A Caltech Library Service

A measurement of cosmic ray deuterium from 0.5–2.9 GeV/nucleon

de Nolfo, G. A. and Barbier, L. M. and Christian, E. R. and Davis, A. J. and Golden, R. L. and Hof, M. and Krombel, K. E. and Labrador, A. W. and Menn, W. and Mewaldt, R. A. and Mitchell, J. W. and Ormes, J. F. and Rasmussen, I. L. and Reimer, O. and Schindler, S. M. and Simons, M. and Stochaj, S. J. and Streitmatter, R. E. and Webber, W. R. (2000) A measurement of cosmic ray deuterium from 0.5–2.9 GeV/nucleon. In: Acceleration and Transport of Energetic Particles Observed in the Heliosphere. AIP Conference Series. No.528. American Institute of Physics , Melville, NY, pp. 425-428. ISBN 1-56396-951-3

PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


The rare isotopes ^(2)H and ^(3)He in cosmic rays are believed to originate mainly from the interaction of high energy protons and helium with the galactic interstellar medium. The unique propagation history of these rare isotopes provides important constraints on galactic cosmic ray source spectra and on models for their propagation within the Galaxy. Hydrogen and helium isotopes were measured with the balloon-borne experiment, IMAX, which flew from Lynn Lake, Manitoba in 1992. The energy spectrum of deuterium between 0.5 and 3.2 GeV/nucleon measured by the IMAX experiment as well as previously published results of ^(3)He from the same instrument will be compared with predictions of cosmic ray galactic propagation models. The observed composition of the light isotopes is found to be generally consistent with the predictions of the standard Leaky Box Model derived to fit observations of heavier nuclei

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Additional Information:© 2000 American Institute of Physics. Issue Date: 15 September 2000. The IMAX project was supported in the United States by NASA under NAG5-5227 (Caltech) and under RTOP 353-87-02 (GSFC) and grants NAGW-1418 (NMSU/BBMF) and in Germany by the Deutsche Forschungsgemeinschaft (DFG) and the Bundesministerium für Bildung, Wissenschaft, Forschung und Techologie(BMBF).
Group:Space Radiation Laboratory
Funding AgencyGrant Number
NASARTOP 353-87-02
Deutsche Forschungsgemeinschaft (DFG)UNSPECIFIED
Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie (BMBF)UNSPECIFIED
Subject Keywords:galactic cosmic rays; cosmic ray propagation; high-energy cosmic ray interactions; interstellar matter; cosmic ray protons; cosmic ray nuclei; isotope relative abundance; deuterium; cosmic ray energy spectra
Classification Code:PACS: 96.40.De; 98.70.Sa; 95.85.Ry
Record Number:CaltechAUTHORS:20111129-121047611
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:27997
Deposited By: Jason Perez
Deposited On:29 Nov 2011 23:27
Last Modified:29 Apr 2014 22:46

Repository Staff Only: item control page