Abstract
Recently, a second version of the Particle Analysis by Laser Mass Spectroscopy (PALMS) instrument was constructed to fly in the nose of a WB-57F research aircraft, allowing it to make in-situ measurements of stratospheric aerosols. We present here the technical aspects of the design and construction of the PALMS aircraft instrument. These include the development of a robust and complex data acquisition and control software program, a stable optical system with in-flight correction, the mechanical packaging required for in-flight operation, a shrouded inlet designed for optimal particle sampling, and custom and commer cial electronics. We also present a brief review of the performance of the PALMS instrument during its first deployment in the WB-57F.
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