Investigating the Influence of Combination of Magnetic Field and Various Atmosphere Conditions on LIBS Signal Enhancement

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F16%3A00089399" target="_blank" >RIV/00216224:14740/16:00089399 - 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

Investigating the Influence of Combination of Magnetic Field and Various Atmosphere Conditions on LIBS Signal Enhancement

Popis výsledku v původním jazyce

Laser-induced breakdown spectroscopy (LIBS) is a method with great potential in numerous applications and with the capability to detect broad spectrum of elements. Despite the improvement in instrumentation, it still lacks the appropriate sensitivity for some elements, such as detection of halogens. One of the possibilities how to improve the limits of detection is using reduced ambient pressure atmosphere. Consequently, allowing the species to be easily excited and then to emit characteristic radiation. However, using low-pressure ambient atmosphere leads to fast expansion of plasma contributing to lower plasma temperature and electron density. In this work we propose the utilization of magnetic field in order to confine the plasma plume and thus to increase the plasma temperature, electron density resulting to the detected signal. One of the studied parameters was a plasma size for different combinations of ambient pressures and magnetic fields.

Název v anglickém jazyce

Investigating the Influence of Combination of Magnetic Field and Various Atmosphere Conditions on LIBS Signal Enhancement

Popis výsledku anglicky

Laser-induced breakdown spectroscopy (LIBS) is a method with great potential in numerous applications and with the capability to detect broad spectrum of elements. Despite the improvement in instrumentation, it still lacks the appropriate sensitivity for some elements, such as detection of halogens. One of the possibilities how to improve the limits of detection is using reduced ambient pressure atmosphere. Consequently, allowing the species to be easily excited and then to emit characteristic radiation. However, using low-pressure ambient atmosphere leads to fast expansion of plasma contributing to lower plasma temperature and electron density. In this work we propose the utilization of magnetic field in order to confine the plasma plume and thus to increase the plasma temperature, electron density resulting to the detected signal. One of the studied parameters was a plasma size for different combinations of ambient pressures and magnetic fields.

Druh

O - Ostatní výsledky

CEP obor

CB - Analytická chemie, separace

OECD FORD obor

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Projekt

<a href="/cs/project/ED1.1.00%2F02.0068" target="_blank" >ED1.1.00/02.0068: CEITEC - central european institute of technology</a><br>

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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