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R. Keller and N. Angert, “Development of High Current Heavy Ion Sources at GSI”, in Proc. 1979 Linear Accelerator Conf. (LINAC'79), Montauk, NY, USA, Sep. 1979, paper S8-6, pp. 436-439. |
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R. Keller, “High-Current Ion Sources”, in Proc. 1984 Linear Accelerator Conf. (LINAC'84), Seeheim, Germany, May 1984, paper MOA0004, pp. 19-23. |
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P. Spädtke and R. Keller, “Pre-Acceleration of High-Current Ion Beams”, in Proc. 1984 Linear Accelerator Conf. (LINAC'84), Seeheim, Germany, May 1984, paper TUP0013, pp. 121-123. |
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J. Klabunde, A. Schönlein, R. Keller, T. Kroll, P. Spädtke, and J. Struckmeier, “High Current Beam Transport Experiments in a Magnetic Quadrupole Channel at GSI”, in Proc. 1984 Linear Accelerator Conf. (LINAC'84), Seeheim, Germany, May 1984, paper WED0009, pp. 315-317. |
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R. Keller, “Innovations in Ion Sources and Injectors”, in Proc. 1986 Linear Accelerator Conf. (LINAC'86), Stanford, CA, USA, Jun. 1986, paper WE2-2, pp. 232-236. |
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J. Klabunde et al., “The Project of a High-Current Injector at the UNILAC”, in Proc. 1986 Linear Accelerator Conf. (LINAC'86), Stanford, CA, USA, Jun. 1986, paper WE3-20, pp. 299-301. |
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R. W. Müller et al., “Heavy-Ion RFQ Accelerator MAXILAC Achieves 45 keV / AMU”, in Proc. 1986 Linear Accelerator Conf. (LINAC'86), Stanford, CA, USA, Jun. 1986, paper WE3-31, pp. 328-329. |
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R. Keller, “An Overview of Linac Ion Sources”, in Proc. 24th Linear Accelerator Conf. (LINAC'08), Victoria, Canada, Sep.-Oct. 2008, paper TH104, pp. 740-744. |
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K. F. Johnson et al., “H- Ion Source Development for High Performance”, in Proc. 25th Linear Accelerator Conf. (LINAC'10), Tsukuba, Japan, Sep. 2010, paper THP114, pp. 1004-1006. |
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H. Safa et al., “Specific Resistance Measurement of a Single Grain Boundary in Pure Niobium”, in Proc. 9th Int. Conf. RF Superconductivity (SRF'99), Santa Fe, NM, USA, Nov. 1999, paper TUP029, pp. 267-269. |
