Improved atomic data for electron-transport predictions by the codes TIGER and TIGERP: II. Electron stopping and range data

Technical Report · Fri Apr 01 04:00:00 EST 1983

OSTI ID:6044646

Peek, J M; Halbleib, J A

The electron stopping and range data now used in the TIGER and TIGERP electron-transport codes are extracted and compared with other data for these processes. At the smallest collision energies treated by these codes, E approx. 1 keV, the stopping-power is estimated to be accurate for small-Z targets, to be about 25 percent too small for Z near 36 and to be a factor of three too small for Z > 79. These errors decrease with increasing E and the largest error for any target is roughly 20 percent for E = 10 keV. The closely related continuous-slowing-down range is estimated, at 1 keV, to be about 25 percent too small for small-Z targets and a factor of 2 too large for large-Z targets. The electron-transport problem of reflection from planer surfaces is re-investigated with improved stopping-power data. The effects of this change for the examples considered were about the size of the statistical uncertainties in the calculation, 1 to 2 percent.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6044646
• Report Number(s): SAND-83-0481; ON: DE83012339
• Country of Publication: United States
• Language: English

Related Subjects

654001* -- Radiation & Shielding Physics-- Radiation Physics
Shielding Calculations & Experiments
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
CHARGED-PARTICLE TRANSPORT
COLLISIONS
COMPUTER CODES
DATA
ELECTRON COLLISIONS
ELECTRONS
ELEMENTARY PARTICLES
ENERGY LOSSES
ERRORS
FERMIONS
INFORMATION
LEPTONS
LOSSES
NUMERICAL DATA
RADIATION TRANSPORT
RANGE
REFLECTION
T CODES
THEORETICAL DATA