Neutronová radiografie s izotropním osvětlením difúzním zdrojem

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F05%3A15118128" target="_blank" >RIV/68407700:21670/05:15118128 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Neutron Radiography with Isotropic Illumination by Diffuse Source

Popis výsledku v původním jazyce

The idea of the article is to use an isotropic illumination of a sample by thermal neutrons instead of a collimated beam for imaging purposes. The inspected object is placed to an isotropic field of slow neutrons and observed by a pinhole camera with animaging neutron detector. A fraction of neutrons scattered inside of the inspected sample can pass through the pinhole and reach the detector. The regions with larger cross-section for neutron scattering are highlighted in the acquired images. A compactexperimental system has been designed. The system consists of a semiconductor pixel detector Medipix2 (14 x 14 mm, 256 x 256 pixels) adapted for neutron detection, a pinhole collimator and a sample holder. The entire system is placed inside a waterproofbox. The neutron shielding was optimized using Monte-Carlo simulations. The first experimental results measured in the active zone of the research nuclear reactor LR-0 at Nuclear Research Institute in Rez near Prague are presented.

Název v anglickém jazyce

Neutron Radiography with Isotropic Illumination by Diffuse Source

Popis výsledku anglicky

The idea of the article is to use an isotropic illumination of a sample by thermal neutrons instead of a collimated beam for imaging purposes. The inspected object is placed to an isotropic field of slow neutrons and observed by a pinhole camera with animaging neutron detector. A fraction of neutrons scattered inside of the inspected sample can pass through the pinhole and reach the detector. The regions with larger cross-section for neutron scattering are highlighted in the acquired images. A compactexperimental system has been designed. The system consists of a semiconductor pixel detector Medipix2 (14 x 14 mm, 256 x 256 pixels) adapted for neutron detection, a pinhole collimator and a sample holder. The entire system is placed inside a waterproofbox. The neutron shielding was optimized using Monte-Carlo simulations. The first experimental results measured in the active zone of the research nuclear reactor LR-0 at Nuclear Research Institute in Rez near Prague are presented.

Druh

A - Audiovizuální tvorba

CEP obor

BG - Jaderná, atomová a molekulová fyzika, urychlovače

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2005

Kód důvěrnosti údajů

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

ISBN

0-7803-9222-1

Místo vydání

New Jersey

Název nakladatele resp. objednatele

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Verze

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Identifikační číslo nosiče

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