# Production of charged (singly and multiply) phosphorous beams with electron cyclotron resonance ion source

Abstract : Within the framework of biological application linked to ion irradiation, the fabrication of radioactive stents by ion implantation provides a significant improvement of the recovery of arteries after a treatment of stenosed coronary arteries [P. Fehsenfeld et al., Semin Interv Cardiol. 3, 157 (1998); E. Huttel et al., Rev. Sci. Instrum. 73, 825 (2002); M.-A. Golombeck et al., Nucl. Instrum. Methods Phys. Res. B 206, 495 (2003)]. For this appliance, the suitable radioactive ion is $^{32}$P. Obviously, in order to have a minimum loss of these radioactive ions through the ionization process, it is imperative to have high ionization efficiency. In this article, the production of such singly and multiply charged phosphorous beams is investigated using two different electron cyclotron resonance ion sources: MONO1000/1001 [P. Jardin et al., Rev. Sci. Instrum. 73, 789 (2002)] and SUPERSHyPIE [J. Y. Pacquet et al., EP Patent No. 97 401294 (pending); R. Leroy et al., 14th International Workshop on ECR Ion Sources, May 1999 (unpublished)]. Spectra and above all efficiencies [J. Y. Pacquet et al., GANIL R 02 07; GANIL R 03 08] (31% of ionization efficiency for phosphorous atoms and compound with MONO1000/1001 and 43% of ionization efficiency for phosphorous atoms with SUPERSHyPIE) of these beams will be presented as well as the intensities (227 e$\mu$A for $P^+$ with MONO1000/1001 and 145 e$\mu$A for $P^7+$ with SUPERSHyPIE) of such beams.
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Conference papers

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Submitted on : Monday, April 3, 2006 - 3:46:07 PM
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### Citation

L. Maunoury, S. Kantas, R. Leroy, J.Y. Pacquet. Production of charged (singly and multiply) phosphorous beams with electron cyclotron resonance ion source. 11th International Conference on Ion Sources, Sep 2005, Caen, France. pp.03A324, ⟨10.1063/1.2166433⟩. ⟨in2p3-00025887⟩

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