Translator Disclaimer
29 December 2004 Development of a fluorescence-based point detector for biological sensing
Author Affiliations +
This paper presents the status of an ongoing development of a point detector for biological warfare agent sensing based on ultraviolet laser-induced fluorescence from single particles in air. The detector will measure the fluorescence spectra of single particles in a sheath flow air beam. The spectral detection part of the system consists of a grating and a photomultiplier tube array with 32 channels, which measure fluorescence spectra in the wavelength band from 300 nm to 650 nm. The detector is designed to measure laser induced fluorescence from single laser pulses and has been tested by measuring fluorescence from simulants of biological warfare agents in aqueous solution. The solutions were excited with laser pulses at the wavelengths of 293 nm and 337 nm. The paper also presents preliminary results on the sheath flow particle injector and time-resolved measurements of fluorescence from biological warfare agent simulants in solution.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Per Jonsson, Fredrik Kullander, Melker Nordstrand, Torbjorn Tjarnhage, Par Wasterby, and Mikael Lindgren "Development of a fluorescence-based point detector for biological sensing", Proc. SPIE 5617, Optically Based Biological and Chemical Sensing for Defence, (29 December 2004);

Back to Top