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Title: Linac4 low energy beam measurements with negative hydrogen ions

Abstract

Linac4, a 160 MeV normal-conducting H{sup −} linear accelerator, is the first step in the upgrade of the beam intensity available from the LHC proton injectors at CERN. The Linac4 Low Energy Beam Transport (LEBT) line from the pulsed 2 MHz RF driven ion source, to the 352 MHz RFQ (Radiofrequency Quadrupole) has been built and installed at a test stand, and has been used to transport and match to the RFQ a pulsed 14 mA H{sup −} beam at 45 keV. A temporary slit-and-grid emittance measurement system has been put in place to characterize the beam delivered to the RFQ. In this paper a description of the LEBT and its beam diagnostics is given, and the results of beam emittance measurements and beam transmission measurements through the RFQ are compared with the expectation from simulations.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;  [1]
  1. CERN, 1211 Geneva 23 (Switzerland)
Publication Date:
OSTI Identifier:
22253186
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) 2013 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 EMITTANCE; BEAM TRANSPORT; BEAMS; CERN; CERN LHC; GRIDS; HYDROGEN IONS; LINEAR ACCELERATORS; MEV RANGE 100-1000; PROTONS; PULSES; RADIOWAVE RADIATION

Citation Formats

Scrivens, R., E-mail: richard.scrivens@cern.ch, Bellodi, G., Crettiez, O., Dimov, V., Gerard, D., Granemann Souza, E., Guida, R., Hansen, J., Lallement, J. -B., Lettry, J., Lombardi, A., Midttun, Ø., Pasquino, C., Raich, U., Riffaud, B., Roncarolo, F., Valerio-Lizarraga, C. A., Wallner, J., Yarmohammadi Satri, M., and Zickler, T. Linac4 low energy beam measurements with negative hydrogen ions. United States: N. p., 2014. Web. doi:10.1063/1.4847195.
Scrivens, R., E-mail: richard.scrivens@cern.ch, Bellodi, G., Crettiez, O., Dimov, V., Gerard, D., Granemann Souza, E., Guida, R., Hansen, J., Lallement, J. -B., Lettry, J., Lombardi, A., Midttun, Ø., Pasquino, C., Raich, U., Riffaud, B., Roncarolo, F., Valerio-Lizarraga, C. A., Wallner, J., Yarmohammadi Satri, M., & Zickler, T. Linac4 low energy beam measurements with negative hydrogen ions. United States. https://doi.org/10.1063/1.4847195
Scrivens, R., E-mail: richard.scrivens@cern.ch, Bellodi, G., Crettiez, O., Dimov, V., Gerard, D., Granemann Souza, E., Guida, R., Hansen, J., Lallement, J. -B., Lettry, J., Lombardi, A., Midttun, Ø., Pasquino, C., Raich, U., Riffaud, B., Roncarolo, F., Valerio-Lizarraga, C. A., Wallner, J., Yarmohammadi Satri, M., and Zickler, T. 2014. "Linac4 low energy beam measurements with negative hydrogen ions". United States. https://doi.org/10.1063/1.4847195.
@article{osti_22253186,
title = {Linac4 low energy beam measurements with negative hydrogen ions},
author = {Scrivens, R., E-mail: richard.scrivens@cern.ch and Bellodi, G. and Crettiez, O. and Dimov, V. and Gerard, D. and Granemann Souza, E. and Guida, R. and Hansen, J. and Lallement, J. -B. and Lettry, J. and Lombardi, A. and Midttun, Ø. and Pasquino, C. and Raich, U. and Riffaud, B. and Roncarolo, F. and Valerio-Lizarraga, C. A. and Wallner, J. and Yarmohammadi Satri, M. and Zickler, T.},
abstractNote = {Linac4, a 160 MeV normal-conducting H{sup −} linear accelerator, is the first step in the upgrade of the beam intensity available from the LHC proton injectors at CERN. The Linac4 Low Energy Beam Transport (LEBT) line from the pulsed 2 MHz RF driven ion source, to the 352 MHz RFQ (Radiofrequency Quadrupole) has been built and installed at a test stand, and has been used to transport and match to the RFQ a pulsed 14 mA H{sup −} beam at 45 keV. A temporary slit-and-grid emittance measurement system has been put in place to characterize the beam delivered to the RFQ. In this paper a description of the LEBT and its beam diagnostics is given, and the results of beam emittance measurements and beam transmission measurements through the RFQ are compared with the expectation from simulations.},
doi = {10.1063/1.4847195},
url = {https://www.osti.gov/biblio/22253186}, 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}
}