期刊
REVIEW OF SCIENTIFIC INSTRUMENTS
卷 80, 期 3, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3086424
关键词
plasma accelerators; proton beams; proton detection
资金
- TRIDENT
- LULI
- VULCAN
- PHELIX
- Max-Planck-Institut
- Helmholtz Association
- Laserlab Europe [RII3-CT-2003-506350]
- EU [1999-0052]
- EPSRC (U.K.) [EP/E048668/1]
- Ile-de-france [E1127]
- Engineering and Physical Sciences Research Council [EP/E048668/1] Funding Source: researchfish
- EPSRC [EP/E048668/1] Funding Source: UKRI
This article reports on an experimental method to fully reconstruct laser-accelerated proton beam parameters called radiochromic film imaging spectroscopy (RIS). RIS allows for the characterization of proton beams concerning real and virtual source size, envelope- and microdivergence, normalized transverse emittance, phase space, and proton spectrum. This technique requires particular targets and a high resolution proton detector. Therefore thin gold foils with a microgrooved rear side were manufactured and characterized. Calibrated GafChromic radiochromic film (RCF) types MD-55, HS, and HD-810 in stack configuration were used as spatial and energy resolved film detectors. The principle of the RCF imaging spectroscopy was demonstrated at four different laser systems. This can be a method to characterize a laser system with respect to its proton-acceleration capability. In addition, an algorithm to calculate the spatial and energy resolved proton distribution has been developed and tested to get a better idea of laser-accelerated proton beams and their energy deposition with respect to further applications.
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