The rare isotope science project a k a koria iupap 2012 japan
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The Rare Isotope Science Project a.k.a. KoRIA IUPAP 2012 (Japan). 08. 17. 2012. Dong-O Jeon The Institute for Basic Science. Brief History of IBS. International Science Business Belt plan (2009.1) The Institute for Basic Science is the core facility of the ISBB plan

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The Rare Isotope Science Project a.k.a. KoRIA IUPAP 2012 (Japan)

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The rare isotope science project a k a koria iupap 2012 japan

The Rare Isotope Science Projecta.k.a. KoRIAIUPAP 2012 (Japan)

08. 17. 2012

Dong-O Jeon

The Institute for Basic Science


Brief history of ibs

BriefHistory of IBS

  • International Science Business Belt plan (2009.1)

  • The Institute for Basic Science is the core facility of the ISBB plan

  • Under the IBS, a heavy ion accelerator facility is built – The Rare Isotope Science Project

  • Preliminary Design Study (2009.3 - 2010.2)

  • Conceptual Design study (2010.3 - 2011.2)

  • International Advisory Committee (2011.7)

  • Institute for Basic Science(IBS) established (2011.11)

  • Rare Isotope Science Project(RISP) launched (2011.12)

  • Technical Advisory Committee (2012.5)

  • Baseline Design Summary (2012.6)

  • International Advisory Committee (2012.7)


Organization of the institute for basic science

Organization of the Institute for Basic Science

Board of Directors

Scientific Advisory Board

Auditor

President

  • Office of

  • Policy Planning

Accelerator Institute

(Affiliated Institution)

Secretariats

Rare Isotope Science Project

Office of

Research Services

  • IBS consists of 50 research centers, supporting organizations, and affiliated research institutes

  • Each Research Center : ~50 staff, average annual budget ~ 9 M USD

  • The number of staff: 3,000 (2017, including visiting scientists and students)

  • Annual Budget: USD 610 million (2017, including operational cost for the Accelerator Institute)

Research Center

(Headquarters)

Research Center

(Campus)

Research Center

(Extramural)

  • Office of Administrative Services

4


The rare isotope science project a k a koria iupap 2012 japan

Location

Daejeon


The rare isotope science project a k a koria iupap 2012 japan

Bird Eye View of IBS


Bird s eye view of accelerator facility

Bird’s Eye View of Accelerator Facility


Bird s eye view of accelerator facility1

Bird’s Eye View of Accelerator Facility


Making rare isotope beams

Making Rare Isotope Beams

ISOL(Isotope Separator On-Line)

p  thick target (eg. Uranium Carbide)  target spallation or fission (low energy)

Reacceleration

RI Ions

RI Beam

Cyclotron

Proton 70 MeV, 70 kW

Driver LINAC

Heavy ion

e.g. U : 200MeV/u, 200 kW

Stopping

Stopped Beam

Experiment

(Traps)

RI ion beam

Fast Beam

Experiment

IF(In-Flight Fragmentation)

Stable Heavy ion beam  thin target  projectile fragmentation (high energy)


Accelerator system

Accelerator System

LEBT

ECR-IS ( 10keV/u, 12 pμA)

  • Main Driver Superconducting Linac with 400 kW beam power

  • Cyclotron 70 MeV 1 mA p beam as ISOL driver

  • Post Accelerator to accelerate RI beams

RFQ (300keV/u, 9.5 pμA)

MEBT

SCL1 (18.5 MeV/u, 9.5 pμA)

Driver Linac

SCL2 (200 MeV/u, 8.3 pμA for U+79)

(600MeV, 660 μA for p)

Chg.

Stripper

ISOL

Target

μSR, Medical

HRMS

CB

RFQ

MEBT

IF Target

Cyclotron

(p, 70 MeV, 1mA)

IF system

SCL1 (Post Acc.)

RF Cooler

IF Separator

Post Accelerator

Atomic Trap

ECR-IS

ISOL system

Gas Catcher


Accelerator system1

Accelerator System

Beam Parameters of Accelerator System


Driver linac

Driver Linac

LEBT

ECR-IS ( 10keV/u, 12 pμA)

Injector

  • Main Driver Linac with 400 kW beam power

  • Accelerates from proton (600 MeV) to uranium (200 MeV/u)

  • Designed for high intensity beams

  • Send beam to the IF target or ISOL target

RFQ (300keV/u, 9.5 pμA)

MEBT

SCL1 (18.5 MeV/u, 9.5 pμA)

SCL1

Driver Linac

SCL2 (200 MeV/u, 8.3 pμA for U+79)

(600MeV, 660 μA for p)

Chg.

