The ROSCOE Manual. Volume 17. High-Altitude Debris-Energy Deposition.
Abstract
Models of the high-altitude debris-energy partition and deposition have been adopted for use in ROSCOE. The models for the debris-energy partition and heavy-particle source spectra incorporate the work of Crevier and Kilb for the loss-cone and ion-leak particles. The determination of the total (and spectrum of the) UV portion of the kinetic yield remaining after that assigned to all the heavy-particle motion is based on the work of Fajen and Sappenfield. Representative points in the spatial distribution function specified for the loss-cone and ion-leak particles are used as effective source points through which magnetic field lines are traced in the downward direction through the intercepted grid cells in the geocentric quadrupole coordinate system. Conventional heavy-particle range-energy theory is employed along these paths, without regard to spiralling effects, to deposit the energy of these heavy particles in the traversed cells. Charge-exchange particles are deposited without regard to the magnetic field. The total heavy-particle energies deposited by inelastic and by elastic collisions in each cell are partitioned into various modes and species which are ultimately made compatible with the late-time grid chemistry. The UV energy groups, as well as the x-ray energy, are deposited by tracing ray paths (and constructing line integrals of relevant species) from the event point to each cell in the high-altitude grid treated as a target cell.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 22, 1975
- Accession Number
- ADA043547
Entities
People
- Daniel A. Hamlin
- John I. Valerio
- Jon Y. Wang
- Melvin R. Schoonover