Progress towards realization of the NuclotronNICA project A

Progress towards realization of the Nuclotron-NICA project A. Sidorin, on behalf of the team PP PAC, JINR, Dubna, 31 January 2018

Contents • • • Preparation for heavy ion run Preparation for BM@N Plans for the Nuclotron Run Preparation for the Booster construction Development of the collider systems 2

Preparation for heavy ion run Tuning of KRION at test bench E. D. Donets, E. E. Donets From April to October Optimization of the string formation for generation of Ar 16+ and Kr 26+ ions From October – start of tuning at LU-20 Buncher tuning and installation (April 2017) ITEP, Chernogolovka, A. Butenko, A. Govorov From Jun to September LU-20 run with the laser source – tuning of the injection chain 3

Preparation for heavy ion run Tuning of the injector complex Usage of the buncher permitted to increase the Ar beam intensity at the entrance of the Nuclotron by about 5 times 4

Preparation for heavy ion run Tuning of the injector complex Results from 20. 12. 2017 Beam intensity at the entrance of the Nuclotron Ar 14+ Ar 15+ Ne Ar 16+ C 4+ C 5+ C 6+ Kr 26+ 1. 5 E 8 4. 4 E 8 3. 3 E 8 2. 1 E 8 4. 0 E 8 1. 1 E 9 2. 5 E 8 Nparticle 1. 0 E 7 3. 0 E 7 2. 0 E 7 5. 3 E 7 8. 0 E 7 1. 7 E 8 1. 0 E 7 Results from 20. 01. 2018 4. 0 E 7 Ar 15+ 3. 7 E 7 Ar 16+ 5

Preparation for BM@N V. Karpinsky BM@N Development of power supply system Bld. 205 6

Preparation for BM@N Development of power supply system V. Karpinsky BM@N Required: to upgrade 2 switchgear 6 k. V network, to create a distribution subsystems 3 -phase network 0, 69 k. V to create 35 high-current precision power supplies to create a subsystem for back-up power loads on the grid constant current, to create a subsystem load switching in power circuits, to create a subsystem for control and monitoring all. Bld. 205 7

Preparation for BM@N Development of power supply system Supply unit 300 A x 8 V BM@N LEM 5 k. A, bld 205 V. Karpinsky Remote control system ИП 600 -180 ЛМ Инвертор Operated during 2 runs Active filter АФВТ 600 -25 Switchgear ПС 13, bld. 1 A 8 ЛМ Инвертор

Preparation for BM@N Development of power supply system V. Karpinsky PS unit ИП 2500 -280 for BM@N large aperture magnet (relative stability 10 -4 ) Will be operated in the coming run 9

Nearest plans 2017: Run #55: November – December KRION source: C, Ar 16+ and Kr 26+ Due to importance of the physical program we plan to prolong the Nuclotron operation 2018: 17 0 2 un n b u D February-March , R N I J , Laser source: d, Li, C C A P PP J 6 2 a, After completion of the run: start of the Booster assembly 10

Plans for the Nuclotron run Due to 2017: technical problem the Nuclotron cooling during the Run#55 was postponed Run #55: November – December (H. Khodzhibagiyan KRION source: talk) C, Ar 16+ and Kr 26+ the Run was prolonged at injection facility Due to importance of the physical program 2018: we plan to prolong the Nuclotron operation Run#55: cooling of the Nuclotron 5 February 2018: – 23 (? )February-March 16+ and Kr 26+ KRIONLaser source: C, Ar source: d, Li, C (SRC, BM@N, Radiobiology) After completion of the run: start of the Booster assembly First technological run of the Booster – end 2018 11

Preparation for the Booster construction • Main power supply source – June 2018 (ЛМ Инвертор) • Electron cooling system commissioning • Status of manufacturing the magnets • Beam injection into Booster • Beam transfer from Booster to Nuclotron 12

Electron cooling system commissioning Milestones 2017 Arrival at Dubna April Installation on regular place May V. Parkhomchuk, B. Reva (BINP) A. Smirnov, LEPTA team Magnetic element assembling Magnetic field homogeneity test Vacuum chamber assembling High voltage system assembling High voltage testing Physical run June August September October December 13

Electron cooling system commissioning V. Parkhomchuk, B. Reva (BINP) A. Smirnov, LEPTA team Vacuum pressure, Pa 3× 10 -9 14

Results of the cooler commissioning Achieved parameters Electron energy, ke. V Electron current, m. A Cathode radius, cm Magnetic field, k. Gs Filed homogeneity Vacuum pressure, Pa Total power, k. W Value 2 170 3 1 2× 10 -5 3× 10 -9 120 15

Status of Manufacturing the Magnets H. Khodzhibagiyan A. Kostromin By now, 80% of the magnetic-cryostat system of Booster has been realized. Completely manufactured: all cryostats all 40 dipole magnets all 48 quadrupole lenses all 32 yokes for correctors Successfully passed cryogenic and magnetic tests and certified for installation in the Booster 33 dipole magnets (82%)

Status of quadrupole tests «Warm» T= 293 K «Cold» T= 4. 5 K A. Kostromin, V. Borisov 23 January 2018 13 dublets Quality of manufacturing and assembly - Displacement of the magnetic axis - Influence of the iron saturation 17

Preliminary results of «warm» measurements Tolerance A. Kostromin, V. Borisov 10 -4 18

Beam injection into Booster A. Tuzikov, A. Butenko Main elements of beam injection systems 19

Beam injection into Booster A. Tuzikov, A. Butenko • Magnets and the debuncher are ready for installation on the HILAC-Booster channel. • Manufacturing of the electrostatic septum and the Main elements of beam “warm” injection kicker IP 2 injection is nearsystems to completion. • A prototype of a “cold” injection kicker is manufactured and tested. Manufacturing of the injection kickers IP 1 and IP 3 will be started on April -May 2018. 20

Beam transfer from Booster to Nuclotron A. Tuzikov, BINP Booster Nuclotron Main elements of beam transfer systems 21

Beam transfer from Booster to Nuclotron A. Tuzikov, BINP Booster • BINP is ready to start manufacturing of the extraction kicker and septa. • Magnets of the Booster-Nuclotron channel are in development. Main elements of beam transfer systems • A Lambertson magnet for Nuclotron injection system is being designed. • A prototype of a injection kicker is manufactured and tested. Now design of a kicker for Nuclotron injection system is being developed. • Commissioning – December 2019 Nuclotron 22

Development of the collider systems • Start of serial production of the collider magnets, cryostats and beam pipes – end 2017 • Completion of cryostat bellows – end 2017 • RF system for basic configuration is under construction at BINP – 2020 • RF system for project configuration is under development at BINP – 2021 • Electron cooling system is under construction at BINP – 2021 • BINP group participates in development of polarized mode • Beam transfer from Nuclotron to collider 23

Beam transfer from Nuclotron to Collider A. Tuzikov, Sigma. Phi Total length ~ 350 m 24

Beam transfer from Nuclotron to Collider A. Tuzikov, Sigma. Phi 25

Beam transfer from Nuclotron to Collider A. Tuzikov, Sigma. Phi • Magnets of the Nuclotron-Collider channel are in development by Sigma. Phi. • A prototype of a pulse septum is manufactured and tested. Now design of a septum for Collider injection system is being developed. • Commissioning – 2020 26

Thank you for attention 27