AN AUTOFOCUS SYSTEM FOR REPRODUCIBLE FOCUSING IN LASER-ABLATION INDUCTIVELY-COUPLED PLASMA-MASS SPECTROMETRY

被引：8

作者：

COUSIN, H

WEBER, A

MAGYAR, B

ABELL, I

GUNTHER, D

机构：

[1] FI ELEMENTAL ANAL,WINDSFORD,CHESHIRE,ENGLAND

[2] INST BIOCHEM PFLANZEN,D-06108 HALLE,GERMANY

来源：

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY | 1995年 / 50卷 / 01期

关键词：

D O I：

10.1016/0584-8547(94)00094-C

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

A method of controlling the focus position of the ablating laser was evaluated. This system consists of a displacement measuring unit based on the triangulation displacement measurement principle. A simple preliminary experimental setup with a light source (LED, light emitting diode) and a displacement sensor (PSD, position sensing detector) with optics and a electronic circuit, resulted in a reproducibility of a given lateral position of +/-5 mu m. A fine-tuning of the components, as well as the use of a laser diode as a light source wilt certainty improve this value.

引用

页码：63 / 66

页数：4