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The ^7Li/^6Li ratio in the energy range from 150 to 1300 MeV/nucleon Measured with the balloon-borne ISOMAX 98 instrument in the upper atmosphere

Goebel, H. and Barbier, L. M. and Bremerich, M. and Christian, E. R. and de Nolfo, G. A. and Geier, S. and Gupta, S. K. and Hams, T. and Hof, M. and Menn, W. and Mewaldt, R. A. and Mitchell, J. W. and Schindler, S. M. and Simon, M. and Streitmatter, R. E. (2001) The ^7Li/^6Li ratio in the energy range from 150 to 1300 MeV/nucleon Measured with the balloon-borne ISOMAX 98 instrument in the upper atmosphere. In: Proceedings of the 27th International Cosmic Ray Conference. Vol.5. Copernicus Systems and Technology GmbH , Berlin, Germany, pp. 1663-1668.

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We report on the measured ^7Li/^6Li ratio at an atmospheric depth of 4.6 g/cm^2 in the energy range from 183 to 1314 MeV/nucleon, using the Isotope Magnet Experiment (ISOMAX). This balloon-borne magnetic spectrometer in combination with a Time-of-Flight system (TOF) and a silica-aerogel Cherenkov detector was built to measure the isotopic composition of the light elements (3 ≤ Z ≤ 8) in the cosmic radiation up to several GeV/nucleon. ISOMAX was flown on August 4-5, 1998, from Lynn Lake, Manitoba, Canada. The data was collected during 13 hours at an altitude which corresponds to a residual atmosphere of less than 5 g/cm2 . The results on 10 Be/9 Be ratio are presented in the these proceedings by Hams et al. (2001) in the TOF regime and by de Nolfo et al. (2001) in the Cherenkov regime.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Christian, E. R.0000-0003-2134-3937
de Nolfo, G. A.0000-0002-3677-074X
Geier, S.0000-0002-3948-9339
Hof, M.0000-0003-2884-3037
Mewaldt, R. A.0000-0003-2178-9111
Alternate Title:The measured ratio of Lithium isotopes in cosmic rays in the energy range from 0.2 to 1.3 GeV/nucleon with the ISOMAX 98 instrument
Additional Information:© Copernicus Gesellschaft 2001. This experiment was supported by grant NASA RTOP 353-87-02 at Goddard, by NAG5-5227 at CalTech, and by DFG Si 290/8 at Siegen. We would like to thank the many engineers and technicians that maid ISOMAX a success as well as the National Scientific Balloon Facility.
Group:Space Radiation Laboratory
Funding AgencyGrant Number
NASARTOP 353-87-02
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory2001-21
Record Number:CaltechAUTHORS:20150302-132105751
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:55419
Deposited By: Deborah Miles
Deposited On:04 Mar 2015 17:45
Last Modified:09 Mar 2020 13:19

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