Role of a biased electrode in the production of highly charged ions using the DECRIS 14-3 ion source

• Autorzy: Leporis M. , Bogomolov S. , Efremov A. , Loginov V. , Mironov V.
• Konferencja: Proceedings of the XXXIII European Cyclotron Progress Meeting, 17-21 September 2002, Warszawa-Kraków, Poland
• Języki publikacji: EN

Abstrakty

EN

ECR ion sources are used for the production of highly charged ions in various accelerator facilities. In most of them biased electrodes are normally used to increase the ion yield. Physical processes in the plasma of an ion source are quite complicated and the role of a biased electrode is not clear. To investigate the effect of a biased electrode on the intensity of extracted highly charged ions, an axially movable electrode was placed into the plasma chamber of the DECRIS 14-3 ion source. It was found that the intensity of Ar ions depends on the position of the biased electrode and negative bias voltage. The optimal position of the biased electrode was found near the maximum of the magnetic field. Experiments with a pulsed biased electrode were also carried out. The influence of the negative pulse on the ion yield depends on the ion charge state.

Słowa kluczowe

EN

ECR ion source; plasma; biased electrode

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2003
• Tom: Vol. 48,suppl.2
• Strony: 89--92
• Opis fizyczny: Bibliogr. 3 poz., rys.

Twórcy

autor

Leporis M.

• Flerov Laboratory of Nuclear Reaction, Joint Institute for Nuclear Research, Dubna, Moscow region, 141980, Russia, Tel.: [phone], Fax: [phone]

autor

Bogomolov S.

• Flerov Laboratory of Nuclear Reaction, Joint Institute for Nuclear Research, Dubna, Moscow region, 141980, Russia

autor

Efremov A.

• Flerov Laboratory of Nuclear Reaction, Joint Institute for Nuclear Research, Dubna, Moscow region, 141980, Russia

autor

Loginov V.

• Flerov Laboratory of Nuclear Reaction, Joint Institute for Nuclear Research, Dubna, Moscow region, 141980, Russia

autor

Mironov V.

• Laboratory of Particle Physics, Joint Institute for Nuclear Research, Dubna, Moscow region, 141980, Russia

Bibliografia

• 1. Efremov A, Bogomolov SL, Lebedev AN, Loginov VN, Yazvitsky NYu (1999) Ion Source DECRIS 14-3. In: Proc of the 14th ECRIS Workshop, 3−6 May 1999, CERN, Geneva, Switzerland, pp 31−34
• 2. Nakagawa T, Kidera M, Biri S et al. (1999) Recent developments of RIKEN ECRIS’s (18 GHz ECRIS and liquid He free SC-ECRIS). In: Proc of the 14th ECRIS Workshop, 3−6 May 1999, CERN, Geneva, Switzerland, pp 1−4
• 3. Runkel S, Stiebing KE, Hohn O, Mironov V, Shirkov G, Schempp A, Schmidt-Böcking H (1999) Time resolved experiments at the Frankfurt 14 GHz ECR ion source. In: Proc of the 14th ECRIS Workshop, 3−6 May 1999, CERN, Geneva, Switzerland, pp 183−186