Status and operation of the Linac4 ion source prototypes

J. Lettry; D. Aguglia; P. Andersson; S. Bertolo; A. Butterworth; Y. Coutron; A. Dallocchio; E. Chaudet; J. Gil-Flores; R. Guida; J. Hansen; Akiyoshi Hatayama; I. Koszar; E. Mahner; C. Mastrostefano; S. Mathot; S. Mattei; Midttun; P. Moyret; D. Nisbet; K. Nishida; M. O'Neil; M. Ohta; M. Paoluzzi; C. Pasquino; H. Pereira; J. Rochez; J. Sanchez Alvarez; J. Sanchez Arias; R. Scrivens; T. Shibata; D. Steyaert; N. Thaus; T. Yamamoto

doi:10.1063/1.4848975

Status and operation of the Linac4 ion source prototypes

J. Lettry, D. Aguglia, P. Andersson, S. Bertolo, A. Butterworth, Y. Coutron, A. Dallocchio, E. Chaudet, J. Gil-Flores, R. Guida, J. Hansen, Akiyoshi Hatayama, I. Koszar, E. Mahner, C. Mastrostefano, S. Mathot, S. Mattei, Midttun, P. Moyret, D. NisbetK. Nishida, M. O'Neil, M. Ohta, M. Paoluzzi, C. Pasquino, H. Pereira, J. Rochez, J. Sanchez Alvarez, J. Sanchez Arias, R. Scrivens, T. Shibata, D. Steyaert, N. Thaus, T. Yamamoto

Department of Chemistry

Research output: Contribution to journal › Review article › peer-review

30 Citations (Scopus)

Abstract

CERN's Linac4 45 kV H^- ion sources prototypes are installed at a dedicated ion source test stand and in the Linac4 tunnel. The operation of the pulsed hydrogen injection, RF sustained plasma, and pulsed high voltages are described. The first experimental results of two prototypes relying on 2 MHz RF-plasma heating are presented. The plasma is ignited via capacitive coupling, and sustained by inductive coupling. The light emitted from the plasma is collected by viewports pointing to the plasma chamber wall in the middle of the RF solenoid and to the plasma chamber axis. Preliminary measurements of optical emission spectroscopy and photometry of the plasma have been performed. The design of a cesiated ion source is presented. The volume source has produced a 45 keV H^- beam of 16-22 mA which has successfully been used for the commissioning of the Low Energy Beam Transport (LEBT), Radio Frequency Quadrupole (RFQ) accelerator, and chopper of Linac4.

Original language	English
Article number	02B122
Journal	Review of Scientific Instruments
Volume	85
Issue number	2
DOIs	https://doi.org/10.1063/1.4848975
Publication status	Published - 2014 Feb

ASJC Scopus subject areas

Instrumentation

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Lettry, J., Aguglia, D., Andersson, P., Bertolo, S., Butterworth, A., Coutron, Y., Dallocchio, A., Chaudet, E., Gil-Flores, J., Guida, R., Hansen, J., Hatayama, A., Koszar, I., Mahner, E., Mastrostefano, C., Mathot, S., Mattei, S., Midttun, Moyret, P., ... Yamamoto, T. (2014). Status and operation of the Linac4 ion source prototypes. Review of Scientific Instruments, 85(2), [02B122]. https://doi.org/10.1063/1.4848975

Lettry, J, Aguglia, D, Andersson, P, Bertolo, S, Butterworth, A, Coutron, Y, Dallocchio, A, Chaudet, E, Gil-Flores, J, Guida, R, Hansen, J, Hatayama, A, Koszar, I, Mahner, E, Mastrostefano, C, Mathot, S, Mattei, S, Midttun, Moyret, P, Nisbet, D, Nishida, K, O'Neil, M, Ohta, M, Paoluzzi, M, Pasquino, C, Pereira, H, Rochez, J, Sanchez Alvarez, J, Sanchez Arias, J, Scrivens, R, Shibata, T, Steyaert, D, Thaus, N & Yamamoto, T 2014, 'Status and operation of the Linac4 ion source prototypes', Review of Scientific Instruments, vol. 85, no. 2, 02B122. https://doi.org/10.1063/1.4848975

