A ring-shaped recombination chamber for hadron therapy dosimetry

Abstract. This work presents recombination methods used for secondary radiation measurements at the Facility for Proton Radiotherapy of Eye Cancer at the Institute for Nuclear Physics, IFJ, in Krakow (Poland). The measurements of H*(10) were performed, with REM-2 tissue equivalent chamber in two halls of cyclotrons AIC-144 and Proteus C-235 and in the corridors close to treatment rooms. The measurements were completed by determination of gamma radiation component, using a hydrogen-free recombination chamber. The results were compared with the measurements using rem meter types FHT 762 (WENDI-II) and NM2 FHT 192 gamma probe and with stationary dosimetric system.

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“…The same method has been successfully used in our earlier measurements at proton therapy facilities [27,28].…”

Section: Methodsmentioning

confidence: 99%

Ambient dose equivalent measurements in secondary radiation fields at proton therapy facility CCB IFJ PAN in Krakow using recombination chambers

et al. 2016

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“…It has experience in the dosimetry of mixed and difficult to characterize ionization fields and beam parameters, determining quantities such as absorbed dose of each radiation component or radiation quality factor. The team has original experience in measurements of the radiation field/beam for selected medical facilities: x-ray radiotherapy, 3,4 x-ray radiography, 5,6 proton therapy, 7,8 BNCT, [9][10][11] and PET tomography. 12 The activities of the Radiobiological Laboratory focus on exposure to radiation of human cell cultures.…”

Section: Reactor Laboratory For Biomedical Researchmentioning

confidence: 99%

Reactor Laboratory for Biomedical Research in National Centre for Nuclear Research in Poland

Michaś

Dorosz

Wójciuk

et al. 2021

Polish Journal of Medical Physics and Engineering

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National Centre for Nuclear Research, NCBJ is one of the biggest research institutes in Poland, in which scientists deal with basic research in the various fields of subatomic physics, development of nuclear technologies and practical applications of nuclear physics methods, including those for nuclear medicine and radiotherapy. NCBJ operates the only Polish nuclear research reactor MARIA, around which a Reactor Laboratory for Biomedical Research, RLBR has been built in the last 4 years. One of the main aims of the RLBR team is to adapt the H2 channel, one of the eight MARIA’s horizontal channels, to a specific irradiation facility delivering a high flux thermal/epithermal neutron beam. The beam derived from the channel will be a tool for biological, physical and material studies for Boron Neutron Capture Therapy, BNCT. While NCBJ is focused on building a neutron research facility, the Polish scientific community expressed its interest in BNCT development and implementation as an alternative therapy for cancer treatment. Through the working group meetings organized in the form of regular scientific workshops since 2015, it led to the establishment of a national scientific consortium dedicated to BNCT. Polish Consortium for Boron Neutron Capture Therapy agreement was initially signed by twelve institutions including scientific institutes, universities and oncological centres in October 2019. National Centre for Nuclear Research was appointed the leader of the consortium. A year later the consortium was enlarged by two more institutions.

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“…These types of composites usually contain polyester resins with short glass fibers, and high amounts of filler, such as calcium carbonate or the fire retardant alumina trihydrate [4] . The inorganic fillers are added in order to reduce the product cost [5,6] , whereas glass fibers improve the mechanical properties. Thermosetting polymers are cross linked and cannot be remolded, therefore, a range of applications have been investigated for recyclates.…”

Section: Introductionmentioning

confidence: 99%

Morphology and thermomechanical properties of epoxy composites highly filled with waste bulk molding compounds (BMC)

Matykiewicz

Barczewski

Sterzyński

2015

Journal of Polymer Engineering

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Abstract The aim of this study was to produce epoxy composites highly filled with waste bulk molding compounds (BMC). The used amount of filler ranged from 30 wt% to 60 wt%. The influence of BMC on the epoxy resin curing process was monitored with the differential scanning calorimetry (DSC) method. Fourier transform infrared (FTIR) spectroscopy was used to evaluate the chemical structure of composites. The mechanical and thermal properties were examined by means of dynamic mechanical thermal analysis (DMTA), the Charpy method and the Shore D test. The fracture surface morphology of composites was observed with scanning electron microscopy (SEM). The storage modulus G′ of the epoxy composites with BMC was higher than the reference epoxy sample and significantly dependent on filler content. All investigated materials showed similar values of hardness, but at the same time low values of impact strength. Therefore, obtained composites can be used as low cost coating materials.

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A ring-shaped recombination chamber for hadron therapy dosimetry

Cited by 3 publications

References 17 publications

Ambient dose equivalent measurements in secondary radiation fields at proton therapy facility CCB IFJ PAN in Krakow using recombination chambers

Ambient dose equivalent measurements in secondary radiation fields at proton therapy facility CCB IFJ PAN in Krakow using recombination chambers

Reactor Laboratory for Biomedical Research in National Centre for Nuclear Research in Poland

Morphology and thermomechanical properties of epoxy composites highly filled with waste bulk molding compounds (BMC)

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