| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8167547 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2017 | 4 Pages |
Abstract
By means of the simultaneous use of the Silicon Tracker and the RICH, AMS is able to investigate the isotopic composition of cosmic rays in the kinetic energy range from few GeV/n to â¼10Â GeV/n for elements with charge |Z| up to 4 with unprecedented statistics. The precise measurement of cosmic rays light nuclei isotopes ratio, such as 3He/4He and 10Be/9Be, provide important constraints to the free parameters in the models for cosmic rays propagation in our Galaxy. In particular the mass distinction between 3He and 4He needed for the measurement of the 3He/4He flux ratio is obtained by statistical methods. The excellent simulation of the AMS detector provides the precise description needed for this analysis. Moreover, the use of the geomagnetic field for selecting control samples of CRs with enhanced abundances of heavy isotopes provides an independent tool for the study of the light nuclei isotopic composition with AMS.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
Hu Liu, J. Casaus, F. Giovacchini, A. Oliva, X. Xia, AMS02-RICH Collaboration AMS02-RICH Collaboration,