On possibility of measurement of the electron beam energy using absorption of radiation by electrons in a magnetic field

The possibility of the precise measurement of the electron beam energy using absorption of radiation by electrons in a static and homogeneous magnetic field in a range up to a few hundred GeV energies, was considered in [1]. With the purpose of experimental checking of this method in a range of several tens MeV energies, the possibility of measurement of absolute energy of the electron beam energy with relative accuracy up to 10^{-4} is examined in details.Comment: 14 pages, 10 figure

Suppression of the radiation limit through autoresonant acceleration of charged particles by an electrostatic field

We consider the autoresonant motion of a charged particle in the field of a transverse electromagnetic wave propagating with the speed of light along a stationary homogeneous magnetic field with allowance for radiative friction. It is shown that the loss of wave-particle synchronism due to radiative friction can be suppressed by an external electrostatic field that is parallel to the magnetic field. © 1997 Plenum Publishing Corporation

On the possibility of the autoresonant motion of an electron in a slow electromagnetic wave

The possibility of autoresonance in a slow electromagnetic wave propagating along the straight lines of the external magnetic field is discussed. It turns out that the autoresonant regime of the motion in such a wave is possible if some rather restrictive relations between the electric drift velocity and the phase velocity of the wave take place. It also depends on the polarization of the wave. The general case of the elliptical polarization is considered. The optical regime corresponds to the wave with linear polarization in the direction of the constant electric field. For this case our calculations show that energy of the particle can unlimitedly increase or decrease. The rate of acceleration can be even larger than in the case of 'vacuum wave'. Radiative forces will restrict this process

On the possibility of the autoresonant motion of an electron in a slow electromagnetic wave

The possibility of autoresonance in a slow electromagnetic wave propagating along the straight lines of the external magnetic field is discussed. It turns out that the autoresonant regime of the motion in such a wave is possible if some rather restrictive relations between the electric drift velocity and the phase velocity of the wave take place. It also depends on the polarization of the wave. The general case of the elliptical polarization is considered. The optical regime corresponds to the wave with linear polarization in the direction of the constant electric field. For this case our calculations show that energy of the particle can unlimitedly increase or decrease. The rate of acceleration can be even larger than in the case of 'vacuum wave'. Radiative forces will restrict this process

On drift theory of motion of charged particles in Tokamaks

The authors consider the second order drift theory approximation for charged particle motion in a Tokamak; the second order term describing inertial drift is used. It is shown that this drift increases the maximum displacement of trapped particles if the electric drift velocity VE>0, and decreases it if VE<0. The considered effect is completely caused by the toroidal effects of the magnetic field, and depends on the Tokamak safety factor