The modifications of the JYFL 6.4 GHz ECR ion source

• Autorzy: Koivisto H. , Liukkonen E. , Moisio M. , Nieminen V. , Suominen P.
• Konferencja: Proceedings of the XXXIII European Cyclotron Progress Meeting, 17-21 September 2002, Warszawa-Kraków, Poland
• Języki publikacji: EN

Abstrakty

EN

A new JYFL 14 GHz ECRIS was completed in spring 2000 for the nuclear physics program at the Department of Physics, University of Jyväskylä (JYFL). The old JYFL 6.4 GHz ECRIS (built in 1990-1991) is now also available for the material physics experiments and for the research and development work of the ECR ion sources. During the last year remarkable modifications to the structure of the source have been undertaken. In the first phase, which was completed in fall 2001, the axial magnetic field was optimized using the old power supplies and the coils. The radial magnetic field was improved in spring 2002 by installing an iron cylinder around the hexapole permanent magnets. According to the measurements the improvement of about 25% to the radial magnetic field was achieved. The research work to improve the ion beam quality has been started.

Słowa kluczowe

EN

ECR ion source; ion beams

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2003
• Tom: Vol. 48,suppl.2
• Strony: 81--84
• Opis fizyczny: Bibliogr. 10 poz., rys.

Twórcy

autor

Koivisto H.

• Accelerator Laboratory, Department of Physics, University of Jyväskylä, P. O. Box 35, FIN-40351 Jyväskylä, Finland, Tel.: [phone], Fax: [phone]

autor

Liukkonen E.

• Accelerator Laboratory, Department of Physics, University of Jyväskylä, P. O. Box 35, FIN-40351 Jyväskylä, Finland, Tel.: [phone], Fax: [phone]

autor

Moisio M.

• Accelerator Laboratory, Department of Physics, University of Jyväskylä, P. O. Box 35, FIN-40351 Jyväskylä, Finland, Tel.: [phone], Fax: [phone]

autor

Nieminen V.

• Accelerator Laboratory, Department of Physics, University of Jyväskylä, P. O. Box 35, FIN-40351 Jyväskylä, Finland, Tel.: [phone], Fax: [phone]

autor

Suominen P.

• Accelerator Laboratory, Department of Physics, University of Jyväskylä, P. O. Box 35, FIN-40351 Jyväskylä, Finland, Tel.: [phone], Fax: [phone]

Bibliografia

• 1. Antaya TA, Xie ZQ (1986) Initial results with a vertical, full iron yoke, 2 × 6.4 GHz ECR source for the NSCL heavy ion cyclotrons. In: Proc of the 7th Int Workshop on ECRIS, 22−23 May 1986, Jülich, Germany, pp 72−102
• 2. Ärje J, Nieminen V, Choiński J, Antaya TA (1990) Status of JYFL-ECRIS at University of Jyväskylä. In: Proc of the 10th Int Workshop on ECRIS, 1−2 November 1990, Knoxville, USA, pp 343−351
• 3. Gammino S, Ciavola G, Harkewicz R, Harrison K, Srivastava A, Briand P (1996) Effects of frequency and magnetic field scaling on the superconducting electron cyclotron resonance ion source at MSU-NSCL. Rev Sci Instrum 67;12:4109−4113
• 4. Koivisto H, Ärje J, Nurmia M (1994) Metal ion beams from an ECR ion source using volatile compounds. Nucl Instrum Meth Phys Res B 94:291−296
• 5. Koivisto H, Ärje J, Seppälä, Nurmia M (2002) Production of titanium ion beams in an ECR ion source. Nucl Instrum Meth Phys Res B 187:111−116
• 6. Koivisto H, Cole D, Fredell A et al. (2000) ARTEMIS – the new ECR ion source for the coupled cyclotron facility at NSCL/MSU. In: Proc of the Workshop on the Production of Intense Beams of Highly Charged Ions, 24−27 September, Catania, Italy. Italian Physical Society 72:135−139
• 7. Koivisto H, Heikkinen P, Hänninen V et al. (2001) The first results with the new JYFL 14 GHz ECR ion source. Nucl Instrum Meth Phys Res B 174:379−384
• 8. Koivisto H, Heikkinen P, Liukkonen E, Ärje J, Vondrasek R (2002) Low cost upgrade of 6.4 GHz ECRIS and recent results with 14 GHz ECRIS at JYFL. Rev Sci Instrum 73;2:534−536
• 9. Wutte D, Leitner MA, Lyneis CM (2001) Emittance measurements for high charge state ion beams extracted from the AECR-U ion source. Phys Scripta T 92:247−249
• 10. Xie ZQ, Lyneis CM (1997) Performance of the upgraded LBNL AECR ion source. In: Proc of the 13th Int Workshop on ECRIS, 26−28 February 1997, College Station, TX, USA, pp 16−21