related to the magnetic field quality and the cooling efficiency, present the first production experiences and test results and give an outlook on the overall project schedules.

Slides THCDMH04 [19.788 MB]

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FRCAMH01

Status of the Nuclotron

150

A.O. Sidorin, N.N. Agapov, A.V. Alfeev, V. Andreev, V. Batin, O.I. Brovko, V.V. Bugaev, A.V. Butenko, D.E. Donets, A.V. Eliseev, V.V. Fimushkin, E.V. Gorbachev, A. Govorov, A.Yu. Grebentsov, 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.A. Monchinsky, A. Nesterov, Yu.M. Nozhenko, A.L. Osipenkov, S. Romanov, P.A. Rukojatkin, A.A. Shurygin, I. Slepnev, V. Slepnev, A.V. Smirnov, E. Syresin, G.V. Trubnikov, A. Tuzikov, B. Vasilishin, V. Volkov
JINR, Dubna, Moscow Region, Russia
A. Belov
RAS/INR, Moscow, Russia
I.V. Gorelyshev, A.V. Philippov
JINR/VBLHEP, Dubna, Moscow region, Russia
A.O. Sidorin
St. Petersburg University, St. Petersburg, Russia

Since last RuPAC two runs of the Nuclotron operation were performed: in January - March of 2015 and June 2016. Presently we are providing the run, which has been started at the end of October and will be continued up to the end of December. The facility development is aimed to the performance increase for current physical program realization and preparation to the NICA Booster construction and Baryonic Matter at Nuclotron experiment.

Slides FRCAMH01 [20.777 MB]

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FRCAMH05

Booster Synchrotron at NICA Accelerator Complex

160

A. Tuzikov, O.I. Brovko, A.V. Butenko, A.V. Eliseev, A.A. Fateev, V. Karpinsky, H.G. Khodzhibagiyan, S.A. Kostromin, I.N. Meshkov, V.A. Mikhaylov, A.O. Sidorin, A.I. Sidorov, A.V. Smirnov, E. Syresin, G.V. Trubnikov, V. Volkov
JINR, Dubna, Moscow Region, Russia
O. Anchugov, V.A. Kiselev, D.A. Shvedov, A.N. Zhuravlev
BINP SB RAS, Novosibirsk, Russia

NICA is the new complex being constructed on the JINR aimed to provide collider experiments with ions up to aurum at energy of 4.5x4.5 GeV/u. The NICA layout includes 600 MeV/u Booster synchrotron as a part of the injection chain of the NICA Collider. The main goals of the Booster are the following: accumulation of 4E10⁹ Au³¹⁺ ions; acceleration of the heavy ions up to energy required for effective stripping; forming of the required beam emittance with electron cooling system. The layout makes it possible to place the Booster having 210.96 m circumference and four fold symmetry lattice inside the yoke of the former Synchrophasotron. The features of the Booster, its main systems, their parameters and current status are presented in this paper.

Slides FRCAMH05 [16.830 MB]

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FRCAMH07

NICA Collider Lattice Optimization

166

O.S. Kozlov, A.V. Butenko, H.G. Khodzhibagiyan, S.A. Kostromin, I.N. Meshkov, A.O. Sidorin, E. Syresin, G.V. Trubnikov
JINR, Dubna, Moscow Region, Russia

The Nuclotron-based Ion Collider fAcility (NICA) - accelerator complex is being constructed at JINR. It is aimed to the collider experiments with ions and protons and has to provide the ion-ion (Au+79) and ion-proton collision in the energy range of 1-4.5 GeV/amu and also polarized proton-proton and deuteron-deuteron collisions. Each of two collider ring has a racetrack shape with two bending arcs and two long straight sections. Beams are separated in vertical plane and come into collisions in two IPs. Dynamic aperture of the NICA collider has been studied for different parameters of the optics at IP. Effects of the fringe fields of structural elements are considered in the optimization of the collider lattice.

Slides FRCAMH07 [4.547 MB]

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THPSC005

Magnetic Measurement System For the NICA Collider Dual Dipoles

547

M.M. Shandov, V.V. Borisov, A.V. Bychkov, A.M. Donyagin, O. Golubitsky, H.G. Khodzhibagiyan, S.A. Kostromin, M.M. Omelyanenko
JINR, Dubna, Russia
A.V. Shemchuk
JINR/VBLHEP, Dubna, Moscow region, Russia

NICA collider magnetic system consists of 80 dual dipole superconducting magnets. Measurement of magnetic field parameters is assumed for each collider magnets. This paper describes magnetic measurements methods and developing of magnetic measurements system.

