Bremsstrahlung energy spectra from electrons with kinetic energy 1 keV-10 GeV incident on screened nuclei and orbital electrons of neutral atoms with Z = 1--100*

Journal Article · Sat Nov 01 04:00:00 EST 1986 · At. Data Nucl. Data Tables; (United States)

DOI:https://doi.org/10.1016/0092-640X(86)90014-8· OSTI ID:5109277

Seltzer, S M; Berger, M J

A comprehensive set of bremsstrahlung cross sections (differential in the energy of the emitted photons) is tabulated. The set includes results for electrons with energies from 1 keV to 10 GeV incident on neutral atoms with atomic numbers Z = 1 to 100. For bremsstrahlung in the Coulomb field of the atomic nucleus, use was made of (a) results of Pratt, Tseng, and collaborators based on numerical phase-shift calculations for the screened Coulomb potential at energies below 2 MeV; and (b) the analytical high-energy theory (with Coulomb corrections) of Davies, Bethe, Maximon, and Olsen at energies above 50 MeV, supplemented by the Elwert Coulomb correction factor an the theory of the high-frequency limit given by Jabbur and Pratt. In the high-energy region, the effect of screening was included by the use of Hartree-Fock atomic form factors. A numerical interpolation scheme, applied to suitably scaled cross sections, was used to bridge the gap between the low-energy and high-energy theoretical results, and thus to obtain improved cross sections in the intermediate-energy region 2 to 50 MeV. Bremmsstrahlung in the field of the atomic electrons was calculated according to the theory of Haug, combined with screening corrections derived from Hartree-Fock incoherent scattering factors.

• Research Organization: National Bureau of Standards, Gaithersberg, Maryland 20899
• OSTI ID: 5109277
• Journal Information: At. Data Nucl. Data Tables; (United States), Journal Name: At. Data Nucl. Data Tables; (United States) Vol. 35:3; ISSN ADNDA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
BREMSSTRAHLUNG
COLLISIONS
CROSS SECTIONS
DATA
ELECTROMAGNETIC RADIATION
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ENERGY RANGE
ENERGY SPECTRA
GEV RANGE
GEV RANGE 01-10
HARTREE-FOCK METHOD
INFORMATION
KEV RANGE
MEV RANGE
NUMERICAL DATA
RADIATIONS
SCREENING
SPECTRA
THEORETICAL DATA