Studies of extraction and transport system for highly charged ion beam of 18 GHz superconducting electron cyclotron resonance ion source at Research Center for Nuclear Physics

Hatanaka, K.; Fukuda, M.; Ueda, H.; Yasuda, Y.; Morinobu, S.; Tamii, A.; Kamakura, K.

doi:10.1063/1.4849675

Title: Studies of extraction and transport system for highly charged ion beam of 18 GHz superconducting electron cyclotron resonance ion source at Research Center for Nuclear Physics

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Abstract

An 18 GHz superconducting electron cyclotron resonance ion source is installed to increase beam currents and to extend the variety of ions especially for highly charged heavy ions which can be accelerated by cyclotrons of Research Center for Nuclear Physics (RCNP), Osaka University. The beam production developments of several ions from B to Xe have been already done [T. Yorita, K. Hatanaka, M. Fukuda, M. Kibayashi, S. Morinobu, H.Okamura, and A. Tamii, Rev. Sci. Instrum. 79, 02A311 (2008) and T. Yorita, K. Hatanaka, M. Fukuda, M. Kibayashi, S. Morinobu, H.Okamura, and A. Tamii, Rev. Sci. Instrum. 81, 02A332 (2010)] and the further studies for those beam extraction and its transport have been done in order to increase the beam current more. The plasma electrode, extraction electrode, and einzel lens are modified. Especially extraction electrode can be applied minus voltage for the beam extraction and it works well to improve the extracted beam current. The extraction voltage dependences of transmission and emittance also have been studied for beam current improvement which is injected into azimuthally varying field cyclotron at RCNP.

Authors:

Hatanaka, K.; Fukuda, M.; Ueda, H.; Yasuda, Y.; Morinobu, S.; Tamii, A.; Kamakura, K. ^[1]

Research Center for Nuclear Physics (RCNP), Osaka University, Osaka 567-0047 (Japan)

Publication Date:: Sat Feb 15 00:00:00 EST 2014

OSTI Identifier:: 22253569

Resource Type:: Journal Article

Journal Name:: Review of Scientific Instruments

Additional Journal Information:: Journal Volume: 85; Journal Issue: 2; Conference: ICIS 2011: 14. international conference on ion sources, Giardini-Naxos, Sicily (Italy), 12-16 Sep 2011; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0034-6748

Country of Publication:: United States

Language:: English

Subject:: 43 PARTICLE ACCELERATORS; BEAM CURRENTS; BEAM EXTRACTION; CYCLOTRONS; ECR ION SOURCES; ELECTRIC POTENTIAL; ELECTRODES; EXTRACTION; GHZ RANGE 01-100; HEAVY IONS; ION BEAMS

Citation Formats


                    Yorita, T., E-mail: yorita@rcnp.osaka-u.ac.jp, Hatanaka, K., Fukuda, M., Ueda, H., Yasuda, Y., Morinobu, S., Tamii, A., and Kamakura, K. Studies of extraction and transport system for highly charged ion beam of 18 GHz superconducting electron cyclotron resonance ion source at Research Center for Nuclear Physics.  United States: N. p., 2014. 
        Web.  doi:10.1063/1.4849675.

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                    Yorita, T., E-mail: yorita@rcnp.osaka-u.ac.jp, Hatanaka, K., Fukuda, M., Ueda, H., Yasuda, Y., Morinobu, S., Tamii, A., & Kamakura, K. Studies of extraction and transport system for highly charged ion beam of 18 GHz superconducting electron cyclotron resonance ion source at Research Center for Nuclear Physics.  United States.  https://doi.org/10.1063/1.4849675

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                    Yorita, T., E-mail: yorita@rcnp.osaka-u.ac.jp, Hatanaka, K., Fukuda, M., Ueda, H., Yasuda, Y., Morinobu, S., Tamii, A., and Kamakura, K. 2014.  
        "Studies of extraction and transport system for highly charged ion beam of 18 GHz superconducting electron cyclotron resonance ion source at Research Center for Nuclear Physics".  United States.  https://doi.org/10.1063/1.4849675.

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@article{osti_22253569,

  title        = {Studies of extraction and transport system for highly charged ion beam of 18 GHz superconducting electron cyclotron resonance ion source at Research Center for Nuclear Physics},

  author       = {Yorita, T., E-mail: yorita@rcnp.osaka-u.ac.jp and Hatanaka, K. and Fukuda, M. and Ueda, H. and Yasuda, Y. and Morinobu, S. and Tamii, A. and Kamakura, K.},

  abstractNote = {An 18 GHz superconducting electron cyclotron resonance ion source is installed to increase beam currents and to extend the variety of ions especially for highly charged heavy ions which can be accelerated by cyclotrons of Research Center for Nuclear Physics (RCNP), Osaka University. The beam production developments of several ions from B to Xe have been already done [T. Yorita, K. Hatanaka, M. Fukuda, M. Kibayashi, S. Morinobu, H.Okamura, and A. Tamii, Rev. Sci. Instrum. 79, 02A311 (2008) and T. Yorita, K. Hatanaka, M. Fukuda, M. Kibayashi, S. Morinobu, H.Okamura, and A. Tamii, Rev. Sci. Instrum. 81, 02A332 (2010)] and the further studies for those beam extraction and its transport have been done in order to increase the beam current more. The plasma electrode, extraction electrode, and einzel lens are modified. Especially extraction electrode can be applied minus voltage for the beam extraction and it works well to improve the extracted beam current. The extraction voltage dependences of transmission and emittance also have been studied for beam current improvement which is injected into azimuthally varying field cyclotron at RCNP.},

  doi          = {10.1063/1.4849675},

  url          = {https://www.osti.gov/biblio/22253569},
  journal      = {Review of Scientific Instruments},

  issn         = {0034-6748},

  number       = 2,

  volume       = 85,

  place        = {United States},

  year         = {Sat Feb 15 00:00:00 EST 2014},

  month        = {Sat Feb 15 00:00:00 EST 2014}

}

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