Global to push GA events into
skip to main content

Title: Ion cyclotron resonance cell

An ion cyclotron resonance cell having two adjacent sections separated by a center trapping plate. The first section is defined by the center trapping plate, a first end trapping plate, and excitation and detector electrodes. The second section includes a second end trapping plate spaced apart from the center plate, a mirror, and an analyzer. The analyzer includes a wavelength-selective light detector, such as a detector incorporating an acousto-optical device (AOD) and a photodetector. One or more ion guides, grounded plates with holes for the ion beam, are positioned within the vacuum chamber of the mass spectrometer between the ion source and the cell. After ions are trapped and analyzed by ion cyclotron resonance techniques in the first section, the ions of interest are selected according to their mass and passed into the second section for optical spectroscopic studies. The trapped ions are excited by light from a laser and caused thereby to fluoresce. The fluorescent light emitted by the excited ions is reflected by the mirror and directed onto the detector. The AOD is scanned, and the photodetector output is recorded and analyzed. The ions remain in the second section for an extended period, enabling multiple studies to bemore » carried out on the same ensemble of ions.« less
Inventors:
 [1]
  1. (Aiken, SC)
Issue Date:
OSTI Identifier:
869750
Assignee:
United States of America as represented by United States (Washington, DC) SRS
Patent Number(s):
US 5389784
Contract Number:
AC09-89SR18035
Research Org:
WESTINGHOUSE SAVANNAH RIVER CO
Country of Publication:
United States
Language:
English
Subject:
cyclotron; resonance; cell; adjacent; sections; separated; center; trapping; plate; section; defined; excitation; detector; electrodes; spaced; apart; mirror; analyzer; wavelength-selective; light; incorporating; acousto-optical; device; aod; photodetector; guides; grounded; plates; holes; beam; positioned; vacuum; chamber; mass; spectrometer; source; trapped; analyzed; techniques; selected; according; passed; optical; spectroscopic; studies; excited; laser; caused; fluoresce; fluorescent; emitted; reflected; directed; scanned; output; recorded; remain; extended; period; enabling; multiple; carried; ensemble; detector output; fluorescent light; mass spectrometer; vacuum chamber; spaced apart; cyclotron resonance; light emitted; optical device; light detector; extended period; resonance techniques; spectroscopic studies; plate spaced; trapping plate; adjacent section; adjacent sections; sections separated; resonance cell; center trapping; detector electrode; /250/

Similar records in DOepatents and OSTI.GOV collections: