Progress of RAON Heavy Ion Accelerator Project in Korea

Transcription

1 Progress of RAON Heavy Ion Accelerator Project in Korea Sunchan Jeong Rare Isotope Science Project (RISP) 중이온가속기 사업단 Institute for Basic Science (IBS) May 13, 2016 IPAC2016

2 Contents

3 Rare Isotope Science Project (RISP) Goal: To build a heavy ion accelerator complex RAON, for rare isotope science research in Korea. Budget: US$ 1.44 B (1 B$~1T Won) - accelerators and experimental apparatus : 0.46 B$ - civil engineering & conventional facilities : 0.98 B$ (incl. construction site purchase) Period: ~ ( years)

4 History of RISP

5 RAON Concept Injector NDPS SCL1 ~ f/s SCL2 BIS & musr KOBRA SCL3 HPMMS & CLS Cyclotron ISOL IF (high E) LAMPS

6 RAON Concept Injector NDPS SCL1 ~ f/s SCL2 BIS & musr KOBRA SCL3 HPMMS & CLS Cyclotron ISOL IF (high E) LAMPS

7 RAON Concept Injector NDPS SCL1 ~ f/s SCL2 BIS & musr KOBRA SCL3 HPMMS & CLS Cyclotron ISOL IF (high E) LAMPS

8 RAON Concept Injector NDPS SCL1 ~ f/s SCL2 BIS & musr KOBRA SCL3 HPMMS & CLS Cyclotron ISOL IF (high h E) LAMPS

9 Lineup of RIB production & separation ISOLIF : ISOLSCL3SCL2IF : ISOLSCL3KOBRA IFRe-Acc (future upgrade) : IFstopped beamscl SCL1 SCL3 SCL2 KOBRA (low E IF) ISOL IF (high E) Driver Post Acc SCL3 or SCL1 Cyclotron SCL32 or SCL12 SCL3 or SCL32 Production mechanism Direct reactions - (p,d), ( 3 He,n) etc, MNT p induced U fission PF, U fission Available RIB energy < a tens of MeV/u > a few of kev/u < a hundreds of MeV/u

10 Expected RIBs at RAON 90 IFS: 238 U(200 Mev/u, 400 kw) + C 80 KOBRA: 40 Ar(30 MeV/u,12 kw) + Be Stable line Number of Proton (Z) ISOL: p(70 MeV, 70 kw)+uc x ISOL+IF: 140 Xe(222 MeV/u, 1E+07 pps)+ C Z=N <1 pps Number of Neutron (N) RAON will provide access to unexplored regions of the nuclear chart! IFS KOBRA ISOL ISOL+IF 1.0E E E+11 1E E E E+10 1E E E E+09 1E E E E+08 1E E E E+07 1E E E E+06 1E E E E E E E+04 1E E E E+03 1E E E E+02 1E E E E+01 1E E E E+00 1E-10

11 RAON Site : %XVDQ

12 RAON Site : ~11 km Current RISP Office %XVDQ

13 RAON Site : ~11 km Current RISP Office %XVDQ %DVLF GHVLJQ ZDV ILQLVKHG 'HF $ FRQVWUXFWLRQ FRPSDQ\ ZLOO EH VHOHFWHG LQ $XJXVW L

14 RISP Milestone Schedule ECR SI Beam RFQ Beam SCL Demo Beam SCL SI Beam IF RI Beam ISOL SI Beam Cyclotron ISOL RI Beam DAY-1 Experiment Start Utility Supply Begin Construction Completion

15 Project Status Status of RAON

16 Layout of RAON Injector NDPS SCL1 SCL2 BIS & musr SCL3 KOBRA HPMMS & CLS ISOL IF (high E) 1: Cyclotron, ISOL, SCL3, KOBRA, MMS, CLS 2: SCL2, IF, LAMPS 3: SCL1, NDPS, MSF, BIS LAMPS

17 Accelerator systems <7 10keV/u) IF SYSTEM Injector ISOL SYSTEM SCL1(QWR) Cyclotron ~ SCL1(HWR) SCL2 (SSR) Charge Stripper ~~