Stripper

SCL2

ISOL

Target

μSR, Medical

HRMS

CB

RFQ

MEBT

IF Target

Cyclotron

(p, 70 MeV, 1mA)

IF system

SCL1 (Post Acc.)

RF Cooler

IF Separator

Post Accelerator

Atomic Trap

ECR-IS

ISOL system

Gas Catcher


Ecr ion source

ECR Ion Source

  • Consists of 28 GHz RF system and superconducting magnets for high current ion beam generation

  • X-ray shielding required

  • High temp oven under design

  • Generating 12 pmA (U beam)

Superconducting

Magnet


The rare isotope science project a k a koria iupap 2012 japan

RFQ

  • RFQ is

  • To accelerate ion beams from 10 keV/u to 300 keV/u

  • 4 m long, 81.25 MHz


The rare isotope science project a k a koria iupap 2012 japan

RFQ

Transmission : 80.5%

  • ex=0.12 mm-mrad, ey=0.18 mm-mrad, ez=8.2 MeV-deg @ exit of RFQ

  • With LEBT bunchers (TRACK code)

  • Accelerate ion beams 10 keV/u to 300 keV/u

  • Assessing available options.


Driver scl

Driver SCL

  • SCL is designed

  • To accommodate the needs of various user groups

  • To accelerate high intensity beams

  • Nb Cavities operating at 2K

  • Focusing by normal conducting quad doublets

  • Optimized geometric beta of SC cavities (0.047, 0.12, 0.30, 0.53)

  • Employs larger aperture to reduce beam loss (4cm and 5 cm aperture)

  • Cryogenic load estimated 1.9 kW [Driver Linac 2K] + 0.35 kW [Post Acc]

  • Cavity geometry optimized for Epeak/Eacc , Bpeak/Eacc, R/Q, QRs


Cavity g eometric beta optimization

Cavity Geometric Beta Optimization

SSR2

SSR1

For U beam

HWR

QWR

RISP: 0.047, 0.120, 0.30, 0.53

16


Cavity geometry optimized

Cavity Geometry Optimized


Scl layout

SCL Layout

  • Linac base frequency = 81.25 MHz

  • Design to accelerate high intensity ion beams

  • Flexile operation to meet the needs of various user groups

QWR

SC cavity

NC quadrupole

beam box

HWR

Previous Driver SCL Design

with SC solenoids

Driver SCL

with NC doublets

18


Scl layout1

SCL Layout

NC quadrupole lattice option has the following merits:

  • Accurate alignment < 150 mm of NC quadrupoles is straightforward.

  • Beam quality control isstraightforward and design is more adequate for high power beam operation.

  • Advantages in beam diagnostics and collimation through beam boxes.

  • Thelinac cost seems to be in error range compared with the SC solenoid option. ( removal of costly SC solenoids)

  • Preliminary cryo-load comparison suggests that overall cryo-load difference is small compared with the dynamic load.


Scl layout2

SCL Layout

  • Present SCL layout provides good beam diagnostics configuration for machine tuning.

  • Necessary beam diagnostics can be installed at beam boxes.

  • Also provides good beam loss collimation configuration, improving beam quality for users, reducing beam loss.

Beam

Beam loss

beam box

cryomodule

quadrupole

collimator


Scl layout3

SCL Layout

[1 QWR + 1 QD] x 24

SCL1

[3 HWR + 1 QD] x 14

[6 HWR + 1 QD] x 16

beam box example

(courtesy of SPIRAL2)

[4 SSR + 1 QD] x 22

SCL2

[8 SSR + 1 QD] x 17


Scl machine tolerance driver scl post scl

SCL machine tolerance (Driver SCL, Post SCL)

  • Preliminary study is done.

  • Further studies on machine tolerances will be done.

Machine imperfections for actual accelerator


Scl machine tolerance

SCL machine tolerance

Max. envelope

Centroid

Emittance

76% increase

10% increase

baseline

350% increase

130% increase

solenoid

  • The shade region represents the bounds of envelope, centroid and emittance due to misalignment and field errors.

