The energy spectrum of an electron beam transported over distances of 2 m in a gas is studied. An optimum residual gas pressure (p//o//p//t approximately equals 1 torr for air) is found for which the energy spectrum undergoes the smallest change. Any deviation from p//o//p//t shifts the peak of the energy spectrum toward lower energies and increases the energy spread. The changes in the energy spectrum are caused by a variation in the propagation efficiency for the various parts of the beam for various values of p and are due to features in the time-energy structure, which is governed by the electron acceleration.
|Number of pages||3|
|Journal||Sov Phys Tech Phys|
|Publication status||Published - 1978|
ASJC Scopus subject areas
- Environmental Science(all)
- Earth and Planetary Sciences(all)