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dc.contributor.author
Figueroa, R. G.
dc.contributor.author
Santibáñez, M.
dc.contributor.author
Valente, Mauro Andres
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dc.date.available
2023-01-30T19:46:40Z
dc.date.issued
2016-12
dc.identifier.citation
Figueroa, R. G.; Santibáñez, M.; Valente, Mauro Andres; Dosimetric and bremsstrahlung performance of a single convergent beam for teletherapy device; Elsevier; Physica Medica; 32; 12; 12-2016; 1489-1494
dc.identifier.issn
1120-1797
dc.identifier.uri
http://hdl.handle.net/11336/186198
dc.description.abstract
The present work investigates preliminary feasibility and characteristics of a new type of radiation therapy modality based on a single convergent beam of photons. The proposal consists of the design of a device capable of generating convergent X-ray beams useful for radiotherapy. The main goal is to achieve high concentrated dose delivery. The first step is an analytical approach in order to characterize the dosimetric performance of the hypothetical convergent photon beam. Then, the validated FLUKA Monte Carlo main code is used to perform complete radiation transport to account also for scattering effects. The proposed method for producing convergent X-rays is mainly based on the bremsstrahlung effect. Hence the operating principle of the proposed device is described in terms of bremsstrahlung production. The work is mainly devoted characterizing the effect on the bremsstrahlung yield due to accessories present in the device, like anode material and geometry, filtration and collimation systems among others. The results obtained for in-depth dose distributions, by means of analytical and stochastic approaches, confirm the presence of a high dose concentration around the irradiated target, as expected. Moreover, it is shown how this spot of high dose concentration depends upon the relevant physical properties of the produced convergent photon beam. In summary, the proposed design for producing single convergent X-rays attained satisfactory performance for achieving high dose concentration around small targets depending on beam spot size that may be used for some applications in radiotherapy, like radiosurgery.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CONVERGENT BEAM RADIOTHERAPY (CBRT)
dc.subject
DOSIMETRY
dc.subject
MONTE CARLO SIMULATIONS
dc.subject.classification
Otras Ciencias Físicas
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Dosimetric and bremsstrahlung performance of a single convergent beam for teletherapy device
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-01-27T16:36:33Z
dc.journal.volume
32
dc.journal.number
12
dc.journal.pagination
1489-1494
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Figueroa, R. G.. Universidad de La Frontera; Chile
dc.description.fil
Fil: Santibáñez, M.. Universidad de La Frontera; Chile
dc.description.fil
Fil: Valente, Mauro Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Universidad de La Frontera; Chile
dc.journal.title
Physica Medica
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1120179716309474
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.ejmp.2016.10.003
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