An online, energy-resolving beam profile detector for laser-driven proton beams
An online, energy-resolving beam profile detector for laser-driven proton beams
Metzkes, J.; Zeil, K.; Kraft, S. D.; Karsch, L.; Sobiella, M.; Rehwald, M.; Obst, L.; Schlenvoigt, H.-P.; Schramm, U.
In this paper, a scintillator-based online beam profile detector for the characterization of laser-driven proton beams is presented. Using a pixelated matrix with varying absorber thicknesses, the proton beam is spatially resolved in two spatial dimensions and simultaneously energy-resolved. A thin plastic scintillator placed behind the absorber and read out by a CCD camera is used as the active detector material. The spatial detector resolution reaches down to ~4mm and up to 9 energy ranges can be resolved with an energy resolution of ~1 MeV above 8 MeV proton energy. With these detector design parameters, the spatial characteristics of the proton distribution and its cut-off energy can be analyzed online and on-shot under vacuum conditions. The paper discusses the detector design, its characterization and calibration at a conventional proton source as well as the first detector application at a laser-driven proton source.
Keywords: laser-driven proton acceleration; scintillator-based online detectors
Involved research facilities
- Ion Beam Center DOI: 10.17815/jlsrf-3-159
Related publications
- DOI: 10.17815/jlsrf-3-159 is cited by this (Id 23566) publication
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DOI: 10.1063/1.4961576
Cited 18 times in Scopus
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