Status of and Future Plans for the CERN LINAC4 Emittance Meter based on Laser Electron-Detachment and a Diamond Strip-Detector

Thomas Hofmann; Enrico Bravin; Uli Raich; Federico Roncarolo; Francesca Zocca; Gary Boorman; Alessio Bosco; Stephen Gibson; Konstantin Kruchinin; E. Griesmayer

Status of and Future Plans for the CERN LINAC4 Emittance Meter based on Laser Electron-Detachment and a Diamond Strip-Detector

Thomas Hofmann, Enrico Bravin, Uli Raich, Federico Roncarolo, Francesca Zocca, Gary Boorman, Alessio Bosco, Stephen Gibson, Konstantin Kruchinin, E. Griesmayer

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

LINAC4 has started its staged commissioning at CERN. After completion it will accelerate high brightness H− beams to 160 MeV. To measure the transverse profile and emittance of the beam, a non-destructive method based on electron photo-detachment is proposed, using a pulsed, fibre-coupled laser to strip electrons from the H− ions. The laser can be focused and scanned through the H− beam, acting like a conventional slit. A downstream dipole separates the neutral H0 beamlet, created by the laser interaction, from the main H− beam, so that it can be measured by a diamond strip-detector. Combining the H0 beamlet profiles with the laser position allows the transverse emittance to be reconstructed. A prototype of this instrument was tested while commissioning the LINAC4 at 3 and 12 MeV. In this paper we shall describe the experimental setup, challenges and results of the measurements, and also address the characteristics and performance of the diamond strip-detector subsystem. In addition, the proposal for a permanent system at 160 MeV, including an electron detector for a direct profile measurement, will be presented.

Original language	English
Title of host publication	3rd International Beam Instrumentation Conference
Subtitle of host publication	Monterey, CA, USA, September 14-18, 2014.
Chapter	Beam Profile Monitors
Pages	83-87
Number of pages	5
ISBN (Electronic)	978-3-95450-141-0
Publication status	Published - 18 Sept 2014

Access to Document

http://jacow.org/IBIC2014/papers/mopf15.pdf

Cite this

Hofmann, T., Bravin, E., Raich, U., Roncarolo, F., Zocca, F., Boorman, G., Bosco, A., Gibson, S., Kruchinin, K., & Griesmayer, E. (2014). Status of and Future Plans for the CERN LINAC4 Emittance Meter based on Laser Electron-Detachment and a Diamond Strip-Detector. In 3rd International Beam Instrumentation Conference: Monterey, CA, USA, September 14-18, 2014. (pp. 83-87). Article MOPF15 http://jacow.org/IBIC2014/papers/mopf15.pdf

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title = "Status of and Future Plans for the CERN LINAC4 Emittance Meter based on Laser Electron-Detachment and a Diamond Strip-Detector",

abstract = "LINAC4 has started its staged commissioning at CERN. After completion it will accelerate high brightness H− beams to 160 MeV. To measure the transverse profile and emittance of the beam, a non-destructive method based on electron photo-detachment is proposed, using a pulsed, fibre-coupled laser to strip electrons from the H− ions. The laser can be focused and scanned through the H− beam, acting like a conventional slit. A downstream dipole separates the neutral H0 beamlet, created by the laser interaction, from the main H− beam, so that it can be measured by a diamond strip-detector. Combining the H0 beamlet profiles with the laser position allows the transverse emittance to be reconstructed. A prototype of this instrument was tested while commissioning the LINAC4 at 3 and 12 MeV. In this paper we shall describe the experimental setup, challenges and results of the measurements, and also address the characteristics and performance of the diamond strip-detector subsystem. In addition, the proposal for a permanent system at 160 MeV, including an electron detector for a direct profile measurement, will be presented.",

author = "Thomas Hofmann and Enrico Bravin and Uli Raich and Federico Roncarolo and Francesca Zocca and Gary Boorman and Alessio Bosco and Stephen Gibson and Konstantin Kruchinin and E. Griesmayer",

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Hofmann, T, Bravin, E, Raich, U, Roncarolo, F, Zocca, F, Boorman, G , Bosco, A , Gibson, S, Kruchinin, K & Griesmayer, E 2014, Status of and Future Plans for the CERN LINAC4 Emittance Meter based on Laser Electron-Detachment and a Diamond Strip-Detector. in 3rd International Beam Instrumentation Conference: Monterey, CA, USA, September 14-18, 2014.., MOPF15, pp. 83-87. <http://jacow.org/IBIC2014/papers/mopf15.pdf>

Status of and Future Plans for the CERN LINAC4 Emittance Meter based on Laser Electron-Detachment and a Diamond Strip-Detector. / Hofmann, Thomas; Bravin, Enrico; Raich, Uli et al.
3rd International Beam Instrumentation Conference: Monterey, CA, USA, September 14-18, 2014.. 2014. p. 83-87 MOPF15.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Status of and Future Plans for the CERN LINAC4 Emittance Meter based on Laser Electron-Detachment and a Diamond Strip-Detector

AU - Hofmann, Thomas

AU - Bravin, Enrico

AU - Raich, Uli

AU - Roncarolo, Federico

AU - Zocca, Francesca

AU - Boorman, Gary

AU - Bosco, Alessio

AU - Gibson, Stephen

AU - Kruchinin, Konstantin

AU - Griesmayer, E.

PY - 2014/9/18

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N2 - LINAC4 has started its staged commissioning at CERN. After completion it will accelerate high brightness H− beams to 160 MeV. To measure the transverse profile and emittance of the beam, a non-destructive method based on electron photo-detachment is proposed, using a pulsed, fibre-coupled laser to strip electrons from the H− ions. The laser can be focused and scanned through the H− beam, acting like a conventional slit. A downstream dipole separates the neutral H0 beamlet, created by the laser interaction, from the main H− beam, so that it can be measured by a diamond strip-detector. Combining the H0 beamlet profiles with the laser position allows the transverse emittance to be reconstructed. A prototype of this instrument was tested while commissioning the LINAC4 at 3 and 12 MeV. In this paper we shall describe the experimental setup, challenges and results of the measurements, and also address the characteristics and performance of the diamond strip-detector subsystem. In addition, the proposal for a permanent system at 160 MeV, including an electron detector for a direct profile measurement, will be presented.

AB - LINAC4 has started its staged commissioning at CERN. After completion it will accelerate high brightness H− beams to 160 MeV. To measure the transverse profile and emittance of the beam, a non-destructive method based on electron photo-detachment is proposed, using a pulsed, fibre-coupled laser to strip electrons from the H− ions. The laser can be focused and scanned through the H− beam, acting like a conventional slit. A downstream dipole separates the neutral H0 beamlet, created by the laser interaction, from the main H− beam, so that it can be measured by a diamond strip-detector. Combining the H0 beamlet profiles with the laser position allows the transverse emittance to be reconstructed. A prototype of this instrument was tested while commissioning the LINAC4 at 3 and 12 MeV. In this paper we shall describe the experimental setup, challenges and results of the measurements, and also address the characteristics and performance of the diamond strip-detector subsystem. In addition, the proposal for a permanent system at 160 MeV, including an electron detector for a direct profile measurement, will be presented.

M3 - Conference contribution

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EP - 87

BT - 3rd International Beam Instrumentation Conference

ER -