Detailed analysis of the scope of the modified Firsov model

Journal Article · Sun May 01 00:00:00 EDT 1983 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.27.2403· OSTI ID:6075660

Cruz, S A; Vargas-Aburto, C; Brice, D K; Alonso, E V; Armour, D G

A detailed and systematic analysis of the scope of the Firsov model as modified by Cheshire when no adjustable parameters are included in the calculations of the low-velocity electronic-stopping cross section is presented. For this purpose we summarize and extend our previously reported (Radiat. Eff. Lett. 43, 79 (1979); Nucl. Instrum. Methods 170, 205 (1980)) preliminary results on the role of all computational degrees of freedom that influence the outcome of the calculations, namely, (a) inclusion of trajectory, (b) accuracy of wave functions and speed of atomic electrons, (c) motion of Firsov's plane, and (d) consideration of experimental conditions. We find that the Firsov theory is accurate only within a factor of 2; therefore, at least a scale factor is necessary in order to get reasonable agreement with experiment.

• Research Organization: Instituto de Fisica, Universidad Nacional Autonoma de Mexico, Apartado Postal 20-364, Delegacion Alvaro Obregon, 01000 Mexico, Distrito Federal, Mexico
• OSTI ID: 6075660
• Journal Information: Phys. Rev. A; (United States), Vol. 27:5
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
GASES
CHARGED-PARTICLE TRANSPORT
IONS
STOPPING POWER
SOLIDS
ATOMIC NUMBER
CROSS SECTIONS
DRAG
ENERGY LOSSES
MATTER
CHARGED PARTICLES
FLUIDS
LOSSES
RADIATION TRANSPORT
654001* - Radiation & Shielding Physics- Radiation Physics
Shielding Calculations & Experiments