Targeted flight opportunities with large area collectors
Mackinnon, Ian D.R. (1986) Targeted flight opportunities with large area collectors. In Hoerz, F. (Ed.) Trajectory Determinations and Collection of Micrometeoroids on the Space Station, Lunar and Planetary Institute, Houston, TX, pp. 70-71.
A major factor in the stratospheric collection process is the relative density of particles at the collection altitude. With current aircraft-borne collector plate geometries, one potential extraterrestrial particle of about 10 micron diameter is collected approximately every hour. However, a new design for the collector plate, termed the Large Area Collector (LAC), allows a factor of 10 improvement in collection efficiency over current conventional geometry. The implementation of LAC design on future stratospheric collection flights will provide many opportunities for additional data on both terrestrial and extraterrestrial phenomena. With the improvement in collection efficiency, LAC's may provide a suitable number of potential extraterrestrial particles in one short flight of between 4 and 8 hours duration. Alternatively, total collection periods of approximately 40 hours enhance the probability that rare particles can be retrieved from the stratosphere. This latter approach is of great value for the cosmochemist who may wish to perform sophisticated analyses on interplanetary dust greater than a picogram. The former approach, involving short duration flights, may also provide invaluable data on the source of many extraterrestrial particles. The time dependence of particle entry to the collection altitude is an important parameter which may be correlated with specific global events (e.g., meteoroid streams) provided the collection time is known to an accuracy of 2 hours.
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|Item Type:||Conference Paper|
|Additional Information:||SAO/NASA: SEE N86-30584 21-88|
|Keywords:||large area collector, stratospheric dust particle, interplanetary dust, cosmochemistry|
|Subjects:||Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > ATMOSPHERIC SCIENCES (040100)
Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > GEOLOGY (040300) > Extraterrestrial Geology (040302)
|Divisions:||Current > Institutes > Institute for Future Environments|
|Deposited On:||18 Mar 2013 23:17|
|Last Modified:||18 Mar 2013 23:17|
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