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Statements

Subject Item
n2:RIV%2F00216305%3A26210%2F14%3APU110235%21RIV15-MSM-26210___
rdf:type
skos:Concept n15:Vysledek
rdfs:seeAlso
http://dx.doi.org/10.1063/1.4890337
dcterms:description
This contribution introduces a new type of setup for fast sample analysis using laser-induced breakdown spectroscopy (LIBS). The novel design combines a high repetition rate laser (up to 50 kHz) as excitation source and an acousto-optical modulator (AOM) as a fast switch for temporally gating the detection of the emitted light. The plasma radiation is led through the active medium of the AOM where it is diffracted on the transient ultrasonic Bragg grid. The diffracted radiation is detected by a compact Czerny-Turner spectrometer equipped with a CCD line detector. Utilizing the new combination of high repetition rate lasers and AOM gated detection, rapid measurements with total integration times of only 10 ms resulted in a limit of detection (LOD) of 0.13 wt.% for magnesium in aluminum alloys. This short integration time corresponds to 100 analyses/s. Temporal gating of LIP radiation results in improved LODs and consecutively higher sensitivity of the LIBS setup. Therefore, an AOM could be beneficially This contribution introduces a new type of setup for fast sample analysis using laser-induced breakdown spectroscopy (LIBS). The novel design combines a high repetition rate laser (up to 50 kHz) as excitation source and an acousto-optical modulator (AOM) as a fast switch for temporally gating the detection of the emitted light. The plasma radiation is led through the active medium of the AOM where it is diffracted on the transient ultrasonic Bragg grid. The diffracted radiation is detected by a compact Czerny-Turner spectrometer equipped with a CCD line detector. Utilizing the new combination of high repetition rate lasers and AOM gated detection, rapid measurements with total integration times of only 10 ms resulted in a limit of detection (LOD) of 0.13 wt.% for magnesium in aluminum alloys. This short integration time corresponds to 100 analyses/s. Temporal gating of LIP radiation results in improved LODs and consecutively higher sensitivity of the LIBS setup. Therefore, an AOM could be beneficially
dcterms:title
High repetition rate laser-induced breakdown spectroscopy using acousto-optically gated detection High repetition rate laser-induced breakdown spectroscopy using acousto-optically gated detection
skos:prefLabel
High repetition rate laser-induced breakdown spectroscopy using acousto-optically gated detection High repetition rate laser-induced breakdown spectroscopy using acousto-optically gated detection
skos:notation
RIV/00216305:26210/14:PU110235!RIV15-MSM-26210___
n3:aktivita
n17:S
n3:aktivity
S
n3:cisloPeriodika
073104
n3:dodaniDat
n12:2015
n3:domaciTvurceVysledku
n10:2226162 n10:6620477
n3:druhVysledku
n14:J
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n9:predkladatel
n3:idSjednocenehoVysledku
19089
n3:idVysledku
RIV/00216305:26210/14:PU110235
n3:jazykVysledku
n7:eng
n3:klicovaSlova
laser-induced breakdown spectroecopy, LIBS, acousto-optically gated detector, repetiton rate
n3:klicoveSlovo
n6:LIBS n6:repetiton%20rate n6:acousto-optically%20gated%20detector n6:laser-induced%20breakdown%20spectroecopy
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[9E8B2751E067]
n3:nazevZdroje
Review of Scientific Instruments
n3:obor
n16:BL
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
6
n3:rokUplatneniVysledku
n12:2014
n3:svazekPeriodika
85
n3:tvurceVysledku
Kaiser, Jozef Pořízka, Pavel
s:issn
0034-6748
s:numberOfPages
8
n8:organizacniJednotka
26210