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Cosmic ray composition measurements and high energy ionization spectrometersElement abundances of cosmic rays Li through Si with energy above 0.8 GeV/amu were measured on a balloon borne instrument containing a total absorption ionization spectrometer. Statistical techniques were used to analyze the five measurements of each particle to determine its charge and energy. The technique allows a determination of systematic errors to be made. Corrections for Landau fluctuations, spark chamber inefficiency, and background particles were included. Comparison with other published results is made. Differences in the shape of the spectrum determined from measurements of different workers indicate that the absolute intensity is still known to only plus or minus 15% between 2 and 10 GV/c rigidity.
Document ID
19750007510
Acquisition Source
Legacy CDMS
Document Type
Preprint (Draft being sent to journal)
Authors
Arens, J. F. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Ormes, J. F. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
September 3, 2013
Publication Date
September 1, 1974
Subject Category
Space Radiation
Report/Patent Number
X-661-74-335
NASA-TM-X-70802
Accession Number
75N15582
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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