Energy Moment Method for Straggling of an Ultra-Relativistic Electron Beam.
Abstract
High energy electrons propagating in matter are subject to energy loss due to single particle interactions, i.e. bremsstrahlung radiation and ionizing collisions with ambient atoms. In addition, if the electrons propagate in a high current beam, inductive electric fields arising from the current changes at the front and rear of the beam pulse can have a significant retarding effect on the beam electrons (energy extracted in this way can be dissipated resistively in currents driven in the ambient medium; in some cases, some of the energy goes into accelerating electrons at the pulse tail). As a result of these three mechanisms, the mean energy of propagating electrons falls off, and an energy spread develops. In general, one can define an energy spectrum f(E, t), as a function of propagation distance t.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1976
- Accession Number
- ADA021980
Entities
People
- Mártin Lampe
Organizations
- United States Naval Research Laboratory