Cohen, C. M. S. and Mewaldt, R. A. and Christian, E. R. and Cummings, A. C. and Leske, R. A. and Slocum, P. L. and Stone, E. C. and von Rosenvinge, T. T. and Wiedenbeck, M. E. (2001) Examining the Abundances of Rare Elements in Solar Energetic Particle Events. In: Proceedings of the 27th International Cosmic Ray Conference. Vol.8. Copernicus Systems and Technology GmbH , Berlin, Germany, pp. 3128-3131. http://resolver.caltech.edu/CaltechAUTHORS:20150303-102207197
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Abstract
Using data accumulated with the Solar Isotope Spectrometer on ACE during 27 large solar energetic particle (SEP) events the effects of charge-to-mass (Q/M) fractionation on rare elements are examined. In an attempt to correct for these fractionation effects and obtain preliminary estimates of the coronal abundances of K, Ti, Cr, Mn, Co, Ni, Cu, and Zn, the SEP events are classified according to their Fe/Si ratio. The data from all events within an Fe/Si category are summed and the rare element abundances extracted over an energy interval of 20 to 65 MeV/nucleon. We estimated the apparent Q/M fractionation, corrected for it, and obtained initial results which are encouraging.
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| Additional Information: | © Copernicus GmbH. This work was supported by NASA at Caltech (under grant NAG5-6912), Jet Propulsion Laboratory, and Goddard Space Flight Center. | ||||||
| Group: | Space Radiation Laboratory | ||||||
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| Record Number: | CaltechAUTHORS:20150303-102207197 | ||||||
| Persistent URL: | http://resolver.caltech.edu/CaltechAUTHORS:20150303-102207197 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 55459 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | Deborah Miles | ||||||
| Deposited On: | 05 Mar 2015 00:52 | ||||||
| Last Modified: | 12 Sep 2017 23:23 |
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