8th International Topical SPARC Workshop
and SPARC Lecture Days
Moscow, September 5-10, 2011 -
Information

Title:	Dr.
Family Name:	Bogomolov
First Name:	Sergei
Gender:	male
E-Mail:	bogomolnrmail.jinr.ru
Affiliation for Badge:	JINR, Dubna
Institute:	Joint Institute for Nuclear Research
Address (Street):	Joliot-Curie, 6
Postal Code, City:	141980, Dubna
Country:	Russia
Phone:
Fax:
Arrival Date:	September 7
Departure Date:	September 10
Type of Participation:	Regular
Are you a member of the SPARC collaboration ?:	No
I register for:	Topical SPARC Workshop
	Selected
Contribution Type:	Oral
Author(s):	Bogomolov S.L., Efremov A.A., Gikal B.N., Gulbekian G.G.
Institute(s):	Joint Institute for Nuclear Research, Flerov Laboratory of Nuclear Reactions
Title:	Development of the ECR ion sources for production of intense beams of multicharged ions
Abstract:	In the Flerov Laboratory of Nuclear Reactions (JINR) the development of ion sources based on the plasma electrons heating at the frequency of electron cyclotron resonance (ECR) is motivated by the necessity of the accelerator complex (U-400, U-400M and CI-100 cyclotrons) upgrading for experiments on the synthesis of heavy and exotic nuclei using ion beams of stable and radioactive isotopes. Over past years several types of ECR ion sources of DECRIS (Dubna Electron Cyclotron Resonance Ion Source) family were developed in FLNR (JINR). In the traditional version of the source formation of the axial magnetic field is performed by the water cooled copper coils, and the radial magnetic field is created by the permanent magnet (NdFeB) hexapole. For the plasma heating a microwave frequency of 14 GHz is used. A wide range of ions of gases, such as He, N, O, Ne, Ar, Kr and Xe, and also ions of metals, such as Li, Mg and Ca were delivered by such type of the sources and accelerated in the cyclotrons. In a new generation of ECR ion sources DECRIS-SC [4] the superconducting magnet system is used for the axial magnetic field formation (maximum in distribution of 2T and 3T). The magnet system allows one to use for plasma heating the microwave frequency in the range of 14÷28 GHz. The compact version of such type ion source DECRIS-SC2 with the plasma heating frequencie of 14 GHz is now under the test. During the first tests the source shows a good enough performance for the production of multicharged ions such as O, Ar, Kr.

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