Nuclear fragmentation parameters needed for interpretation of observed fluxes of UH cosmic ray nuclei

1995 ◽  
Vol 15 (6) ◽  
pp. 39-48 ◽  
Author(s):  
C.J. Waddington ◽  
W.R. Binns ◽  
J.R. Cummings ◽  
T.L. Garrard ◽  
L.Y. Geer ◽  
...  
Keyword(s):  
Cosmic Ray ◽  
Nuclear Fragmentation

Light-fragment yield ratios from heavy-ion-induced fragmentation in atmospheric collisions of cosmic-ray primary nuclei

1991 ◽  
Vol 69 (12) ◽  
pp. 1481-1486
Author(s):  
M. J. Pantazopoulou ◽  
A. F. Barghouty ◽  
R. A. Witt
Keyword(s):  
Cross Sections ◽  
Cosmic Ray ◽  
Heavy Ion ◽  
Fragmentation Model ◽  
Light Fragment ◽  
Collision System ◽  
Nuclear Fragmentation ◽  
Good Correspondence ◽  
Total Cross Sections ◽  
Fragment Yield

A statistical nuclear-fragmentation model is used to calculate the total inclusive cross sections and yield ratios of light fragments (p, d, 3H, and 3He) from 800 MeV/nucleon mass-symmetric and mass-asymmetric collision systems. Comparison with available data reveal good correspondence between the observed total cross sections and fragment-yield ratios, and the calculated ones. The model is also used to calculate the 4He/3He ratio from CNO + CNO collisions at 1 GeV/nucleon. Averaging over the mass numberof the CNO collision system, we calculate a ratio of 5.76 ± 0.52 ± 12%. A mass-independent thermal-model formula gives a ratio of only ≈ 1.5. The appreciable calculated production of 4He relative to 3He, as fragmentation products in atmospheric CNO collisions with 1 GeV/nucleon cosmic-ray primary CNO nuclei, has important implications for studies of atmospheric secondaries as background sources for space-based and balloon-borne light-fragment observations.

scholarly journals Nuclear fragmentation models and uncertainties in cosmic ray transport and radiobiology studies

1993 ◽  
Vol 28 (2) ◽  
pp. 183-185 ◽  
Author(s):  
F. A. CUCINOTTA ◽  
J. W. WILSON ◽  
L. W. TOWNSEND ◽  
J. L. SHINN
Keyword(s):  
Cosmic Ray ◽  
Nuclear Fragmentation

Solar modulation and nuclear fragmentation effects in galactic cosmic ray transport through shielding

1994 ◽  
Vol 14 (10) ◽  
pp. 853-861 ◽  
Author(s):  
L.W. Townsend ◽  
F.A. Cucinotta ◽  
J.W. Wilson ◽  
J.L. Shinn ◽  
G. Badhwar
Keyword(s):  
Cosmic Ray ◽  
Solar Modulation ◽  
Nuclear Fragmentation ◽  
Galactic Cosmic Ray

DEVELOPMENT OF THE COSMIC RAY TECHNIQUES

1982 ◽  
Vol 43 (C8) ◽  
pp. C8-69-C8-88 ◽  
Author(s):  
B. Rossi
Keyword(s):  
Cosmic Ray

Cosmic ray variations and space weather

2010 ◽  
Vol 180 (5) ◽  
pp. 519 ◽  
Author(s):  
L.I. Dorman
Keyword(s):  
Space Weather ◽  
Cosmic Ray
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