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abstract = "CERN's Linac4 45 kV H- ion sources prototypes are installed at a dedicated ion source test stand and in the Linac4 tunnel. The operation of the pulsed hydrogen injection, RF sustained plasma, and pulsed high voltages are described. The first experimental results of two prototypes relying on 2 MHz RF-plasma heating are presented. The plasma is ignited via capacitive coupling, and sustained by inductive coupling. The light emitted from the plasma is collected by viewports pointing to the plasma chamber wall in the middle of the RF solenoid and to the plasma chamber axis. Preliminary measurements of optical emission spectroscopy and photometry of the plasma have been performed. The design of a cesiated ion source is presented. The volume source has produced a 45 keV H- beam of 16-22 mA which has successfully been used for the commissioning of the Low Energy Beam Transport (LEBT), Radio Frequency Quadrupole (RFQ) accelerator, and chopper of Linac4.",

author = "J. Lettry and D. Aguglia and P. Andersson and S. Bertolo and A. Butterworth and Y. Coutron and A. Dallocchio and E. Chaudet and J. Gil-Flores and R. Guida and J. Hansen and Akiyoshi Hatayama and I. Koszar and E. Mahner and C. Mastrostefano and S. Mathot and S. Mattei and Midttun and P. Moyret and D. Nisbet and K. Nishida and M. O'Neil and M. Ohta and M. Paoluzzi and C. Pasquino and H. Pereira and J. Rochez and {Sanchez Alvarez}, J. and {Sanchez Arias}, J. and R. Scrivens and T. Shibata and D. Steyaert and N. Thaus and T. Yamamoto",

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AU - Lettry, J.

AU - Aguglia, D.

AU - Andersson, P.

AU - Bertolo, S.

AU - Butterworth, A.

AU - Coutron, Y.

AU - Dallocchio, A.

AU - Chaudet, E.

AU - Gil-Flores, J.

AU - Guida, R.

AU - Hansen, J.

AU - Hatayama, Akiyoshi

AU - Koszar, I.

AU - Mahner, E.

AU - Mastrostefano, C.

AU - Mathot, S.

AU - Mattei, S.

AU - Midttun,

AU - Moyret, P.

AU - Nisbet, D.

AU - Nishida, K.

AU - O'Neil, M.

AU - Ohta, M.

AU - Paoluzzi, M.

AU - Pasquino, C.

AU - Pereira, H.

AU - Rochez, J.

AU - Sanchez Alvarez, J.

AU - Sanchez Arias, J.

AU - Scrivens, R.

AU - Shibata, T.

AU - Steyaert, D.

AU - Thaus, N.

AU - Yamamoto, T.

PY - 2014/2

Y1 - 2014/2

N2 - CERN's Linac4 45 kV H- ion sources prototypes are installed at a dedicated ion source test stand and in the Linac4 tunnel. The operation of the pulsed hydrogen injection, RF sustained plasma, and pulsed high voltages are described. The first experimental results of two prototypes relying on 2 MHz RF-plasma heating are presented. The plasma is ignited via capacitive coupling, and sustained by inductive coupling. The light emitted from the plasma is collected by viewports pointing to the plasma chamber wall in the middle of the RF solenoid and to the plasma chamber axis. Preliminary measurements of optical emission spectroscopy and photometry of the plasma have been performed. The design of a cesiated ion source is presented. The volume source has produced a 45 keV H- beam of 16-22 mA which has successfully been used for the commissioning of the Low Energy Beam Transport (LEBT), Radio Frequency Quadrupole (RFQ) accelerator, and chopper of Linac4.

AB - CERN's Linac4 45 kV H- ion sources prototypes are installed at a dedicated ion source test stand and in the Linac4 tunnel. The operation of the pulsed hydrogen injection, RF sustained plasma, and pulsed high voltages are described. The first experimental results of two prototypes relying on 2 MHz RF-plasma heating are presented. The plasma is ignited via capacitive coupling, and sustained by inductive coupling. The light emitted from the plasma is collected by viewports pointing to the plasma chamber wall in the middle of the RF solenoid and to the plasma chamber axis. Preliminary measurements of optical emission spectroscopy and photometry of the plasma have been performed. The design of a cesiated ion source is presented. The volume source has produced a 45 keV H- beam of 16-22 mA which has successfully been used for the commissioning of the Low Energy Beam Transport (LEBT), Radio Frequency Quadrupole (RFQ) accelerator, and chopper of Linac4.

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Status and operation of the Linac4 ion source prototypes

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