Status on recent accelerator projects at Korea ( )

1 22 2008

Light source project ( ) - PLS-II ( , 1000, Jan 2009 - Dec. 2011) : PLS upgrade Proton linac project ( ) - 100 MeV (, ~1250 (2500) , 2002-2012)

Heavy-Ion accelerator project - Cancer therapy ( , ~1400(1900), + , 2010-2015, @) - heavy-ion accelerator (75, 2008-2011, KBSI )

business ( Jan. 2009, : ) : 3 5487 (, ) - Rare Isotope Accelerator : (2010-2011), (2012-2015), 4600

- ABSI ( , 2012 ) : 50 groups

- 10 GeV SASE-FEL ( / in 2009, PAL) - 10 MeV superconducting electron linac (@ KAERI )

1. PLS II projectExtension of linac energyModification of ring lattice

1. PLS II project ( )

1. PLS II project( linac) Beam energy 2.5 GeV Length 160 m RF frequency 2.856 GHz No. of columns 44 Beam pulse length 1 nsEnergy spread 5x 10-3Repetition rate 10 HzBunch length 6 mm

1. PLS II project(linac upgrade)Add Modulator / Klystron

- Add 4 MK units @ linac - Energy increase : from 2.5 GeV to 3 GeV

Improvement of stability for Top-up injection

- improvements on diagnostics, gun, timing, modulator, optics, control, utilities.

1. PLS II project ( ring) Lattice type Triple Bend ArcBeam energy 2.5 GeV Circumference 280 m RF frequency 500.08 MHz Harmonic number 468 Beam emittance 18.9 nmEnergy spread 8.6 x 10-4Damping time 8 ms / 4 ms

1. PLS II project (ring lattice modification) TBA @2.5 GeVChromatic DBA @3 GeVCombined BendIDIDID

1. PLS II project (ring parameters )Energy : 3.0 GeV (2.5 GeV)Emittance : 5 nm (18.9nm)Beam current : 400 mA (190mA)Circumference : 281.82 m (280.56m)Number of bunch : 470 (468)Bunch length : 6 mm (7.6mm)Energy spread : 0.1% (0.086%)RF voltage : 3.6 MV (1.6 MV)RF frequency : 500 MHz (500 MHz)

12 x 6.8 m long straight sections 10 are for IDs and 1 for injection 1 (or 2) for 500 MHz RF [Normal Cavity or Super-Cavity : ]

12 x 3.1 m short straight sections 10 are for IDs ( 20 bending magnet beam lines ) 1. PLS II project (ring straight sections)

2. Proton Linac Project

2. Proton Linac

2. Proton Linac (RCS,)

2. Proton Linac

2. Proton Linac 20 MeV

2. Proton Linac

3. Heavy ion therapy accelerator(@ Pusan)

KIRAMS ( , Seoul)

3. Heavy ion therapy

3. Heavy ion therapy120 MeV

3. Heavy ion therapy

@ Pusan 400MeV C123. Heavy ion therapy not still fixed layoutbasic concept

(Li2~3+ production >1pmA)Acceleration ~2.5MeV/uNeutron production(2.5MeV 3x1012/sec)H(7Li, n)7Be Inverse kinematics4. Heavy-Ion and Fast Neutron Beam Facility KBSI (Pusan)(2008-2011) Li 3+ 5mA / Ar 8+ 2mA Kr 13+ 0.6 mA / Xe 20+ 0.3 mAECR

business - President visited KEK, CERN and GSI during electron period in 2007.

- He promised a new science city that includes an institute and an accelerator facility.

- Last week, government officially decided a new science city project that includes establishment of ABSI and construction of a heavy-ion accelerator [actually, Rare-Isotope Accelerator].

5. Rare Isotope Accelerator (@ business ) 2010-2011 : 2012-2015 : Not still detailed layout

Rough SPECSuperconducting LINACU : 200 MeV/n, L~ 120mSynchrotron (?)C : 400 MeV/n, C ~150mBeam current H : 4 mA (CW)U : 2 A (CW)ParticleH ~ U InsertionECRIS, RFQBudget 4,600

5. Rare Isotope Accelerator (@ business ) ion

6. Superconducting e- linac at KAERI - 10 MeV beam - 10 MeV ERL (not still funded)

7. 10 GeV SASE-FEL plan

M1 L1 XBC1 M2 L2 BC2M3 L3 M4 BTL Injector Undu. M : Matching section X : X-band Linac ( 31.6 MV/m) L : S-band Linac (27 MV/m)q=1 nCsz=2.9 psex=0.93 mmey=0.93 mmsd=0.2 %E=0.135 GeVq=1 nCsz=0.94 psex=1.05 mmey=1.11 mmsd=0.93 %E=0.42 GeVq=1 nCsz=0.078 psex=1.10 mmey=1.14 mmsd=0.53 %E=2.84 GeVq=1 nCsz=0.078 psex=1.10 mmey=1.06 mmsd=0.037 %E=10.0 GeV frf =21o frf =20o frf=22.2o 7. 10 GeV SASE-FEL layout

7. Bunch compressor IICompression factor: 12Bending angle : 0.0396 rad R56 : -49.5 mm

7. Beam performance

Several accelerator projects are on-going: mainly in stages of design and initial construction, but man-power is not enough.

-CERN MOU (done) : LHC : 30 (2009) -KEK MOU (how about?) : [ILC(ATF..), Super-B...] /

Extension of linacCombined Bend ECR