  • The aperture of quadrupole and solenoid is 4 cm.


Cyclotron

Cyclotron

LEBT

ECR-IS ( 10keV/u, 12 pμA)

  • Cyclotron – 70 MeV, 1 mA, proton beam

  • Supports CW and pulsed beam

  • Pulsed beam by fast chopping system

  • Driver for the ISOL target

  • Will be procured through bidding

RFQ (300keV/u, 9.5 pμA)

MEBT

SCL1 (18.5 MeV/u, 9.5 pμA)

Driver Linac

SCL2 (200 MeV/u, 8.3 pμA for U+79)

(600MeV, 660 μA for p)

Chg.

Stripper

ISOL

Target

μSR, Medical

Cyclotron

HRMS

CB

RFQ

MEBT

IF Target

Cyclotron

(p, 70 MeV, 1mA)

IF system

SCL1 (Post Acc.)

RF Cooler

IF Separator

Post Accelerator

Atomic Trap

ECR-IS

ISOL system

Gas Catcher


Post accelerator system

Post-Accelerator System

LEBT

  • Accelerates RI beams from the ISOL system up to 18.5 MeV/u and RI beam can be injected to SCL2 to higher energy

  • Consists of charge breeder, RFQ, MEBT, superconducting linac etc.

  • High beam quality required

  • Adopts the same SCL layout

ECR-IS ( 10keV/u, 12 pμA)

RFQ (300keV/u, 9.5 pμA)

MEBT

SCL1 (18.5 MeV/u, 9.5 pμA)

Driver Linac

CS

SCL2 (200 MeV/u, 8.3 pμA for U+79)

(600MeV, 660 μA for p)

ISOL

Target

μSR, Medical

HRMS

CB

RFQ

MEBT

IF Target

Cyclotron

(p, 70 MeV, 1mA)

IF system

SCL1 (Post Acc.)

RF Cooler

IF Separator

Post Accelerator

Atomic Trap

ECR-IS

ISOL system

Gas Catcher


Design of if separator

Design of IF Separator

Pre-separator: S-shape

Main separator: C-shape

Max. magnetic rigidity= 8 Tm

W. Wan, J. Kim, Cyclotron Conf. 2010


Beam optics of pre separator

Beam Optics of Pre-Separator

Shielding

Beam dump

Wedge

Horizontal

Vertical

Calculated with TURTLE

= 4  mm mrad

p/p =  5 %

p/p= 1.5%

Aberrations up to 7thorder


Schedule

Schedule

  • SAR (Safety Analysis Report) Review is a critical path to accelerator system installation and commissioning.

  • Rather optimistic schedule for SAR Review process is assumed.

  • Accelerator tunnel construction begins Feb/01/2016.

  • Installation of accelerators will begin Jul/01/2016.


Schedule1

Schedule


Schedule2

Schedule

  • Very tight installation and commissioning schedule to meet the 2017 completion


Organization chart

Organization Chart

Rare Isotope Science Project

Kim, Sun Kee

Recruiting on-going

Experimental Sys. Division

Kim, Yong Kyun

Accelerator Sys. Division

Jeon, Dong-O

IF ∙ RF Team

Kim, Jong Won (leader)

Han, Jae Eun

Kim, Mi Jung

Kim, Do Gyun

Kim, Myeong Jin

Song, JeongSeog

Kim, Seong Jun

Injector ∙ Beam Phy Team

Hong, In Seok (leader)

Kim, ByoungChul

Choi, Bong Hyuk

Seo, Chang Seok

Kim, Hye Jin

Jang, Si Won

Hwang, JiGwang

Bang, Jung Bae

SCL Team

Kim, HyungJin (leader)

Jung, Hoe Chun

Lee, Jung Han

Choi, Chul Jin

Joo, Jong Dae


Man power plan

Man-power Plan

Recruiting Plan for young scientists and engineers

Project-wise Man-power Plan


Summary

Summary

  • Previous conceptual design was reviewed / assessed and design changes are made(reflected in Baseline Design Summary).

  • The RISP is phasing into technical design stage.

  • Schedule and Cost are being evaluated.

  • Having developed man-power plan to support the schedule.

  • We are getting ready for the construction of the SRF Test Facility.

  • International Collaboration is an important part for the success of the project.


Thanks for your attention

Thanks for Your Attention!


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