Response characterization of radiochromic OC-1 films in photon, electron, and proton beams.
Sign Up to like & getrecommendations! Published in 2024 at "Medical physics"
DOI: 10.1002/mp.17356
Abstract: BACKGROUND Radiochromic film (RCF) dosimeters with their high spatial resolution and tissue equivalent properties are conveniently used for two-dimensional and small-field dosimetry. OC-1 is a new model of RCF dosimeter that was commercially introduced recently.… read more here.
Keywords: dependency; proton; proton beams; response ... See more keywords
Therapeutic proton beams: LET, RBE and microdosimetric spectra with gas and silicon detectors
Sign Up to like & getrecommendations! 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
High-flux angularly uniform proton beams from multiple laser interaction with wire-hemisphere targets
Sign Up to like & getrecommendations! Published in 2024 at "High Power Laser Science and Engineering"
DOI: 10.1017/hpl.2024.55
Abstract: Abstract A scheme for generating high-flux angularly uniform proton beams with high laser-to-proton energy conversion efficiency is proposed. Three laser beams are focused on a microwire array attached to a solid-density hemispheric target. The laser-driven… read more here.
Keywords: proton; flux angularly; proton beams; uniform proton ... See more keywords
Modulation of laser-driven proton beams in underdense plasma
Sign Up to like & getrecommendations! Published in 2024 at "Physics of Plasmas"
DOI: 10.1063/5.0217978
Abstract: Particle-in-cell simulations have been carried out to investigate the behavior of pulsed proton beams accelerated by laser within underdense plasma. The results reveal that wakefields generated by the proton beam effectively focus the proton beam,… read more here.
Keywords: proton beam; laser; proton; proton beams ... See more keywords
Chemically tuned linear energy transfer dependent quenching in a deformable, radiochromic 3D dosimeter.
Sign Up to like & getrecommendations! 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
Monte Carlo calculation of beam quality correction factors in proton beams using PENH.
Sign Up to like & getrecommendations! 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
Radiation measurements using Timepix3 with silicon sensor and bare chip in proton beams for FLASH radiotherapy
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Instrumentation"
DOI: 10.1088/1748-0221/20/04/c04030
Abstract: This study investigates the response of Timepix3 semiconductor pixel detectors in proton beams of varying intensities, with a focus on FLASH proton therapy. Using the Timepix3 application-specific integrated circuit (ASIC) chip, we measured the spatial… read more here.
Keywords: proton beams; sensor; using timepix3; chip ... See more keywords
DIFFERENCE IN DEGREE OF SUB-LETHAL DAMAGE RECOVERY BETWEEN CLINICAL PROTON BEAMS AND X-RAYS.
Sign Up to like & getrecommendations! 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
Designing of active plasma lens for focusing laser-plasma-accelerated pulsed proton beams
Sign Up to like & getrecommendations! 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
Ce- and B-Doped Silica Fibers for Monitoring Low-Energy Proton Beams on a Medical Cyclotron
Sign Up to like & getrecommendations! 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
In Vitro Comparison of Passive and Active Clinical Proton Beams
Sign Up to like & getrecommendations! 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