Cosmic Ray Hydrogen Isotopes from 0.2 to 3.0 GeV/nucleon

Authors :: Reimer, O.
Davis, A. J.
Barbier, L. M.
Christian, E. R.
Golden, R. L.
Hof, M.
Krombel, K. E.
Labrador, A. W.
Menn, W.
Mewaldt, R. A.
Mitchell, J. W.
Ormes, J. F.
Rasmussen, I. L.
Schindler, S. M.
Simon, M.
Stochaj, S. J.
Stone, E. C.
Streitmatter, R. E.
Webber, W. R.
Iucci, N.
Lamanna, E.
Publication Year :: 1995
Publisher :: International Union of Pure and Applied Physics, 1995.
Abstract: We have measured the energy dependent abundances of the hydrogen isotopes by the IMAX balloon-borne magnet spectrometer during a flight in July, 1992. A high- resolution time-of-flight system was used in conjunction with a drift chamber/MWPC-tracking system to determine the mass by means of a velocity vs. magnetic rigidity technique. A model of the instrument response was developed in order to unfold the species and rigidity-dependent effects. Measurements of the ^2H/^1 H-ratio from 0.2 to 3.0 Ge V / n will be presented.

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