First tests of the I-BEAT detector as primary monitor for target normal sheath accelerated protons

Balling, Felix; Gerlach, Sonja; Schmidt, A.; Bagnoud, V.; Hornung, J.; Zielbauer, B.; Parodi, Katia; Schreiber, Jörg

doi:10.1117/12.2592415

Cited by 1 publication

(4 citation statements)

References 9 publications

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“…This suggests that less than 10 5 protons/mm 2 even in low-ionizing regions can be detected. An earlier version without modulators has been successfully tested in close vicinity to the laser target and showed little disturbance to EMP or other noise sources [32] .…”

Section: Discussionmentioning

confidence: 99%

“…For all simulations a reference differential TNSA angular and energy proton spectrum with a maximum energy of 60 MeV was assumed [32] . Both, energy and angular distributions, were included in a FLUKA source file to calculate the energy distribution in the detector [36,37] .…”

Section: Methodsmentioning

confidence: 99%

“…Fig. 1 (b) shows a representative simulated depth-dose distribution for the reference case with ten modulator foils and an input proton spectrum as accelerated by the PHELIX-laser at the GSI [32] .…”

Section: Modulator Foilsmentioning

confidence: 99%

“…These spectra range over orders of magnitude and the corresponding energy densities deposited in matter are typically dominated by the low-energy particles. Therefore, the dynamic range of ionoacoustic measurements often is insufficient to measure and reconstruct the entire spectrum and is sensitive only to their low energetic components [27,32] .…”

Section: Introductionmentioning

confidence: 99%

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Ion-bunch energy acoustic tracing by modulation of the depth-dose curve

Prasselsperger

Balling

Wieser

et al. 2023

High Pow Laser Sci Eng

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Characterizing exact energy density distributions for laser-accelerated ion bunches in a medium is challenging due to very high beam intensities and the electro-magnetic pulse (EMP) emitted in the laser-plasma interaction. Ion-bunch energy acoustic tracing (I-BEAT) allows for reconstructing the spatial energy density from the ionoacoustic wave generated upon impact in water. We have extended this approach to tracing ionoacoustic modulations of broad energy distributions (TIMBRE) by introducing thin foils in the water reservoir to shape the acoustic waves at distinct points along the depthdose curve. Here, we present first simulation studies of this new detector and reconstruction approach which provides on-line read-out of the deposited energy with depth within centimeter range behind the ion source of state-of-the-art laser-plasma based accelerators.

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Section: Discussionmentioning

confidence: 99%