A new micro-DIGE set-up for the analysis of light elements

Gusztáv Á Szíki, Imre Uzonyi, Erik Dobos, István Rajta, Katalin T. Biró, Sándor A. Nagy, Árpád Kiss

Research output: Contribution to journalConference article

5 Citations (Scopus)

Abstract

The present work shows a relatively simple and inexpensive way of converting the sample chamber of a conventional OM type microprobe into an easily useable micro-DIGE set-up. The basic idea of the set-up is to increase the image distance of the microprobe by moving the focus out of the sample chamber into an extension tube, which is connected to the 0° port of the chamber. This new position of the focus, and so the sample, enables the use of different type of γ-ray detectors in enlarged solid angles increasing the sensitivity of the technique. The degradation of the lateral resolution of the system as a consequence of the increased image distance was theoretically and experimentally investigated. The measured geometric spot size was 15 × 17 μm2. Archaeological and ecological applications of the new set-up are also presented here.

Original languageEnglish
Pages (from-to)508-513
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume219-220
Issue number1-4
DOIs
Publication statusPublished - Jun 1 2004
EventProceedings of the Sixteenth International Conference on Ion - Albuquerque, NM., United States
Duration: Jun 29 2003Jul 4 2003

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Keywords

  • DIGE
  • Light elements
  • New set-up
  • Oxford microprobe

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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