Cosmic ray lithium isotope measurement with AMS-01
Name
720749138-MIT.pdf
Description
Full printable version
Size
12.09 MB
Format
Adobe PDF
Checksum (MD5)
2af18954120118713940229e78f93171
Author(s)
Zhou, Feng, Ph. D. Massachusetts Institute of Technology
Advisor(s)
Ulrich J. Becker.
Date Issued
2009
Publisher
Massachusetts Institute of Technology
Abstract
The AMS-01 detector measured charged cosmic rays during 10 days on the Space Shuttle Discovery in 1998 and collected 108 events. By identifying 8349 Lithium and 22709 Carbon nuclei from the raw data, this thesis presents the measurement of cosmic ray Lithium to Carbon ratio of presently highest statistics and momentum resolutions in the rigidity range of 2 GV to 100 GV. The 7Li to 6Li ratio is measured to be 1.07±0.16 in the rigidity region achieved from 2.5 GV to 6.3 GV. The experimental results are used to provide constraints on cosmic ray propagation models and address the "Lithium Problems".
Description
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2009.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 105-112).
Subjects
Physics.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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copyright. They may be viewed from this source for any purpose, but
reproduction or distribution in any format is prohibited without written
permission. See provided URL for inquiries about permission.
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