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Rapid fitting of particle cascade development data from X-ray film densitometry measurementsA semiautomatic method of fitting transition curves to X-ray film optical density measurements of electromagnetic particle cascades is described. Several hundred singly and multiple interacting cosmic ray events from the JACEE 8 balloon flights were analyzed using this procedure. In addition to greatly increased speed compared to the previous manual method, the semiautomatic method offers increased accuracy through maximum likelihood fitting.
Document ID
19890014889
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Roberts, E. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Benson, Carl M. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Fountain, Walter F. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
September 5, 2013
Publication Date
June 1, 1989
Subject Category
Space Radiation
Report/Patent Number
NAS 1.15:100368
NASA-TM-100368
Accession Number
89N24260
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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