Patent · US Active

Laser ablation cell

US10319576B2 · kind B2 · utility

1Cited by

6References

20Claims

0Family size

Assignees

ETH ZËRICH · CH
Paul Scherrer Institut · CH

Inventors

Detlef Günther · Zürich, CH
Daniel Grolimund · Zuchwil, CH
Hao Wang · Gatineau, CA

Key dates

Filing date	Oct 27, 2016
Grant date	Jun 11, 2019
Priority date	—
Expiry date	Oct 27, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH01J49/40
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A laser ablation cell (1) comprises a flow channel (11) having an essentially constant cross-sectional area so as to ensure a strictly laminar flow in the flow channel. A sample chamber (21) is provided adjacent to a lateral opening (14) of the flow channel. A laser beam (41) enters the sample chamber (21) through a lateral window (16) and impinges on a surface (24) of a sample (23) to ablate material from the sample. The sample may be positioned in such a distance from the flow channel that the laser-generated aerosol mass distribution has its center within the flow channel. This leads to short aerosol washout times. The laser ablation cell is particularly well suited for aerosol generation in inductively coupled plasma mass spectrometry (ICPMS), including imaging applications.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.