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THPSC010

Magnetic Measurement System For The NICA Quadrupole Magnets

559

A.V. Shemchuk
JINR/VBLHEP, Dubna, Moscow region, Russia
V.V. Borisov, A.V. Bychkov, A.M. Donyagin, O. Golubitsky, H.G. Khodzhibagiyan, S.A. Kostromin, M.M. Omelyanenko, M.M. Shandov
JINR, Dubna, Russia

NICA booster magnetic system consists of 40 dipole and 48 quadrupole superconducting magnets. Measurement of magnetic field parameters is assumed for each booster magnets. The booster quadrupole is 0.45 m-long, 47.5 mm pole radius magnet with design similar to the Nuclotron type quadrupole magnet. Focusing and defocusing quadrupole magnets are jointed in doublets. They will produce fields up to 21.5 T/m. Two magnetic measurements system with tangential and radial coils arrays were developed and produced. This paper describes the magnetic measurements methods as well as the first results of the magnetic measurements.

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THPSC018

Achievement of Necessary Vacuum Conditions in the NICA Accelerator Complex

575

A.V. Smirnov, A.M. Bazanov, A.V. Butenko, A.R. Galimov, H.G. Khodzhibagiyan, A. Nesterov, A.N. Svidetelev, A. Tikhomirov
JINR, Dubna, Moscow Region, Russia

NICA is a new accelerator collider complex under construction at the Joint Institute for Nuclear Research in Dubna. The facility is aimed at providing collider experiments with heavy ions up to Gold in a center of mass energy range from 4 to 11 GeV/u and an average luminosity up to 10²⁷ cm^-2 s^-1. The collisions of polarized deuterons are also foreseen. The facility includes two injector chains, a new superconducting booster synchrotron, the existing superconducting synchrotron Nuclotron, and a new superconducting collider consisting of two rings, each of about 500 m in circumference. Vacuum volumes of the accelerator booster and Nuclotron and the superconducting collider are divided into volumes of superconducting elements thermal enclosure and beam chambers. The beam chambers consist regular cold periods, which are at a temperature of 4.2K to 80K, and warm irregular gaps at room temperature. Operating pressure in the thermal enclosure vacuum volumes have to maintained in the range of 10^-7 to 10^-4 mbar, in the beam chamber cold and warm areas - not more than 2·10^-11 mbar. The requirements for materials, surface preparation conditions and the level of leakage in the vacuum volume are set out. The description of way to achievement and maintenance of the working vacuum in the NICA project are presented.

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THPSC042

Testing of SC-magnets of NICA Booster & Collider

S.A. Kostromin, V.V. Borisov, A.M. Donyagin, A.R. Galimov, O. Golubitsky, H.G. Khodzhibagiyan, B.Yu. Kondratiev, S.A. Korovkin, G.L. Kuznetsov, D.N. Nikiforov, A.Y. Starikov, A. Tikhomirov
JINR, Dubna, Moscow Region, Russia
T.E. Serochkina, A.V. Shemchuk
JINR/VBLHEP, Dubna, Moscow region, Russia

Serial tests of sc-magnets of NICA Booster started at the dedicated facility of LHEP JINR. Magnets' assembly and testing workflow presented. Main steps of the magnet preparation to the cryogenics tests are described. First results of serial tests are presented and discussed.

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THPSC043

Series Magnetic Measurements Of NICA Booster Dipoles

629

V.V. Borisov, A.V. Bychkov, A.M. Donyagin, O. Golubitsky, H.G. Khodzhibagiyan, S.A. Kostromin, M.M. Omelyanenko, M.M. Shandov
JINR, Dubna, Russia
A.V. Shemchuk
JINR/VBLHEP, Dubna, Moscow region, Russia

NICA booster magnetic system consists of 40 dipole and 48 quadrupole superconducting (SC) magnets. Measurement of magnetic field parameters is assumed for each booster magnets. At the moment six series dipole magnets are assembled and have passed all tests. Booster dipole magnets are 2.14 m-long, 128 /65 mm (h/v) aperture magnets with design similar to Nuclotron dipole magnet but with curved (14.1 m radius) yoke. They will produce fields up to 1.8 T. The magnetic field parameters will be measured at "warm" (300 K) and "cold" (4.5 K) conditions. The obtained results of magnetic measurements of first five magnets are summarized here.

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