miniSCIDOM: a scintillator-based tomograph for volumetric dose reconstruction of single laser-driven proton bunches
| Autor: | A. Corvino, M. Reimold, E. Beyreuther, F.-E. Brack, F. Kroll, J. Pawelke, J. D. Schilz, M. Schneider, U. Schramm, M. E. P. Umlandt, K. Zeil, T. Ziegler, J. Metzkes-Ng |
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| Jazyk: | angličtina |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | High Power Laser Science and Engineering, Vol 12 (2024) |
| Druh dokumentu: | article |
| ISSN: | 2095-4719 2052-3289 |
| DOI: | 10.1017/hpl.2024.1 |
| Popis: | Laser plasma accelerators (LPAs) enable the generation of intense and short proton bunches on a micrometre scale, thus offering new experimental capabilities to research fields such as ultra-high dose rate radiobiology or material analysis. Being spectrally broadband, laser-accelerated proton bunches allow for tailored volumetric dose deposition in a sample via single bunches to excite or probe specific sample properties. The rising number of such experiments indicates a need for diagnostics providing spatially resolved characterization of dose distributions with volumes of approximately 1 cm ${}^3$ for single proton bunches to allow for fast online feedback. Here we present the scintillator-based miniSCIDOM detector for online single-bunch tomographic reconstruction of dose distributions in volumes of up to approximately 1 cm ${}^3$ . The detector achieves a spatial resolution below 500 $\unicode{x3bc}$ m and a sensitivity of 100 mGy. The detector performance is tested at a proton therapy cyclotron and an LPA proton source. The experiments’ primary focus is the characterization of the scintillator’s ionization quenching behaviour. |
| Databáze: | Directory of Open Access Journals |
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