JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@unpublished{gibson:ibic2022-wep19, author = {S.M. Gibson and S.E. Alden and L.J. Nevay}, title = {{A Raster Scanning Laser-Sculptor for Hydrogen Ion Beam Diagnostics}}, % booktitle = {Proc. IBIC'22}, booktitle = {Proc. 11th Int. Beam Instrum. Conf. (IBIC'22)}, language = {english}, intype = {presented at the}, series = {International Beam Instrumentation Conference}, number = {11}, venue = {Kraków, Poland}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {12}, year = {2022}, note = {presented at IBIC'22 in Kraków, Poland, unpublished}, abstract = {{A novel scheme for laser sculpting a neutralised hydrogen beam from a parent beam of hydrogen ions circulating in a racetrack accelerator was proposed at IPAC19*. Such a method was shown in simulation to produce a particle beam with reduced transverse emittance, based on a simple static laser sculptor geometry. This paper investigates effects of translating or raster scanning a focussed laser-sculptor transversely within the hydrogen ion beam, which creates new possibilities for non-invasive beam diagnostics of the transverse phase space. The optimisation of the optical geometry, intensity and the temporal characteristics of the laser beam are investigated for laser-induced extraction of neutralised beamlets, from which the beam profile and emittance can be reconstructed. Photo-detachment simulations are performed in a photon-particle interaction framework that has been implemented in BDSIM, a Geant4 based particle tracking code**. We evaluate the design of a potential experimental demonstration at a hydrogen ion linac, the Front End Test Stand, at Rutherford Appleton Laboratory, UK.}}, }