1 / 31

NICA Project Report of The Group I

This report provides an overview of the NICA project, including the scheme of the accelerator facility, operation scenario, magnetic system parameters, luminosity, and main elements.

johnathand
Download Presentation

NICA Project Report of The Group I

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. NICA Project Report of The Group I S.L.Bogomolov, A.V.Butenko, A.V.Efremov, E.D.Donets, I.N.Meshkov,V.A.Mikhailov, A.O.Sidorin, A.V.Smirnov, Round Table Discussion 6-7 October JINR, Dubna

  2. Contents 1. Introduction: “the basic conditions” 2. Scheme of the NICA 3. Operation Scenario 4. Layout of the accelerator facility 5. The collider ring magnetic system parameters 6. Luminosity 7. Main elements of the Facility 8. Nuclotron: tune shift at injection, electron cooling, upgrade program 9. Estimated Cost, Manpower, Resources 10. Further development 11. Resources & schedule Conclusion NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna

  3. NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna 1. Introduction: “The Boundary Conditions” 1. Minimum of R & D 2. Application of existing experience 3. Co-operation with experienced research centers 4. Cost – as low as possible 5. Realization time – 4 – 5 years

  4. Injector for 1010 particles of 238U30+ at energy 5 MeV/u Stripper 238U92+ 2.6 GeV/u 238U92+ 500 MeV/u Nuclotron Collider Detector 238U30+ 500 MeV/u ECOOL 180 keV 238U92+ 2.6 GeV/u NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna 2. Scheme of The NICA

  5. NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna 3. Operation Scenario • The beamof 238U30+ formation in the Injector and injection into Nuclotron. • A few injection cycles and RF stacking of ions in the Nuclotron up to the level of 1011 ions; 3. Acceleration from 5 to 500 MeV/u with electron cooling on plateau at 300 MeV/u; cooling time ~ 10 s. 4. Extraction from the Nuclotron and injection into the 1st collider ring, circulation during magnetic field decrease in the Nuclotron. 5. Extraction from the collider ring, stripping on the Stripper Target into 238U92+stage, injection into the Nuclotron. 6. Acceleration up to 2.5 GeV/u. 7. Extraction, injection into the 2d collider ring.

  6. NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna 3. Operation Scenario (Contnd) 8. Repetition of the steps 16. 9. Extraction, injection into the 1st collider ring. 10. Bunching of both beams and junction. Beginning of detectioninteraction events.

  7. Circulation in the 2d ring Collision regime Collision regime E, MeV/u acceleration 1st e-cooling 2d e-cooling t, sec 1st injection 2d injection acceleration NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna 3. Operation Scenario (Contnd) Working Cycle of The Facility

  8. 3. Operation Scenario (Contnd) NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna Ion Beam Lifetime in Nuclotron At 5 MeV/u in “Helium vacuum”  = (5 ÷ 30)10-17 cm2  ~ 0.3 ÷ 2 sec at P = 10-10 Torr

  9. 4. Layout of the accelerator facility NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna

  10. 5. The collider ring magnetic system parameters NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna

  11. 5. The collider ring magnetic system parameters(Contnd) Lattice functions in the regular section NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna

  12. NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna 6. Luminosity Main Collider Parameters N1= N2 =11011 nb= 20 linteraction  lIP  lbunch= 50 cm xy= 0.7mmmrad Peak Luminosity - 51027cm-2s-1 Average Luminosity - 21027cm-2s-1 Beam-beam effect   = 0.004

  13. 6. Luminosity (Contnd) NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna Luminosity vs Crossing Angle 

  14. 6. Luminosity (Contnd) Emittance growth time related to IBS Transverse emittance:   41 sec Long. emittance:   41 sec Luminosity and beam-beam parameter evolution during experiment (t) L(t) NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna

  15. 7. Main Elements of the Facility 238U30+ 1010 ions/pulse L= 5.5 m, d = 1.2 m L = 25 m, d = 1.6 m KRION PCC Alvarez 3.78 keV/u 5 MeV/u 400 keV/u Structure of the injector NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna Injector The KRION – key issue of the project Parameters: 238U30+ 8109 ions/pulse, emittance 1 mmmrad Pulse duration 8 s at 50 Hz rep. freq. Solenoid of 6 T magn. field SC solenoid of 6 T magn. field is required!

