LET spectra behind high-density titanium and stainless steel hip implants irradiated with a therapeutic proton beam

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F18%3A00488757" target="_blank" >RIV/61389005:_____/18:00488757 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.radmeas.2018.01.003" target="_blank" >http://dx.doi.org/10.1016/j.radmeas.2018.01.003</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.radmeas.2018.01.003" target="_blank" >10.1016/j.radmeas.2018.01.003</a>

Result language

angličtina

Original language name

LET spectra behind high-density titanium and stainless steel hip implants irradiated with a therapeutic proton beam

Original language description

A well-known shortcoming of radiotherapy is the lack of information regarding the effect that metallic implants, located near the area of interest, have on the dose distribution in the target volume. In this work, a scanned proton pencil beam was applied to hip implant phantoms to evaluate Linear Energy Transfer (LET) and to study the secondary particles produced close to the implant. Using two different materials that are in standard use in hip implant production worldwide, phantoms with thicknesses of 2, 5, 10, 15, and 20 mm were manufactured. The first phantom type consists of a titanium (Ti) alloy, while the second is composed of a stainless steel (SS) alloy. Both phantoms were irradiated at various energies. Solid - state nuclear track etched detectors (TEDs) have been used to determine LET spectra of primary protons and secondary particles, both behind the implants and near their edges. The results indicate that LET spectra behind particular materials of different thicknesses do not differ from qualitative point of view. When we compared LET spectra of Ti and SS materials of the same thickness, more particles with LET, below 20 keV/mu m, were detected behind the SS phantom. At the border of a phantom made from 20 mm metallic alloy, there was an accumulation of tracks, resulting from the scattering of the protons in the material. The dosimetric information, obtained in the experimental study, can be further applied either for benchmarking treatment planning systems or for biological dose calculations.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10304 - Nuclear physics

Project

<a href="/en/project/EF16_013%2F0001677" target="_blank" >EF16_013/0001677: Facility for Antiproton and Ion Research - participation of the Czech Republic - OP</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Radiation Measurements

ISSN

1350-4487

e-ISSN

—

Volume of the periodical

110

Issue of the periodical within the volume

3

Country of publishing house

GB - UNITED KINGDOM

Number of pages

7

Pages from-to

7-13

UT code for WoS article

000427210700002

EID of the result in the Scopus database

2-s2.0-85041423042