Download or read book Development of an Ion Mass Spectrometer and Sounding Rocket System for D-region Cluster-ion Measurement written by A. Bailey and published by . This book was released on 1982 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Ion Mass Spectrometer and supporting Sounding Rocket System were developed to make in situ measurements of cluster-ions in the D-region of the ionosphere. A cryogenically vacuum-pumped quadrupole mass filter and secondary emission ion counter are coupled to make mass spectral measurements of positive and negative ion composition in ambient gas sampled at the apex of a cone designed to attach the shock wave induced by supersonic sounding rocket speeds. (Author).