Temperature Dependence of Polymer-Gel Dosimeter Nuclear Magnetic Resonance Response

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F01%3A04068343" target="_blank" >RIV/68407700:21340/01:04068343 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21340/01:04145047

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Temperature Dependence of Polymer-Gel Dosimeter Nuclear Magnetic Resonance Response

Original language description

The purpose of this study was to create mathematical model which would be capable to correct polymer-gel dosimeter relaxation rate R2 response for different temperatures during NMR evaluation. In this study four different modifications of BANG-2 polymer-gel dosimeter were used to evaluate the effect of different polymer-gel dosimeter composition on NMR response for different temperatures. Samples with polymer-gel dosimeter in glass test vessels were homogeneously irradiated by 60Co gamma photons. Multi-echo sequence with 16 equidistant echoes was used for evaluation of irradiated polymer-gel dosimeters. The parameters of used sequence were as follows: TR 2000 ms, TE 22.5 - 360.0 ms, slice thickness 5 mm, FOV 255 mm. Proposed model suggests to subtractR2 response of nonirradiated dosimeter from the total R2 response. Relaxation rate can be expressed as a function of temperature and dose. Temperature dependence has exponential behavior. Proposed model allows to correct measured NMR R2

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BG - Nuclear, atomic and molecular physics, accelerators

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2001

Confidentiality

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

Name of the periodical

Medical Physics

ISSN

0094-2405

e-ISSN

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Volume of the periodical

28

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

9

Pages from-to

2370-2378

UT code for WoS article

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EID of the result in the Scopus database

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