An online, energy-resolving beam profile detector for laser-driven proton beams

Journal Article · Mon Aug 15 00:00:00 EDT 2016 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4961576· OSTI ID:22597650

Metzkes, J.; Rehwald, M.; Obst, L.; Schramm, U. ^[1]; Zeil, K.; Kraft, S. D.; Sobiella, M.; Schlenvoigt, H. -P. ^[1]; Karsch, L. ^[2]

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1. Helmholtz-Zentrum Dresden–Rossendorf (HZDR), Bautzner Landstr. 400, 01328 Dresden (Germany)
2. OncoRay-National Center for Radiation Research in Oncology, Technische Universität Dresden, 01307 Dresden (Germany)

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 ∼4 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.

• OSTI ID: 22597650
• Journal Information: Review of Scientific Instruments, Vol. 87, Issue 8; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BEAM PROFILES
CALIBRATION
CAMERAS
CHARGE-COUPLED DEVICES
DISTRIBUTION
LASERS
PLASTIC SCINTILLATORS
PROTON BEAMS
PROTON SOURCES
PROTONS
READOUT SYSTEMS
THICKNESS
THRESHOLD ENERGY