Paths and Ionization Losses of Proton Energy in Different Substances,
Abstract
Ionization energy losses of charged particles in a substance are described by the well-known Bethe-Bloch formula. However, the magnitudes of the ionization potentials in region of low proton energies (E < 100 MeV) for heavy elements prove to be considerably larger than those at high energies. Thus studies of ionization losses in the region of high energies are the main source of the experimental information necessary for the correction of the Bethe Bloch formula and determination of magnitudes of ionization potentials I. The purpose of this work was to measure the magnitudes of ionization losses dE/ds, paths R and ionization potentials I at a proton energy of E 670 MeV. The measurements were taken by the relative method for different substances of x, and the magnitudes of q sub x=(dE/ds) sub x/(dE/ds) sub Al and px=R sub x/R sub Al were found. Quantities qx and px weakly depend on the energy E where at E=200-600 MeV, a=(2-4).10-2 for different substances. The proton energy was determined with an accuracy of 2 MeV. (Russian Translations)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 14, 1986
- Accession Number
- ADA166332
Entities
People
- I. I. Karpov
- I. M. Vasilovskiy
- V. I. Petrukhin
- Yu. D. Prokoshkin
Organizations
- National Air and Space Intelligence Center