Ion optics of the LAMAS-10 laser time-of-flight mass spectrometer

Bychik, K. G.; Voloshko, A.; Sil’nikov, E. E.; Сысоев, А. А.

doi:10.1134/s1061934811140048

Cited by 6 publications

(6 citation statements)

References 5 publications

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“…Today's computers also allow for data acquisition, storage and processing at a speed that was impossible to reach when the first LIMS instruments were commercialised. Some academic groups 14,[35][36][37][38] and companies 39 continued to push the limits of the LIMS technique, often as prototypes for space borne instruments [39][40][41][42][43] .…”

Section: Current State Of the Artmentioning

confidence: 99%

“…Several groups reported on instruments using electrostatic sector fields to extend the time of flight and focus ions in space and time. Instruments with remarkable S-Oand 8-shaped geometries were built and, for example, successfully employed for the characterisation of aerosol particles 36,[59][60][61] . Recently, Sysoev proposed a wedge-shaped ion mirror for focussing ions from laser ablation without prior acceleration 62 .Despite the large efforts, none of the mentioned instruments featured sufficient resolving power for baseline resolution of isobars.…”

Section: Mass Resolution and Reduction Of Isobaric Interferencesmentioning

confidence: 99%

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The LMS-GT instrument – a new perspective for quantification with the LIMS-TOF measurement technique

Wiesendanger

Grimaudo

Tulej

et al. 2019

J. Anal. At. Spectrom.

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Section: Current State Of the Artmentioning

confidence: 99%

Section: Mass Resolution and Reduction Of Isobaric Interferencesmentioning

confidence: 99%

The LMS-GT instrument – a new perspective for quantification with the LIMS-TOF measurement technique

Wiesendanger

Grimaudo

Tulej

et al. 2019

J. Anal. At. Spectrom.

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“…To avoid such substantial resolution loss, a method which can be used to correct the aberration related to ion motion in plasma drift space has been proposed. 4 The idea of the method is to compensate for the aberrations with inverse aberrations of the same magnitude, occurring in the analyzer. It was shown that this approach can provide a resolution of ~1300 for a laser time-offlight mass spectrometer.…”

Section: Introductionmentioning

confidence: 99%

“…The final value of the resolving power limit is R a = 23020. For the selected geometric parameters of the analyzer and the restriction of the resolution because of the laser source described above, the total resolution of the mass spectrometer can be calculated from (4).…”

mentioning

confidence: 99%

Letter: The Formation of Ion Packages with Ultrashort Duration in a Laser Ion Source

Сысоев

Карпов

Gracheva

2015

Eur J Mass Spectrom (Chichester)

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A new approach to the formation of ultrashort laser ion packages in the ion source of time-of-flight (TOF) mass spectrometer for elemental analysis is described. This is achieved by installing a wedge-shaped reflector with special correcting plates. The reflector provides time and space focusing of the ion packages. Such time focusing allows to reduce the ion package duration up to 1 ns. The proposed approach allows more than order of magnitude increase in the resolution of the laser TOF mass spectrometer with an axially symmetric electrostatic analyzer to 10,000-13,000. In this Letter the theoretical calculations justifying the proposed method are presented.

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“…12 Robust measurements of uranium isotopes by RIMS using pulsed solid-state lasers have recently been demonstrated on uranium-oxide standards with minimal sample preparation. 13 Laser ionization time-of-flight mass spectrometry [14][15][16][17] also can be considered as a potential candidate for a method of uranium and thorium identification in solid titanium.…”

Section: Introductionmentioning

confidence: 99%

Determination of Traces of Uranium and Thorium in Titanium and Copper Used for the Construction of the Russian Emission Detector 100 by Inductively Coupled Plasma Mass Spectrometry

Poteshin

Сысоев

Lagunov

et al. 2015

Eur J Mass Spectrom (Chichester)

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The Russian Emission Detector 100 (RED-100) under construction at the National Research Nuclear University MEPhI (Moscow Engineering Physics Institute) is designed to detect the presently undiscovered effect of coherent neutrino scattering. One of the factors limiting the sensitivity of the detector is the spontaneous decay of uranium and thorium in the detector materials. Radioactive impurities in detector materials at levels of parts per billion can significantly affect the sensitivity. Five random samples of titanium and one of copper from materials used in the construction of the detector were selected for assay. The concentration of (232)Th and (238)U were measured by inductively coupled plasma mass spectrometry (ICP- MS) in solid titanium using both: solutions in acids and direct sampling by laser ablation (LA-ICP-MS). The LA- ICP-MS method allowed us to determine (238)U and (232)Th at subnanogram per gram levels. This method is much faster than ICP-MS with liquid injection. The titanium samples studied have impurities in the range between 1 ng g(-1) and 21 ng g(-1) for (238)U and 3 ng g(-1) and 31 ng g(-1) for (232)Th. In copper we set upper limits of 0.4 ng g(-1) for (238)U and 1 ng g(-1)for (232)Th. The total activity of the cryostat constructed from materials studied was estimated to be 43 Bq.

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Ion optics of the LAMAS-10 laser time-of-flight mass spectrometer

Cited by 6 publications

References 5 publications

The LMS-GT instrument – a new perspective for quantification with the LIMS-TOF measurement technique

The LMS-GT instrument – a new perspective for quantification with the LIMS-TOF measurement technique

Letter: The Formation of Ion Packages with Ultrashort Duration in a Laser Ion Source

Determination of Traces of Uranium and Thorium in Titanium and Copper Used for the Construction of the Russian Emission Detector 100 by Inductively Coupled Plasma Mass Spectrometry

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