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Title: Fullerenes in electron cyclotron resonance ion sources

Abstract

Fullerene plasmas and beams have been produced in our electron cyclotron resonance ion sources (ECRIS) originally designed for other purposes. The ATOMKI-ECRIS is a traditional ion source with solenoid mirror coils to generate highly charged ions. The variable frequencies NIRS-KEI-1 and NIRS-KEI-2 are ECR ion sources built from permanent magnets and specialized for the production of carbon beams. The paper summarizes the experiments and results obtained by these facilities with fullerenes. Continuous effort has been made to get the highest C{sub 60} beam intensities. Surprisingly, the best result was obtained by moving the C{sub 60} oven deep inside the plasma chamber, very close to the resonance zone. Record intensity singly and doubly charged fullerene beams were obtained (600 and 1600 nA, respectively) at lower C{sub 60} material consumption. Fullerene derivatives were also produced. We mixed fullerenes with other plasmas (N, Fe) with the aim of making new materials. Nitrogen encapsulated fullerenes (mass: 720+14=734) were successfully produced. In the case of iron, two methods (ferrocene, oven) were tested. Molecules with mass of 720+56=776 were detected in the extracted beam spectra.

Authors:
; ; ; ; ;  [1];  [2];  [3];  [3]
  1. Institute of Nuclear Research (ATOMKI), H-4026 Debrecen, Bem ter 18/C (Hungary)
  2. (NIRS), 4-9-1 Anagawa, Inage, Chiba 263-8555 (Japan)
  3. (Hungary)
Publication Date:
OSTI Identifier:
20778954
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 77; Journal Issue: 3; Conference: 11. international conference on ion sources, Caen (France), 12-16 Sep 2005; Other Information: DOI: 10.1063/1.2163345; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; BEAMS; ECR ION SOURCES; FERROCENE; FULLERENES; IONS; IRON; MASS; MOLECULES; NITROGEN; OVENS; PERMANENT MAGNETS; PLASMA; RESONANCE; SOLENOIDS

Citation Formats

Biri, S., Fekete, E., Kitagawa, A., Muramatsu, M., Janossy, A., Palinkas, J., National Institute for Radiological Sciences, Department of Experimental Physics, Technical University of Budapest, H-1521 Budapest, P.O. Box 91, and Department of Experimental Physics, University of Debrecen, H-4026 Debrecen, Bem ter 18/A. Fullerenes in electron cyclotron resonance ion sources. United States: N. p., 2006. Web. doi:10.1063/1.2163345.
Biri, S., Fekete, E., Kitagawa, A., Muramatsu, M., Janossy, A., Palinkas, J., National Institute for Radiological Sciences, Department of Experimental Physics, Technical University of Budapest, H-1521 Budapest, P.O. Box 91, & Department of Experimental Physics, University of Debrecen, H-4026 Debrecen, Bem ter 18/A. Fullerenes in electron cyclotron resonance ion sources. United States. doi:10.1063/1.2163345.
Biri, S., Fekete, E., Kitagawa, A., Muramatsu, M., Janossy, A., Palinkas, J., National Institute for Radiological Sciences, Department of Experimental Physics, Technical University of Budapest, H-1521 Budapest, P.O. Box 91, and Department of Experimental Physics, University of Debrecen, H-4026 Debrecen, Bem ter 18/A. Wed . "Fullerenes in electron cyclotron resonance ion sources". United States. doi:10.1063/1.2163345.
@article{osti_20778954,
title = {Fullerenes in electron cyclotron resonance ion sources},
author = {Biri, S. and Fekete, E. and Kitagawa, A. and Muramatsu, M. and Janossy, A. and Palinkas, J. and National Institute for Radiological Sciences and Department of Experimental Physics, Technical University of Budapest, H-1521 Budapest, P.O. Box 91 and Department of Experimental Physics, University of Debrecen, H-4026 Debrecen, Bem ter 18/A},
abstractNote = {Fullerene plasmas and beams have been produced in our electron cyclotron resonance ion sources (ECRIS) originally designed for other purposes. The ATOMKI-ECRIS is a traditional ion source with solenoid mirror coils to generate highly charged ions. The variable frequencies NIRS-KEI-1 and NIRS-KEI-2 are ECR ion sources built from permanent magnets and specialized for the production of carbon beams. The paper summarizes the experiments and results obtained by these facilities with fullerenes. Continuous effort has been made to get the highest C{sub 60} beam intensities. Surprisingly, the best result was obtained by moving the C{sub 60} oven deep inside the plasma chamber, very close to the resonance zone. Record intensity singly and doubly charged fullerene beams were obtained (600 and 1600 nA, respectively) at lower C{sub 60} material consumption. Fullerene derivatives were also produced. We mixed fullerenes with other plasmas (N, Fe) with the aim of making new materials. Nitrogen encapsulated fullerenes (mass: 720+14=734) were successfully produced. In the case of iron, two methods (ferrocene, oven) were tested. Molecules with mass of 720+56=776 were detected in the extracted beam spectra.},
doi = {10.1063/1.2163345},
journal = {Review of Scientific Instruments},
number = 3,
volume = 77,
place = {United States},
year = {Wed Mar 15 00:00:00 EST 2006},
month = {Wed Mar 15 00:00:00 EST 2006}
}