ArticleJournal of medical physics
Evaluation of the Mini-ridge Filter's Impact on the Generation of Secondary Radiation in Synchrotron-based Proton Beam Therapy.
Article in Journal of medical physics. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- Reduced beam time and distal linear energy transfer with mini-ridge filters in pencil beam scanning proton therapy.Physics and imaging in radiation oncology · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Purpose: This study evaluated whether the mini-ridge filter (MRF) used for beam energy optimization in a synchrotron-based proton beam therapy (PBT) affects the generation of secondary neutrons and photons. Materials and Methods: Secondary radiation from the PBT was evaluated using a Monte Carlo simulation (MCS) with the Particle and Heavy-ion Transport code System (version 3.31), and the PROBEAT-M1 system (Hitachi, Japan) was modeled. In the analysis, we focused on the production of neutrons and photons in a 35 cm ×35 cm ×35 cm water phantom with and without MRF to ensure the accuracy of the dose calculation. Results: The MCS results were in good agreement with the measurement results, and the off-axis ratio at the center of the spread-out Bragg peak was 100% at a gamma analysis pass rate of 2 mm/2%. The photon fluence decreased by 4.0 and 0.9% at 70.2 and 228.7 MeV, respectively, but no significant effect on total neutron and photon production was observed ( Conclusions: These results demonstrated that MRF had a limited effect on the generation of secondary radiation in PBT. MRF, which is used to improve dose distribution, has the potential to be safely used without increasing secondary radiation, and MRF might not affected to generate secondary radiation to clinically meaningful levels.
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Registered trials
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