FEL2013 - List of Authors (Oganesyan, K.B.)

Paper	Title	Page
MOPSO59	The Influence of the Magnetic Field Inhomogeneity on the Spontaneous Radiation and the Gain in the Plane Wiggler	97
	K.B. Oganesyan ANSL, Yerevan, Armenia
	Funding: ISTC We calculate the spectral distribution of spontaneous emission and the gain of electrons moving in plane wiggler with inhomogeneous magnetic field. We show that electrons do complicated motion consisting of slow(strophotron) and fast(undulator) parts. We average the equations of motion over fast undulator part and obtain equations for connected motion. It is shown, that the account of inhomogenity of the magnetic field leads to appearence of additional peaks in the spectral distribution of spontaneous radiation and the gain.

MOPSO60	Channeled Positrons as a Source of Gamma Radiation	101
	K.B. Oganesyan ANSL, Yerevan, Armenia
	Funding: ISTC A possibility of channeling of low-energy (5 / 20Mev) relativistic positrons with coaxial symmetry around separate crystal axes of negative ions in some types of crystals, is shown. The annihilation processes of positrons with medium electrons are investigated in details. The lifetime of a positron in the regime of channeling is estimated 〖10〗^-6 sec which on a 〖10〗⁹/〖10〗⁸ times is bigger than at usual cases.

MOPSO61	Modulated Medium for Generation of Transition Radiation	105
	K.B. Oganesyan ANSL, Yerevan, Armenia
	Funding: ISTC It is shown on an example of amorphous quartz, under the influence of a standing microwave field, at its certain parameters, superlattice is created in the medium where difference in values of dielectric constants of neighboring layers can be up to third order. This superlattice exists during the nanosecond, however it is sufficient for using it as a radiator for generation of transition radiation by relativistic electrons.

Paper

Title

Page

The Influence of the Magnetic Field Inhomogeneity on the Spontaneous Radiation and the Gain in the Plane Wiggler

97

K.B. Oganesyan
ANSL, Yerevan, Armenia

Funding: ISTC
We calculate the spectral distribution of spontaneous emission and the gain of electrons moving in plane wiggler with inhomogeneous magnetic field. We show that electrons do complicated motion consisting of slow(strophotron) and fast(undulator) parts. We average the equations of motion over fast undulator part and obtain equations for connected motion. It is shown, that the account of inhomogenity of the magnetic field leads to appearence of additional peaks in the spectral distribution of spontaneous radiation and the gain.

MOPSO60

Channeled Positrons as a Source of Gamma Radiation

101

K.B. Oganesyan
ANSL, Yerevan, Armenia

Funding: ISTC
A possibility of channeling of low-energy (5 / 20Mev) relativistic positrons with coaxial symmetry around separate crystal axes of negative ions in some types of crystals, is shown. The annihilation processes of positrons with medium electrons are investigated in details. The lifetime of a positron in the regime of channeling is estimated 〖10〗^-6 sec which on a 〖10〗⁹/〖10〗⁸ times is bigger than at usual cases.

MOPSO61

Modulated Medium for Generation of Transition Radiation

105

K.B. Oganesyan
ANSL, Yerevan, Armenia

Funding: ISTC
It is shown on an example of amorphous quartz, under the influence of a standing microwave field, at its certain parameters, superlattice is created in the medium where difference in values of dielectric constants of neighboring layers can be up to third order. This superlattice exists during the nanosecond, however it is sufficient for using it as a radiator for generation of transition radiation by relativistic electrons.