Creation of transversely polarized high-energy electrons and positrons in crystals

Journal Article · Fri Jul 01 00:00:00 EDT 1983 · Sov. Phys. - JETP (Engl. Transl.); (United States)

OSTI ID:6775709

Baryshevskii, V B; Tikhomirov, V V

It is shown that when high-energy ..gamma.. quanta pass through a crystal at small angles to the crystallographic planes (axes) a new phenomenon arises: creation of transversely polarized electrons and positrons by unpolarized ..gamma.. quanta. Estimates based on the theory developed in this paper for this phenomenon show that it can be used to obtain transversely polarized electrons and positrons with degree of polarization 50--90% and with energies of hundreds and thousands GeV in the case of incidence of the ..gamma.. quanta on atomic planes, and starting with an energy of several tens of GeV in the case of incidence on atomic axes. Concrete calculations are made of the polarization, number, and angular distributions of positrons produced by 350-GeV ..gamma.. quanta incident on the (110) family of planes of a tungsten plate of thickness 3 x 10 cm. The features of the manifestation of the described phenomenon in bent crystals are analyzed.

• Research Organization: Belorussian State University
• OSTI ID: 6775709
• Journal Information: Sov. Phys. - JETP (Engl. Transl.); (United States), Vol. 58:1
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ELECTRONS
PARTICLE PRODUCTION
POSITRONS
TUNGSTEN
PHOTON TRANSPORT
ANGULAR DISTRIBUTION
CRYSTALS
GEV RANGE
PLATES
POLARIZATION
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
DISTRIBUTION
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
FERMIONS
LEPTONS
METALS
NEUTRAL-PARTICLE TRANSPORT
RADIATION TRANSPORT
TRANSITION ELEMENTS
654001* - Radiation & Shielding Physics- Radiation Physics
Shielding Calculations & Experiments