Introduction to the RAON project in Korea

Byungsik Hong(Korea University)

Brainstorming discussion: Interests and priorities for collaboration on accelerator R&D

2017 Joint Workshop of the France-Korea (FKPPL) and France-Japan (TYL/FJPPL) Particle Physics Laboratories

IPHC, Strasbourg, France, May 10-12, 2017

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Rare Isotope Science Project (RISP)□ Goal: To build the heavy ion accelerator complex

RAON for rare isotope science research□ Budget: Total ~U$ 1.43 B Facilities: ~U$ 460 M Buildings and utilities: ~U$ 970 M

□ Period: December 2011 – December 2021□ Brief history 2009.01: International Science Business Belt Plan 2011.02: Conceptual Design Report 2011.12: RISP launched 2012.06: Baseline Design Summary & Technical Design Report 2014.12: Civil engineering & construction project of RISP

launched 2015.05: 2nd amendment of the basis plan

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Location of RAON Complex

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Current RISP Office

~11 km

Site Plan

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Basic design was finished in December 2015.A construction company was selected in September 2016.

Bird’s eye view

Site Preparation

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□ The construction and civil engineering for RAON (Rare isotope Accelerator complex for ON-line experiments) has begun.

□ The ground breaking for accelerators and experimental buildings was done on Feb. 13th this year. A full scale ground breaking ceremony is scheduled in either July or August, 2017.

Area: 952,066 m2

Layout of RAON

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RISP 4.3 High-precision Mass Measurement Facility

RISP 4.6Neutron Science Facility

RISP 4.7 Bio-medical Research Facility

RISP 4.5µ-SRRISP 4.1

Recoil Spectrometer (KOBRA) RISP 4.2

Large Acceptance Spectrometer

RISP 4.4 Collinear Laser Spectroscopy

RISP 3.2 ISOL Facility

Low Energy Expt. Bldg.

High Energy Expt. Bldg. (A)

RISP 3.3IF Facility

High Energy Expt. Bldg. (B)

Driver Linac Post Acc. Cyclotron

Particle H+ O+8 Xe+54 U+79 RI beam proton

Energy (MeV/u) 600 320 251 200 18.5 70

Current (pμA) 660 78 11 8.3 - 1000

Power (kW) > 400 400 400 400 - 70

Expected RIBs at RAON

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90N

umbe

r of P

roto

n (Z

)

Number of Neutron (N)

Stable lineN

umbe

r of P

roto

n (Z

)

Number of Neutron (N)

Z=N

1.0E+001.0E+011.0E+021.0E+031.0E+041.0E+051.0E+061.0E+071.0E+081.0E+091.0E+101.0E+11

IFS

1.0E+001.0E+011.0E+021.0E+031.0E+041.0E+051.0E+061.0E+071.0E+081.0E+091.0E+101.0E+11

KOBRA

KOBRA: 40Ar(30 MeV/u,12 kW) + Be

Num

ber o

f Pro

ton

(Z)

Number of Neutron (N)

IFS: 238U(200 Mev/u, 400 kW) + CN

umbe

r of P

roto

n (Z

)

Number of Neutron (N)

1.0E+001.0E+011.0E+021.0E+031.0E+041.0E+051.0E+061.0E+071.0E+081.0E+091.0E+101.0E+11

ISOL

ISOL: p(70 MeV, 70 kW)+UCx

<1 pps

ISOL+IF: 140Xe(222 MeV/u, 1E+07 pps)+ C

Num

ber o

f Pro

ton

(Z)

Number of Neutron (N)

1E-101E-091E-081E-071E-061E-051E-041E-031E-021E-011E+00

ISOL+IF

KOBRA

IF

ISOL

ISOL+IF

RAON aims to provide an access to the unexplored regions of nuclear chart.

𝑍𝑍 = 𝑁𝑁

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SCL1(QWR)

SCL1(HWR)

SCL2(SSR2)

Bending Section

Injector

SCL2(SSR1)

Cyclotron IF System

Accelerator Systems

Prototypes of Accelerator Components

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28 GHz ECR Ion Source

QWR SC Cavity & its Cryomodule

HWR SC Cavity & its Cryomodule SSR SC Cavity and its Cryomodule

HTS Q-magnet

RFQ

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Low Energy Expt. Bldg.

Ultra-low Expt. Bldg.

High Energy Expt. Bldg.

(B)

CLSHPMMS

Neutron Facility

KOBRA

Bio-medical facility

µSR

LAMPS

Experimental Systems

High Energy Expt. Bldg.

(A)

Prototypes of Experimental Systems

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Gamma array

Beam-tracking detector (PPAC)

LASER for collinear laser spectroscopy

ISOL target

ISOL beam diagnostics

β-detection system for µSR

Time Projection Chamber

Major Milestones

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Site Building

System

Civil Const-ruction

2014 2015 2016 2017 2018 2019 2020 2021

Prototype development

Accelerator and Experimental System Installation and Commissioning

SCL Demo Beam(‘17.12)

Utility Supply(‘18.9)

DAY-1 Expt.(‘20.7)

ISOL RI Beam(‘20.12)

IF RI Beam(‘21.12)

Basic Design

Detail Design

Construction / Facility Inspection/ Safety ManagementRadiation Safety Approved by KINS

ECR BeamISOL SI Beam

(‘15.12)

Tende-ring

Process

□ Milestones in 2017• Cryomodule test for QWR and HWR Mass production

• Cavity test for SSR Cryomodule test in early 2018

• Beam extraction from SCL demo (1 QWR)

Summary

□ Rare Isotope Science Project (RISP) at IBS, Korea is moving forward.

□ RAON will be the first accelerator combining ISOL and IF for more exotic radioactive ion beams.

□ The construction and civil engineering for RAON has begun: The ground breaking for accelerators and experimental buildings was done on Feb. 13th, 2017.

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