RESONANCE CELL DESIGN FOR GAS-PHASE PHOTOACOUSTIC-SPECTROSCOPY

Authors
SCHATTKA BJ GOUGH KM
Citation
Bj. Schattka et Km. Gough, RESONANCE CELL DESIGN FOR GAS-PHASE PHOTOACOUSTIC-SPECTROSCOPY, CANADIAN JOURNAL OF ANALYTICAL SCIENCES AND SPECTROSCOPY, 42(2), 1997, pp. 35-40
Citations number
28
Categorie Soggetti
Spectroscopy,"Chemistry Analytical
Journal title
CANADIAN JOURNAL OF ANALYTICAL SCIENCES AND SPECTROSCOPY → ACNP
ISSN journal
12056685
Volume
42
Issue
2
Year of publication
1997
Pages
35 - 40
Database
ISI
SICI code
1205-6685(1997)42:2<35:RCDFGP>2.0.ZU;2-E
Abstract
Photoacoustic intracavity cell designs and characteristics, and the re lative merits of resonant versus nonresonant cells are discussed. Sign al enhancement with a novel cell design which halves the chopping freq uency required to achieve longitudinal resonance has been examined. Re sults are presented that illustrate the dependence of the photoacousti c signal on cell pressure in the range of 50 to 700 Torr: In contrast to non-resonant cells, linear dependence of signal on pressure was obs erved with the resonant cell.