Application of recombination chambers for determination of neutron ambient dose equivalent at the door to the maze of linear accelerator vault

Jakubowska, Edyta; Golnik, N.; Gryziński, M.; Tulik, Piotr

doi:10.2478/v10013-011-0015-2

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…Such specific measurements are of interest not only for EBRT but also for hadron therapy (e.g. ion therapy and boron-neutron capture therapy) [15,16,[29][30][31].…”

Section: Resultsmentioning

confidence: 99%

A dosimetric comparison of 3D-CRT, IMRT and IMAT treatment techniques — assessment from radiation protection point of view

Tulik,

Maciak,

Tulik

2024

Rep Pract Oncol Radiother.

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Background:The purpose was to assess the impact of irradiation technique type and beam energy on the mixed radiation field around the medical linear accelerator (linac) in terms of radiation quality and related radiation protection quantities. Materials and methods:Seven radiotherapeutic plans with Alderson-Rando anthropomorphic phantom [different techniques: conventional three-dimensional conformal radiotherapy (3D-CRT), intensity-modulated radiotherapy (IMRT) and intensity modulated arc therapy (IMAT), different beams: 6 MV or 18 MV, and their arrangements) were prepared for the case of prostate malignancy. Recombination chambers REM-2 and GW2 were positioned on the treatment couch 100 cm from the beam axis at the height of the isocentre. Recombination chambers REM-2 and GW2 were used for recombination index of radiation quality Q 4 determination, measurement of total tissue dose D t and calculation of gamma and neutron components to D t . Estimation of D t and Q 4 allowed for the ambient dose equivalent H*(10) calculations for each plan.Results: For plans prepared with 6 MV beams, Q 4 values within the limits of uncertainty were equal to one, which confirms the correctness of the measurement method. For plans implemented with 18 MV beams, the value of Q 4 was in the range of 3.7-5.7. Comparison between treatment techniques indicates that the lowest exposure resulting from out-of-field doses comes from 6 MV IMAT (0.7 mSv), whereas the highest one is from 18 MV IMRT (55.1 mSv). Conclusion:With the recombination chambers technique it was confirmed that the choice of beam energy directly affects the generation of photoneutrons. The treatment plan technique can have a significant impact on the out-of-field dose.

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“…Such specific measurements are of interest not only for EBRT but also for hadron therapy (e.g. ion therapy and boron-neutron capture therapy) [15,16,[29][30][31].…”

Section: Resultsmentioning

confidence: 99%

A dosimetric comparison of 3D-CRT, IMRT and IMAT treatment techniques — assessment from radiation protection point of view

Tulik,

Maciak,

Tulik

2024

Rep Pract Oncol Radiother.

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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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Application of recombination chambers for determination of neutron ambient dose equivalent at the door to the maze of linear accelerator vault

Cited by 2 publications

References 5 publications

A dosimetric comparison of 3D-CRT, IMRT and IMAT treatment techniques — assessment from radiation protection point of view

A dosimetric comparison of 3D-CRT, IMRT and IMAT treatment techniques — assessment from radiation protection point of view

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

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