ArticleMedical physics2025
Proof-of-principle of 3D-printed track-end detectors for dosimetry in proton therapy.
Article in Medical physics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Proof-of-principle of 3D-printed track-end detectors for dosimetry in proton therapy.Medical physics · 2025Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundDosimetric equipment in particle therapy (PT) is associated with high costs. There is a lack of versatile, tissue-equivalent detectors suitable for in-vivo dosimetry. Faraday-cup (FC) type detectors are sensitive to stopped protons, that is, to track-ends (TEs). They experience a renaissance in PT as they can cope with high dose rates. Owing to their simple functional principle, production of FC could benefit from the dynamic technological developments in additive manufacturing of sensors. PURPOSE: To build FC-type detectors for PT by standard 3D-printing. This study seeks to build an integrating, single-channel (SC) FC for replacement of a traditional FC and a
methodsSamples of FCs were produced with a dual-extruder 3D-printer with polylactic-acid filaments, which contained graphite in the conductive parts of the detector. Production was optimized in terms of materials and printing temperature. Samples were characterized by electrical tests and non-destructive 3D x-ray imaging. Beam tests were conducted at a clinical PT machine.
resultsOperational FC-type detectors for proton fields were printed. The detected charge of the SC FC corresponded qualitatively to the one of a traditional FC. A
conclusions3D-printing is a viable method for producing low-cost, tissue-equivalent, FC-type detectors for PT. They could potentially be used as TE detectors in anthropomorphic phantoms.
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