Development of the FLNR Cyclotron Complex

04-5-1004-96/2009 Priority 1

Dubna, 21.02.08

View from Above on Accelerator PlacementView from Above on Accelerator Placement

FLEROVLAB ACCELERATORS

Program of modernization of the FLNR cyclotron complex

• 1. U400M – low energy beams.

• 2. U400 – U400R.

• 3. MT25

U400M Beam parameters (DC-U400M Beam parameters (DC-550)550)

U400M Beam parameters (DC-U400M Beam parameters (DC-550)550)

IonIon E, MeV/nE, MeV/n I, ECRI, ECR I, extracted I, extracted I, I, extractedextracted

77LiLi2+2+ 3535 100100AA 3030AA 6*106*101313 pps pps

1111BB3+3+ 3232 9090AA 3030AA 4*104*101313 pps pps1212CC4+4+ 4747 100100AA 3355AA 4*104*101313 pps pps

1414NN4+4+ 3535 100100AA 3355AA 3*103*101313 pps pps

1414NN5+5+ 5454 5050AA 1515AA 1.5*101.5*101313 pps pps

1818OO5+5+ 3333 100100AA 3030AA 2.5*102.5*101313 pps pps

2222NeNe6+6+ 3232 5050AA 1515AA 1*101*101313 pps pps2222NeNe7+7+ 4343 5050AA 1515AA 1*101*101313 pps pps3636SS10+10+ 3333 1010AA 1.71.7AA 6*106*101111 pps pps

4040ArAr12+12+ 4040 1212AA 22AA 7*107*101111 pps pps

4848CaCa10+10+ 2020 1010AA 1.71.7AA 5*105*101111 pps pps

1,30 1,35 1,40 1,45 1,50 1,55 1,60 1,65 1,70 1,75 1,80 1,85 1,90 1,95

3

4

5

6

7

8

910

20

30

40

50

60

70

80

90100 4He2+

6Li2+ , 12C4+ , 15N5+

20Ne5+ , 40Ar10+

12C2+

84Kr9+

0.006 T

9

8

MC400 Cyclotron

2.3 MHz

3.833 MHz

5.75 MHz

12.0 MHz

4.8 MHz

8.0 MHz

7

6

5

10

4

3

2

Mass to ChargeRatio

Extraction Radius 1.8 m, Generator Frequency 11.5 - 24.0 MHz

Ions

Ene

rgy

[MeV

/nuc

l]

Cyclotron Center Magnetic Field [T]

3

4

5

6

7

8

9

10

0.18 T0.16 T

2.875 MHz

6.0 MHz

4

2

5

3

0.01 T

0.008 T

0.015 T

0.009 T

0.02 T

0.03 T

0.04 T

0.007 T

0.05 T

0.06 T

0.08 T

0.10 T

0.12 T0.14 T

Harmonic Mode 2nd harmonic 3rd harmonic 4th harmonic 5th harmonic

Ions

Fre

quen

cy [

MH

z]

Working diagram

-3,0 -2,5 -2,0 -1,5 -1,0 -0,5 0,0 0,5 1,0 1,5-3,5

-3,0

-2,5

-2,0

-1,5

-1,0

-0,5

0,0

0,5

1,0

1,5

2,0

Z2/Z

1=2.0-4.0

=43.2o

R=300 cm

X [ m ]

= 90o

= 0o

U - 400M : Extraction by stripping ( A/Z = 9.5 )

Y [

m ]

U400M low energy beam extraction

U400M low energy program

Central part of cyclotron

U400M

Ion sources and axial injection

U400M Systems ModernizationFebruary-September 2007

• new axial injection line;• deep modernization of “warm” ECR ion source

(DECRIS-2);• new U400M central region ion optics for “low”

(4÷15) MeV/n beam acceleration;• new target–catcher system for 6He production with

local radiation shielding;• second system for “low” energy beam extraction;• new RF control system;• partial modernization of water cooling system;• new main magnet coil power supply source;• second superconducting 18-GHz ECR ion source

DECRIS-SC2 (under testing).

October-December 2007October-December 2007U400M Modernization ResultsU400M Modernization Results

• Ion beams with energy 5,5 MeV/n and Ion beams with energy 5,5 MeV/n and intensity 0,2 ρμa, acceleration and intensity 0,2 ρμa, acceleration and extraction to the second direction.extraction to the second direction.