18 Experimental Systems CLS Bio-medical facility High Energy Exp. II PSR HPMMS Very-low Energy Exp. High Energy Exp. I Neutron Facility ZDS KOBRA Low Energy Exp. LAMPS

19 Accelerator and Experiment systems Injector System SC LINAC System +:5 4:5 QWR GHz ECR-IS IF System RFQ Low-energy Exp. System ISOL System Intermediate-energy Exp. System

20 Project Status

21 SRF Test Infrastructure Remodeling design: ~ Remodeling construction: 15.11~ He Cryoplant (300W) comissioning is under way. (2016,5-) From June, 2016, the operation (VT, HT) will start. Cleanroom area Current status of construction Horizontal test area (~ Vertical test area (A) Cleanroom area, (B) (B) Horizontal test area, (C) Vertical test area, (D) Cryoplant area (300W + 900W to be upgrade), (E) Demonstration area

22 Procurement of Equipment for SRFTF BCP (under fabrication) Vacuum Furnace (completed) Field profiler (completed) Cryostat (completed) HPR (completed) 1200mm 900mm 600mm Liquefier (completed) DB box (completed) DI water system (completed) ECT (completed)

23 Demonstration System Goal A/q = 7.2, beam energy = 530 kev/u - ECRIS beam energy : 10 kev/u - RFQ beam energy : 500 kev/u - QWR beam enegy : 530 kev/u Beam spec. Oxygen 0.01 ma (A/q ~ 3) Oxygen 0.01 ma (A/q ~ 3) Metal 0.01 ma (A/q ~ 7.2) Detailed action item SCL Demo : Hardware installation ECRIS : beam extraction (Oxygen ~1 ma) SCL Demo : Beam acceleration (Oxygen) ECRIS : metal ion extraction (Bismuth 0.1 ma) SCL Demo : metal ion acceleration

24 Injector Specification ECR-IS - Output norm(rms) emittance 0.12 π mm-mrad - Beam current 400euA for 238 U U Output beam energy 10 kev/u - RF frequency 28 GHz - Magnets Fully superconducting NbTi LEBT - Pre-bunchers Multi-harmonic buncher, Velocity equalizer - Two Bends 90 deg. RFQ - RF frequency MHz - Output beam energy 500keV/u - 4 Vane types MEBT - 3 Re-bunchers RF freq MHz

25 28 GHz ECR Ion Source B inj = 3.5 T, B ext = 2.2 T, B r = 2 B ecr, B min = 0.7 T Superconducting sextupole and solenoid prototypes were tested and achieved > 30% margin. 120 Superconducting magnet assembly (sextupole + 4 O O4+ solenoids) was completed. 80 Beam test is in progress(o5+, 100uA beam is generated). erated) Beam current [ua] O2+ O3+ O6+ 20 O1+ O7+ 0 O8+ & H Q/A SC Magnet training Six 4K cryocoolers, One single stage cryocooler Inside Shielding Block

26 Radio Frequency Quadrupole PARAMETER Beam Properties: Frequency Particle Input Energy Input Current Input Emittance Output Energy Output Emittance Transmission Total Power Duty Factor VALUE MHz H+1 to U kev/u 0.4 ma cm. mrad MeV/u cm. mrad ~26 kev/u-degree ~98 % 94 kw 100% RFQ Prototype 15kW RF amp RFQ Fabrication is under way: fabrication, low-power tuning complete in Frequent RISP staff visits & risk mitigation (contacted with domestic vendor) Section #1 Section #3 Section #5 Section #7 Section #2 Section #4 Section #6 Section #8 Section #9

27 Vertical Test of QWR Cavity Target (TRIUMF SRF Facility)

28 QWR static load: 3.9 W (expectation: 5 W) HWR static load: 11.4 W (expectation: 12 W) Level (cm) Level of 2 K reservoir (1) Thermal load of 2 K part (1) Level of 2 K reservoir (2) Thermal load of 2 K part (2) Q (W) Time (min)

29 Alignment MAT + open target Open targets Vertical displacement Position of open target Alignment test of a cryomodule Good repeatability: less than ±0.04 mm

30 Summary (1)

31 Summary (2)

32 .