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The filter/moderator arrangement-optimisation for the boron-neutron capture therapy (BNCT)

Authors: G, Tracz; L, Dabkowski; D, Dworak; K, Pytel; U, Woźnicka;

The filter/moderator arrangement-optimisation for the boron-neutron capture therapy (BNCT)

Abstract

The paper presents results of the numerical modelling of the fission-converter-based epithermal neutron source designed for the boron neutron capture therapy (BNCT) facility to be located at the Polish research nuclear reactor MARIA at Swierk. The unique design of the fission converter has been proposed due to a specific geometrical surrounding of the reactor. The filter/moderator arrangement has been optimised to moderate fission neutrons to epithermal energies and to remove both fast neutrons and photons from the therapeutic beam. The selected filter/moderator set-up ensures both high epithermal neutron flux and suitably low level of beam contamination. Photons originating from the reactor core are almost eliminated what is the exceptional advantage of the proposed design. It yields one order of magnitude lower gamma radiation dose than the maximum allowed dose in such a type of therapeutic facility. The MCNP code has been used for the computations.

Keywords

Neutrons, Quality Control, Reproducibility of Results, Boron Neutron Capture Therapy, Radiotherapy Dosage, Equipment Design, Models, Theoretical, Risk Assessment, Sensitivity and Specificity, Equipment Failure Analysis, Risk Factors, Computer-Aided Design, Humans, Scattering, Radiation, Computer Simulation, Linear Energy Transfer, Radiometry, Algorithms, Relative Biological Effectiveness

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Powered by OpenAIRE graph
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
Average
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