• Increasing the light ion beams intensity Increasing the light ion beams intensity for production of secondary beams (limit for production of secondary beams (limit will be tested).will be tested).

410

4320

3000

4000

3000

1000

155

1500

6987

U400M hall, MASHA and new GFS lay out

U400MPlan of modernization

2007 2008 № Jobs 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12

1. Program of low energy beams acceleration and extraction (3÷ 9 Mev/n)

2. Creation and testing of low energy beam channels

3. Installation of MASHA and GFS separators in U400M halls

4. Complex testing

Ion E, MeV/n I, ECR I, extracted I, extracted

7Li1+ 16.6 100A 30A 6*1013 pps6Li1+ 12.6 100A 30A 6*1013 pps11B2+ 17.8 90A 33A 4*1013 pps12C2+ 16.6 100A 35A 4*1013 pps13C2+ 14.4 100A 35A 3*1013 pps14N2+ 9.4 100A 35A 3*1013 pps14N3+ 20.3 100A 35A 3*1013 pps18O3+ 19.3 100A 35A 2.5*1013 pps

20Ne4+ 20.9 100A 35A 2*1013 pps22Ne4+ 17.8 100A 35A 2*1013 pps

36S6+ 15 60A 25A 9*1012 pps40Ar8+ 19.9 100A 35A 1*1013 pps48Ca5+ 5.3 60A 22A 7*1012 pps48Ca9+ 19 30A 10A 3*1012 pps86Kr9+ 5.1 60A 10A 2*1012 pps

136Xe14+ 4.4 5A 0.2A 3*1010 pps

U400 Beam parameters (DC-625)U400 Beam parameters (DC-625)

5. Cyclotron average magnetic field level 5. Cyclotron average magnetic field level from 0,8 up to 1,8 T.from 0,8 up to 1,8 T.

U400 U400R U400 U400R

2. Ion energy variation on the target with factor 5.2. Ion energy variation on the target with factor 5.

1.1. Beam intensity of masses A ≈ 50 and Beam intensity of masses A ≈ 50 and energy ≈ 6 MeV/n energy ≈ 6 MeV/n up to 4 ρμaup to 4 ρμa..

3. Energy spread on the target up to 103. Energy spread on the target up to 10-3-3..

4. Beam emittance on the target – 10 π mm · mrad.4. Beam emittance on the target – 10 π mm · mrad.

6. New equipment.6. New equipment.

U400 U400 U400R U400R U400 U400 U400R U400R

Working diagram

Axial Injection SystemAxial Injection System

SL - Solenoidal LensSL - Solenoidal Lens

AM90 – Bending Magnet AM90 – Bending Magnet

S1-S4 – Focusing SolenoidsS1-S4 – Focusing Solenoids

U400 U400 U400R U400R U400 U400 U400R U400R

U400 U400 U400R U400R U400 U400 U400R U400R

Magnetic Field Map (I=1200A)Magnetic Field Map (I=1200A)

1.58

1.585

1.59

1.595

1.6

1.605

1.61

1.615

1.62

0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8

R [m]

B [

T ]

B(R) - WP

U400 U400 U400R U400R U400 U400 U400R U400R

Radial Magnetic Field Distribution for Radial Magnetic Field Distribution for 4848CaCa6+6+. Ion Energy 6.2MeV/n. Ion Energy 6.2MeV/n

U400 U400 U400R U400R U400 U400 U400R U400R

RF SystemRF System

U400 U400 U400R U400R U400 U400 U400R U400R

Vacuum System SchemeVacuum System Scheme

4.

3.

2.

1.

4321432143214321

2010200920082007Jobs№

Drawing

Creation and equipment completion

Assembling

Equipment and beam testing

Plan of modernization U400 → U400R

Microtron

• RF generator

• Vacuum system

• Control system

• Beam line equipment

• Power supply

2008 – partial modernization of old subsystems:

AcceleratorRunning time in hours

2008

(required)

U400

U400M

Total

2003 2004 2005 2006 2007

6500 6500 5500 56005500

3300 2500 3500 17003500

9800 9000 9000 73009000

6000

2500

8500

Running time of the FLNR U400 and U400M cyclotrons in 2003-2007