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Author: A. Bailey
Publisher:
ISBN:
Category : Complex ions
Languages : en
Pages : 108
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Book Description
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).
Author: A. Bailey
Publisher:
ISBN:
Category : Complex ions
Languages : en
Pages : 108
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Book Description
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).
Author: A. Bailey
Publisher:
ISBN:
Category :
Languages : en
Pages : 103
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Book Description
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).
Author: A. D. Bailey
Publisher:
ISBN:
Category : D region
Languages : en
Pages : 0
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Book Description
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)
Author: R. S. Narcisi
Publisher:
ISBN:
Category : D region
Languages : en
Pages : 62
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Book Description
Author: Alan D. Bailey
Publisher:
ISBN:
Category : Emission spectroscopy
Languages : en
Pages : 24
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Book Description
This report presents the positive-ion mass spectrometer that was part of a SWIR rocketborne electron-accelerator experiment. A quadrupole mass filter with a specially designed ion collection configuration is described. Special attention is given to the problem introduced by high positive vehicle potentials which result from the high emission currents of the electron-accelerator. A comprehensive ion mass scanning program is described and important instrument parameters are specified. Typical data is included only to illustrate instrument performance.
Author: Frances L. Sachs
Publisher:
ISBN:
Category : Mass spectrometers
Languages : en
Pages : 410
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 36
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Author: R. S. NARCISI
Publisher:
ISBN:
Category : D region
Languages : en
Pages : 0
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Book Description
A quadrupole mass spectrometer system employing a liquid nitrogen chilled zeolite pump has recently been developed for sampling positive ions at altitudes above 50 kilometers. This system was flown successfully on a Nike-Cajun rocket on 31 October 1963, and has provided the first positive ion composition measurements in the D-region. For simultaneous environmental measurements of ion and electron densities, two spherical electrostatic analyzers were included in the rocket payload. Supplemental information on ionospheric conditions was provided by a ground-based ionosonde. Due to the high sensitivity of the system approximately twenty (20) positive ion peaks were detected in the mass range 10 to 45 amu within the altitude range of 64 to 112 km. The predominant ions detected within the D-region (64 to 82 km) were 18(+), 30(+) and (37=1)(+), with 32(+) rapidly rising above 75 km approaching the abundance of 30(+) at 83 km. At 82.5 km a sharp transition occurred in the spectra, characterized by the rapid disappearance of 18(+) and 37(+) and instantaneous appearance of six (6) new ion peaks. Five (5) of these ion peaks are suggested to be the metallic ions of sodium (23(+)), magnesium (24(+), 25(+), 26(+)) and calcium (40(+)). The metallic ions all exhibited an identical altitude profile, a ten (10) km-wide peak with a maximum at 95 km, a minimum at 105 km, and then continuously increasing until apogee at 112 km.
Author: Robert A. Walter
Publisher:
ISBN:
Category : Mass spectrometry
Languages : en
Pages : 28
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1252
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