JINR PAC, Dubna, G. Gulbekian Status of the DRIBs III Project cyclotron DC280 new experimental hall (SHE factory) cyclotron U400R reconstruction of the U400R experimental hall

Future accelerators for SHE programs CenterAccelerator type Intensity 48 Са, p  A Realization MSUSC Linac102018÷2020 SPIRAL IISC Linac102013÷2016 GSISC Linac102013÷2015 RIKENRing Cyclotron102011÷2013 DubnaCompact Cyclotron102014

In order to improve efficiency of the experiments for the next 7 years it is necessary to obtain the accelerated ion beams with following parameters. Energy4÷8 MeV/n Masses10÷238 Intensity (up to A=50)>10 pµA Beam emittance less 30 π mm·mrad Efficiency of beam transfer >50% NEW FLNR ACCELERATOR – DC280 CYCLOTRON

4 DC280 ParameterGoals 1.High injecting beam energy (up to 100 kV) Shift of space charge limits for factor 30 2.High gap in the centerSpace for long spiral inflector 3.Low magnetic fieldLarge starting radius. High turns separation. Low deflector voltage 4.High acceleration rateHigh turns separation. 5.Flat-top systemHigh capture. Single orbit extraction. Beam quality. DC280. Parameters and Goals

DC280 Overall (ion source target) beam current transferring efficiency

DC280 Planning Lay-out

Working Diagram of the DC280 Cyclotron

Ion source DECRIS GHz - 18 GHz DECRIS-SC GHz Injecting beam potentialUp to 100 kV A/Z range4÷7 Energy4÷8 MeV/n Magnetic field level0.6÷1.35 T K factor280 Gap between plugs400 mm Valley/hill gap500/208 mm/mm Magnet weight1000 t Magnet power300 kW Dee voltage2x130 kV RF power consumption2x30 kW Flat-top dee voltage2x14 kV DC280 Main Parameters

Flerovlab Building 131 New Experimental Building with DC280 accelerator complex

Basement Rooms

First Floor

Second Floor

Third floor

SHE factory Building computer model

DC280 Cyclotron intensity of some typical ion beams 20Ne1·10 14 pps 48Ca6·10 13 pps 50Ti3·10 13 pps 70Zn2,5·10 13 pps 86Kr3·10 13 pps 100Mo2·10 12 pps 124Sn2·10 12 pps 136Xe2·10 13 pps 208Pb1·10 12 pps 238U1·10 11 pps

FLNR Schedule of the SHE factory creation

Modernization of the U400 accelerator improvement of the quality and intensity of stable and radioactive beams (48Ca – 2.5÷3 p  A ), providing of a smooth variation of energy of ions in the range 0.8 – 27 MeV/A, decrease in the consumption of rare isotopes, decrease in power consumption

Working Diagram of the U400R Cyclotron with working points U400 Cyclotron

U Ca beam intensity 1985 ÷ 2011 Beam Intensity, pµA Year U400R

Parameters of U400 and U400R typical ion U400 IonIon energy [MeV/u] Output intensity 4 He He  10 7 pps 8 He O ; 7.95 pμA 18 O ; 10.5; pμA 40 Ar ; 5.1 *1.7 pμA 48 Ca ; 5.3 *1.2 pμA 48 Ca ; 11; 17.7 *1 pμA 50 Ti ; 5.1 * 0.4 p  A 58 Fe ; 5.4 * 0.7 p  A 84 Kr ; 4.4 *0.3 pμA 136 Xe ; 4.6; 6.9 *0.08 pμA U400R (expected) IonIon energy [MeV/u] Output intensity 4 He  2723 p  A ** 6 He  pps 8 He  pps 16 O  p  A ** 16 O  p  A ** 40 Ar 4+ 1  p  A 48 Ca  82.5 p  A 48 Ca  p  A 50 Ti  211 p  A 58 Fe  7.51 p  A 84 Kr  p  A 132 Xe  p  A 238 U  80.1 p  A

U400 accelerator complex. Planning Lay-out

U400R. Median plane level. Second floor.

U400R. First floor

U400R. Basement level

U400R Building. Cross-section

SHE factory U400R + SHE factory U400R Building 131

U400 U400R Schedule Hall designBuilding U400 U400R assembling U400 beam on U400R beam on

2011Project Areas for set-ups400 м м 2 Areas for electronics300 м м 2 Areas for technical equipment 670 м м 2 Number of radiation isolated halls 16 U400 U400R hall reconstruction results

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