TITLE

Resonant photoacoustic cell for pulsed laser analysis of gases at high temperature

AUTHOR(S)
Sorvajärvi, Tapio; Manninen, Albert; Toivonen, Juha; Saarela, Jaakko; Hernberg, Rolf
PUB. DATE
December 2009
SOURCE
Review of Scientific Instruments;Dec2009, Vol. 80 Issue 12, p123103
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A new approach to high temperature gas analysis by means of photoacoustic (PA) spectroscopy is presented. The transverse modes of the resonant PA cell were excited with a pulsed laser and detected with a microphone. Changes in the properties of the PA cell resulting from a varying temperature are discussed and considered when processing the PA signal. The feasibility of the proposed method was demonstrated by studying PA response from saturated vapor of potassium chloride (KCl) in the temperature range extending from 410 to 691 °C. The PA spectrum, the detection limit, and the signal saturation of KCl vapor are discussed. At 245 nm excitation wavelength and 300 μJ pulse energy, the achieved detection limit for KCl is 15 ppb.
ACCESSION #
47244392

 

Related Articles

  • Preparation of ultrathin free-standing targets for (e,2e) spectroscopy. Fang, Z.; Guo, X.; Utteridge, S.; Canney, S.A.; McCarthy, I.E; Vos, M.; Weigold, E. // Review of Scientific Instruments;Dec1997, Vol. 68 Issue 12, p4396 

    Describes the procedures used for the preparation of ultrathin free-standing membranes for spectroscopy. Importance of the development of radio frequency plasma source; Importance of a conducting sublayer in avoiding charging problem; description of a well prepared target.

  • Absolute spectral sensitivity of linear-photodiode arrays in 7–20 keV energy x-ray range. Dolbnya, I. P.; Kurylo, S. G. // Review of Scientific Instruments;Jan1992, Vol. 63 Issue 1, p677 

    This paper deals with the study of the absolute spectral sensitivity of linear photodiode arrays (of LF1024-25/2 type) as x-ray one-coordinate detectors within the 7-20 keV energy range. The threshold sensitivity of such detectors was estimated in the indicated range. The measurements were made...

  • The parallel cylindrical mirror electron energy analyzer. Read, Frank H. // Review of Scientific Instruments;Mar2002, Vol. 73 Issue 3, p1129 

    An electrostatic energy analyzer is described that allows parallel acquisition of the energy spectrum of charged particles over a wide range of energies and over the complete range of azimuthal directions. The analyzer is similar to the cylindrical mirror analyzer except that a linear potential...

  • A differential-spectrum ion-energy analyzer with electrostatic slanted grids. Sakamoto, Y.; Cho, T.; Hirata, M.; Yoshimura, T.; Makino, K.; Nakashima, Y.; Yatsu, K.; Tamano, T.; Miyoshi, S. // Review of Scientific Instruments;Oct95, Vol. 66 Issue 10, p4928 

    Describes a differential-spectrum ion-energy analyzer with electrostatic slanted grids. Upgrading of a previous slanted grid end-loss analyzer (SELA) to essentially eliminate secondary-electron current; Provision of a differential-spectrum mode of operation; Characterization of SELA using...

  • Multispeckle diffusing-wave spectroscopy: A tool to study slow relaxation and time-dependent dynamics. Viasnoff, Virgile; Lequeux, Franc¸ois; Pine, D. J. // Review of Scientific Instruments;Jun2002, Vol. 73 Issue 6, p2336 

    A multispeckle technique for efficiently measuring correctly ensemble-averaged intensity autocorrelation functions of scattered light from nonergodic and/or nonstationary systems is described. The method employs a charge coupled device (CCD) camera as a multispeckle light detector and a...

  • Precision spectroscopy using the Lamb dip in a pure ion plasma. Barnes, P. N.; Hart, G. W. // Review of Scientific Instruments;Feb1993, Vol. 64 Issue 2, p579 

    The use of the Lamb dip as a technique for precision spectroscopy in a non-neutral plasma is explored through computer modeling. Using singly ionized magnesium as the ion and under typical pure ion plasma conditions, the measurement appears to be feasible. Under the conditions calculated here,...

  • Picosecond transient grating spectroscopy: The nature of the diffracted spectrum. Hogemann, Claudia; Pauchard, Marc; Vauthey, Eric // Review of Scientific Instruments;Oct96, Vol. 67 Issue 10, p3449 

    Reports on findings of a study of the nature of the diffracted spectrum obtained in picosecond transient grating (TG) spectroscopy with white light continuum. Use of the system to measure an aromatic molecule in solution; Analysis of diffracted spectrum using Kogelnik's coupled wave theory;...

  • An equipment for three-dimensional spatially resolved gas analysis. Johansson, M.; Lundstro¨m, I.; Ekedahl, L.-G. // Review of Scientific Instruments;Sep2000, Vol. 71 Issue 9 

    The apparatus described is able to measure three-dimensional temperature and partial pressure distributions in gas mixtures with a spatial resolution better than 0.5 mm. The measurements are performed in a well defined laminar gas flow in a duct of rectangular cross section. The gas mixture is...

  • Gas analyser from Hitech Instruments.  // Chemical Business;Sep96, Vol. 10 Issue 2, p40 

    Presents Hitech Instrument's mounted analyzer to measure individual gas concentrations in mixtures.

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics