A scintillating fiber imaging spectrometer for active characterisation of laser-driven proton beams
Patel, J. K. and Armstrong, C. D. and Wilson, R. and Alderton, M. and Dolier, E. J. and Frazer, T. P. and Horne, A. and Lofrese, A. and Peat, M. and Woodward, M. and Zielbauer, B and Clarke, R. J. and Deas, R. and Rajeev, P. P. and Gray, R. J. and McKenna, P. (2024) A scintillating fiber imaging spectrometer for active characterisation of laser-driven proton beams. High Power Laser Science and Engineering. ISSN 2052-3289 (In Press) (https://doi.org/10.1017/hpl.2024.62)
Text.
Filename: Patel-etal-HPLSE-2024-A-scintillating-fiber-imaging-spectrometer-for-active-characterisation-of-laser-driven-proton-beams.pdf
Accepted Author Manuscript Restricted to Repository staff only until 1 January 2099. Download (10MB) | Request a copy |
Abstract
Next generation high-power laser facilities are expected to generate hundreds-of-MeV proton beams and operate at multi-Hz repetition-rates, presenting opportunities for medical, industrial and scientific applications requiring bright pulses of energetic ions. Characterising the spectro-spatial profile of these ions at high repetition-rates in the harsh radiation environments created by laser-plasma interactions remains challenging but is paramount for further source development. To address this, we present a compact scintillating fiber imaging spectrometer based on the tomographic reconstruction of proton energy deposition in a layered fiber array. Modelling indicates that spatial resolution of ∼1 mm and energy resolution of<10% at protons energies>20 MeV are readily achievable with existing 100 μmdiameter fibers. Measurements with a prototype beam profile monitor using 500 μmfibers demonstrate active readout with invulnerability to electromagnetic pulses, and <100 Gy sensitivity. The performance of the full instrument concept is explored with Monte-Carlo simulations, accurately reconstructing a proton beam with a multiple-component spectro-spatial profile.
ORCID iDs
Patel, J. K., Armstrong, C. D., Wilson, R., Alderton, M. ORCID: https://orcid.org/0000-0002-4043-0393, Dolier, E. J., Frazer, T. P., Horne, A., Lofrese, A., Peat, M., Woodward, M., Zielbauer, B, Clarke, R. J., Deas, R., Rajeev, P. P., Gray, R. J. ORCID: https://orcid.org/0000-0003-0610-9595 and McKenna, P. ORCID: https://orcid.org/0000-0001-8061-7091;-
-
Item type: Article ID code: 90612 Dates: DateEvent11 September 2024Published11 September 2024AcceptedSubjects: Science > Physics > Optics. Light Department: Faculty of Science > Physics
Strategic Research Themes > Measurement Science and Enabling TechnologiesDepositing user: Pure Administrator Date deposited: 20 Sep 2024 13:27 Last modified: 20 Sep 2024 13:27 URI: https://strathprints.strath.ac.uk/id/eprint/90612