Recent improvement of spallation cross section calculations, applicable to cosmic ray physicsAbout half of the cosmic ray nuclei heavier than helium have suffered nuclear transformations while colliding with the interstellar gas. The semiempirical calculations developed for calculating the still unmeasured cross sections had errors of about 25-50 per cent, depending on the target mass interval. Recent precise measurements have permitted significant improvements in the calculation of cross sections. Several such improvements are discussed. A status report on work-in-progress is presented on a general modification of the spallation equation parameters.
Document ID
19880049831
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Silberberg, R. (Hulburt (E. O.) Center for Space Research Washington, DC, United States)
Tsao, C. H. (U.S. Navy, E. O. Hulburt Center for Space Research, Washington DC, United States)
Letaw, J. R. (Severn Communications Corp. Severna Park, MD, United States)