Demonstration of a laserwire emittance scanner for hydrogen ion beams at CERN. / Hofmann, Thomas; Kruchinin, Konstantin; Bosco, Alessio; Gibson, Stephen; Roncarolo, Federico; Boorman, Gary; Raich, Uli; Bravin, Enrico; Pozimski, Juergen; Letchford, Alan; Gabor, Christoph.
In: Physical Review Special Topics: Accelerators and Beams, Vol. 18, No. 12, 122801, 21.12.2015, p. 1-10.Research output: Contribution to journal › Article
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- http://journals.aps.org/prab/abstract/10.1103/PhysRevSTAB.18.122801
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Abstract
A non-invasive, compact laserwire system has been developed to measure the transverse emittance of an H− beam and has been demonstrated at the new LINAC4 injector for the LHC at CERN. Light from a low power, pulsed laser source is conveyed via fibre to collide with the H− beam, a fraction of which is neutralized and then intercepted by a downstream diamond detector. Scanning the focused laser across the H− beam and measuring the distribution of the photo-neutralized particles enables the transverse emittance to be reconstructed. The vertical phase-space distribution of a 3 MeV beam during LINAC4 commissioning has been measured by the laserwire and verified with a conventional slit and grid method.
| Original language | English |
|---|---|
| Article number | 122801 |
| Pages (from-to) | 1-10 |
| Number of pages | 10 |
| Journal | Physical Review Special Topics: Accelerators and Beams |
| Volume | 18 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 21 Dec 2015 |
This open access research output is licenced under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.
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