  16. 7. Main elements of the facility (Contnd) NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna Injector The injector parameters

  17. 7. Main elements of the facility (Contnd) RF feed- throughs 4 1 2 3 5 To vacuum pump NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna Injector - Polycylindrical Cavity Accelerator (PCC) Schematics of the PCC accelerator: 1, 2, 3 - /4 cavities, 4 – buncher gap, 5 – current monitors. Parameters of the PCC Experimental results: Protons, 1.5 MeV Ibeam = 10 mA F = 148 MHz

  18. “Lasslett tune shift” at injection For 238U30+ at 5 MeV/u and y/x = 40/100 mmmrad, kbunch = 2 The tune shift Qx/Qy = 0.2/0.3 NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna 8. Nuclotron: Life Time & Tune Shift at Injection Ion Beam Lifetime in Nuclotron At 5 MeV/u in “Helium vacuum”  = (5 ÷ 30)10-17 cm2 life~ 0.3 ÷ 2 sec at P = 10-10 Torr Fast acceleration

  19. 8. Nuclotron (Contnd) NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna Electron cooling Electron energy 180 keV Electron beam current 0.5 A Electron beam diameter 1.4 cm Solenoid magnetic field 2.0 kG Cooling section length 2.0 m Electron temperature, T 200 meV T1.0 Cooling time ~ 10 s

  20. 8. Nuclotron: electron cooling (Contnd) NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna Recombination with cooling electrons Effect of ion structure LEAR experience: Phys. Lett. B361 (1995)184 Ion r[10-8 cm-3s-1] Pb52+ 11 Pb53+ 60 Pb54+ 9 U28+ 10 Au25+ 10 For the cooler parameters listed above recomb = 25 s

  21. 8. Nuclotron: electron cooling (Contnd) V.Parkhomchuk, the team leader Electron cooler for IMP, Lanzhou – designed, constructed and delivered by Budker INP to IMP, Lanzhou NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna

  22. 8. Nuclotron (Contnd) • Vacuum. 2. RF system 3. Injection and extraction 4. Diagnostics 5. Power supplies 6. Geodesy NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna Upgrade program To routine operation !

  23. 9. Estimated cost, manpower, resources (Contnd) NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna Co-operation & Manufacturing Co-operation with Budker INP: 1) magnets – mass production 48 magnets ! BINP Experience of SC dipoles for BESSY II  up to 10T SC dipoles for NICA: 4T (2.5 GeV/u)  7T (5 GeV/u) Common design and manufacturing at BINP and JINR It will speed up project realization Estimate of theSC magnets production based on the manufacturing rate of the Workshop at Budker INP shows Schedule: 1 magnet/month = 4 years ! Thus, we will need to organize the parallel process of manufacturing! and Test at Kurchatov Institute & JINR (lack of LHe!)

  24. 9. Estimated cost, manpower, resources (Contnd) NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna Co-operation & Manufacturing Co-operation with Budker INP: 2) injection/extraction systems 3) Alvarez (CERN linac) 4) First harmonics RF for Nuclotron 5) E-cooling system for Nuclotron (high precision solenoid)

  25. NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna 10. Further development: a) Booster b) Energy increase c) High energy electron cooling   collaboration with FZ Juelich & GSI c) Polarized beams

  26. NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna 11. Resources & schedule Cost

  27. NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna 11. Resources & schedule (Contnd) Manpower Number of staff members necessary for accelerator facility design & construction

  28. NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna 11. Resources & schedule (Contnd) Schedule

  29. NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna 11. Resources & schedule (Contnd) One can manage the project realization in “stage by stage” style!

  30. NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna 11. Funding & schedule (Contnd) Very first tasks • 2006 2007 2008 • KRION development   • Nuclotron upgrade   

  31. Thank you for your attention ! NICA Project, I.Meshkov for The Group I Round Table Discussion October 6-7, 2006JINR, Dubna Conclusion NICA project has a goal to provide JINR with modern and unique experimental facility. It will be a significant step in development of the “home” experimental base of JINR and will bring the Institute back into position of the leading research centers of the World in the field of high energy physics!

More Related