An online, energy-resolving beam profile detector for laser-driven proton beams.
Rev Sci Instrum
; 87(8): 083310, 2016 Aug.
Article
en En
| MEDLINE
| ID: mdl-27587116
ABSTRACT
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 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 â¼4 mm and the detector can resolve proton beam profiles for up to 9 proton threshold energies. 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.
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MEDLINE
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En
Revista:
Rev Sci Instrum
Año:
2016
Tipo del documento:
Article
País de afiliación:
Alemania