Articles with "proton beams" as a keyword



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Therapeutic proton beams: LET, RBE and microdosimetric spectra with gas and silicon detectors

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Published in 2020 at "Radiation Measurements"

DOI: 10.1016/j.radmeas.2020.106386

Abstract: Abstract A sealed mini-TEPC able to work in gas-steady modality, a monolithic silicon device composed by a matrix of micrometric cylindrical diodes and a residual energy measurement stage and the silicon MicroPlus Bridge detector were… read more here.

Keywords: therapeutic proton; gas; proton beams; silicon ... See more keywords
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Chemically tuned linear energy transfer dependent quenching in a deformable, radiochromic 3D dosimeter.

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Published in 2017 at "Physics in medicine and biology"

DOI: 10.1088/1361-6560/aa512a

Abstract: Most solid-state detectors, including 3D dosimeters, show lower signal in the Bragg peak than expected, a process termed quenching. The purpose of this study was to investigate how variation in chemical composition of a recently… read more here.

Keywords: dosimeter; energy transfer; linear energy; proton beams ... See more keywords
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Monte Carlo calculation of beam quality correction factors in proton beams using PENH.

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Published in 2019 at "Physics in medicine and biology"

DOI: 10.1088/1361-6560/ab3b94

Abstract: This work calculates beam quality correction factors (kQ) in both modulated and unmodulated proton beams using the Monte Carlo code PENH. The latest ICRU 90 recommendations on key data for ionizing-radiation dosimetry were adopted to… read more here.

Keywords: factors proton; sub sub; monte carlo; sub factors ... See more keywords
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DIFFERENCE IN DEGREE OF SUB-LETHAL DAMAGE RECOVERY BETWEEN CLINICAL PROTON BEAMS AND X-RAYS.

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Published in 2019 at "Radiation protection dosimetry"

DOI: 10.1093/rpd/ncy270

Abstract: Fractionated proton beam radiotherapy is spreading worldwide these days. However, biological data of sub-lethal damage recovery (SLDR) after proton irradiation is not known yet. We here conducted split-dose experiments (20-360 min intervals) to clarify SLDR… read more here.

Keywords: recovery; sub lethal; proton; damage recovery ... See more keywords
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Designing of active plasma lens for focusing laser-plasma-accelerated pulsed proton beams

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Published in 2021 at "Physical review accelerators and beams"

DOI: 10.1103/physrevaccelbeams.24.031301

Abstract: Active plasma lenses (APLs) have been proved as an effective device for focusing charged particles. In this paper, we have theoretically studied the feasibility of using a discharged-capillary based high gradient APL to focus laser… read more here.

Keywords: pulsed proton; accelerated pulsed; active plasma; proton ... See more keywords
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Ce- and B-Doped Silica Fibers for Monitoring Low-Energy Proton Beams on a Medical Cyclotron

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Published in 2020 at "Applied Sciences"

DOI: 10.3390/app10134488

Abstract: Many medical isotopes can be produced on a small cyclotron. The alignment and profiles of low-energy proton beams from cyclotrons used for medical radioisotope production, such as the TR13 cyclotron at TRIUMF, Canada, cannot be… read more here.

Keywords: cyclotron; target; doped silica; energy proton ... See more keywords
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In Vitro Comparison of Passive and Active Clinical Proton Beams

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Published in 2020 at "International Journal of Molecular Sciences"

DOI: 10.3390/ijms21165650

Abstract: Nowadays, the irradiation methodology in proton therapy is switching from the use of passively scattered beams to active pencil beams due to the possibility of more conformal dose distributions. The dose rates of active pencil… read more here.

Keywords: two modes; passive active; vitro comparison; proton beams ... See more keywords