A new method to deconvolute binary mixture in LA-ICP-MS analyses to quantify the composition of phases smaller than the laser spot size

2018 ◽  
Vol 33 (9) ◽  
pp. 1518-1528 ◽  
Author(s):  
Longbo Yang ◽  
Vincent J. van Hinsberg ◽  
Iain M. Samson
Keyword(s):  
Laser Ablation ◽  
Binary Mixture ◽  
Spot Size ◽  
New Method ◽  
Laser Spot ◽  
Laser Spot Size ◽  
Ms Analysis ◽  
Icp Ms ◽  
Data Signal

New quantification strategy to deconvolute the data signal of a binary mixture in laser ablation ICP-MS analysis.

Laser Spot Size and Preheating Effects on Alumina Reduction Using Laser Ablation

2020 ◽  
Vol 34 (4) ◽  
pp. 733-740
Author(s):  
Seiya Tanaka ◽  
Shin Yamada ◽  
Kimiya Komurasaki ◽  
Hiroyuki Koizumi
Keyword(s):  
Laser Ablation ◽  
Spot Size ◽  
Laser Spot ◽  
Laser Spot Size

Modelling of the laser spot size dependence of retinal thermal damage

2005 ◽  
Author(s):  
Karl Schulmeister ◽  
Bernhard Seiser ◽  
Florian Edthofer ◽  
David J. Lund
Keyword(s):  
Size Dependence ◽  
Thermal Damage ◽  
Spot Size ◽  
Laser Spot ◽  
Laser Spot Size

scholarly journals Quantitative Determination of the Surface Distribution of Supported Metal Nanoparticles: A Laser Ablation–ICP–MS Based Approach

Chemosensors ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 77
Author(s):  
Davide Spanu ◽  
Gilberto Binda ◽  
Marcello Marelli ◽  
Laura Rampazzi ◽  
Sandro Recchia ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Laser Ablation ◽  
Quantitative Determination ◽  
Metal Nanoparticles ◽  
Total Mass ◽  
Functional Materials ◽  
Metal Extraction ◽  
Ms Analysis ◽  
Icp Ms

A laser ablation–inductively coupled plasma–mass spectrometry (LA–ICP–MS) based method is proposed for the quantitative determination of the spatial distribution of metal nanoparticles (NPs) supported on planar substrates. The surface is sampled using tailored ablation patterns and the data are used to define three-dimensional functions describing the spatial distribution of NPs. The volume integrals of such interpolated surfaces are calibrated to obtain the mass distribution of Ag NPs by correlation with the total mass of metal as determined by metal extraction and ICP–MS analysis. Once this mass calibration is carried out on a sacrificial sample, quantifications can be performed over multiple samples by a simple micro-destructive LA–ICP–MS analysis without requiring the extraction/dissolution of metal NPs. The proposed approach is here tested using a model sample consisting of a low-density polyethylene (LDPE) disk decorated with silver NPs, achieving high spatial resolution over cm2-sized samples and very high sensitivity. The developed method is accordingly a useful analytical tool for applications requiring both the total mass and the spatial distribution of metal NPs to be determined without damaging the sample surface (e.g., composite functional materials and NPs, decorated catalysts or electrodic materials).

scholarly journals Long lifetime of bialkali photocathodes operating in high gradient superconducting radio frequency gun

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
E. Wang ◽  
V. N. Litvinenko ◽  
I. Pinayev ◽  
M. Gaowei ◽  
J. Skaritka ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Electron Beams ◽  
Spot Size ◽  
Laser Spot ◽  
Laser Spot Size ◽  
High Quantum Efficiency ◽  
High Brightness ◽  
High Charge ◽  
Superconducting Radio Frequency ◽  
Long Lifetime

AbstractHigh brightness, high charge electron beams are critical for a number of advanced accelerator applications. The initial emittance of the electron beam, which is determined by the mean transverse energy (MTE) and laser spot size, is one of the most important parameters determining the beam quality. The bialkali photocathodes illuminated by a visible laser have the advantages of high quantum efficiency (QE) and low MTE. Furthermore, Superconducting Radio Frequency (SRF) guns can operate in the continuous wave (CW) mode at high accelerating gradients, e.g. with significant reduction of the laser spot size at the photocathode. Combining the bialkali photocathode with the SRF gun enables generation of high charge, high brightness, and possibly high average current electron beams. However, integrating the high QE semiconductor photocathode into the SRF guns has been challenging. In this article, we report on the development of bialkali photocathodes for successful operation in the SRF gun with months-long lifetime while delivering CW beams with nano-coulomb charge per bunch. This achievement opens a new era for high charge, high brightness CW electron beams.

scholarly journals Matrix effects during laser ablation MC ICP-MS analysis of boron isotopes in tourmaline

2014 ◽  
Vol 29 (5) ◽  
pp. 903 ◽  
Author(s):  
Jitka Míková ◽  
Jan Košler ◽  
Michael Wiedenbeck
Keyword(s):  
Laser Ablation ◽  
Matrix Effects ◽  
Boron Isotopes ◽  
Ms Analysis ◽  
Icp Ms

Laser spot size and scaling laws for laser beam additive manufacturing

2022 ◽  
Vol 73 ◽  
pp. 26-39
Author(s):  
Jordan S. Weaver ◽  
Jarred C. Heigel ◽  
Brandon M. Lane
Keyword(s):  
Additive Manufacturing ◽  
Laser Beam ◽  
Scaling Laws ◽  
Spot Size ◽  
Laser Spot ◽  
Laser Spot Size

Two age populations of zircons from the Timber Creek kimberlites, Northern Territory, as determined by laser-ablation ICP-MS analysis

2001 ◽  
Vol 48 (5) ◽  
pp. 757 ◽  
Author(s):  
E. A. Belousova ◽  
W. L. Griffin ◽  
S. R. Shee ◽  
S. E. Jackson ◽  
S. Y. O'Reilly
Keyword(s):  
Laser Ablation ◽  
Northern Territory ◽  
Ms Analysis ◽  
Icp Ms
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