Development of the FLNR Cyclotron Complex /2009 Priority 1 Dubna,

View 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-550) Ion E, MeV/n I, ECR I, extracted 7 Li A 30 A 6*10 13 pps 11 B A 30 A 4*10 13 pps 12 C A 35 A 4*10 13 pps 14 N A 35 A 3*10 13 pps 14 N A 15 A 1.5*10 13 pps 18 O A 30 A 2.5*10 13 pps 22 Ne A 15 A 1*10 13 pps 22 Ne A 15 A 1*10 13 pps 36 S A 1.7 A 6*10 11 pps 40 Ar A 2 A 7*10 11 pps 48 Ca A 1.7 A 5*10 11 pps

Working diagram

U400M low energy beam extraction

U400M low energy program Central part of cyclotron

U400M Ion sources and axial injection

U400M Systems Modernization February-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 2007 U400M Modernization Results Ion beams with energy 5,5 MeV/n and intensity 0,2 ρμa, acceleration and extraction to the second direction. Ion beams with energy 5,5 MeV/n and intensity 0,2 ρμa, acceleration and extraction to the second direction. Increasing the light ion beams intensity for production of secondary beams (limit will be tested).

U400M hall, MASHA and new GFS lay out

U400M Plan of modernization

IonE, MeV/nI, ECRI, extracted 7 Li A30 A 6*10 13 pps 6 Li A30 A 6*10 13 pps 11 B A33 A 4*10 13 pps 12 C A35 A 4*10 13 pps 13 C A35 A 3*10 13 pps 14 N A35 A 3*10 13 pps 14 N A35 A 3*10 13 pps 18 O A35 A 2.5*10 13 pps 20 Ne A35 A 2*10 13 pps 22 Ne A35 A 2*10 13 pps 36 S A25 A 9*10 12 pps 40 Ar A35 A 1*10 13 pps 48 Ca A22 A 7*10 12 pps 48 Ca A10 A 3*10 12 pps 86 Kr A10 A 2*10 12 pps 136 Xe A0.2 A 3*10 10 pps U400 Beam parameters (DC-625)

5. Cyclotron average magnetic field level from 0,8 up to 1,8 T. U400 U400R 2. Ion energy variation on the target with factor 5. 1.Beam intensity of masses A 50 and energy 6 MeV/n up to 4 ρμa. 3. Energy spread on the target up to Beam emittance on the target – 10 π mm · mrad. 6. New equipment.

U400 U400R Working diagram

Axial Injection System SL - Solenoidal Lens AM90 – Bending Magnet S1-S4 – Focusing Solenoids U400 U400R

Magnetic Field Map (I=1200A)

U400 U400R Radial Magnetic Field Distribution for 48 Ca 6+. Ion Energy 6.2MeV/n

U400 U400R RF System

U400 U400R Vacuum System Scheme

U400 U400R Ion Beam Extraction by Stripping (probe I) Ion Beam Extraction by Stripping (probe II)

Jobs 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:

Accelerator Running time in hours 2008 (required) U400 U400M Total Running time of the FLNR U400 and U400M cyclotrons in