Channeling 2014

Session

S1: Channeling & Radiations in Crystals

7 Oct 2014, 14:30

Capri-Naples, Italy

Conveners

S1: Channeling & Radiations in Crystals

• Vincenzo Guidi (FE)

Description

Session 1.3

155. Channeling and Radiation of Ultra-Relativistic Electrons and Positrons in Linear, Bent and Periodically Bent Crystals as Seen from Simulations with MBN Explorer

Dr Andrey Solov'yov (Physics Department, Goethe University, Max-von-Laue Str. 1, D-60438 Frankfurt am Main)

07/10/2014, 14:30

Invited talk

We report results of simulation of axial and planar channeling of electrons, positrons and muons in straight [1] and periodically [2, 3] bent Si crystals. The simulations of trajectories of channelled projectiles with accounting for the all-atom interactions have been performed by solution of the classical relativistic equations of motion using newly developed module of the universal MBN...

102. Channeling of Sub-GeV Electrons in Bent and Periodically Bent Single Crystals

Prof. Hartmut Backe (Institute of Nuclear Physics, Johannes Gutenberg University, D-55099 Mainz, Germany)

07/10/2014, 15:00

Oral

Experiments have been performed at the Mainz Microtron MAMI to investigate planar electron channeling in bent [1], and in periodically bent silicon single crystals [2-4]. The low emittance electron beam of MAMI providing energies below 0.855 GeV is well suited to prepare a beam with small angular divergence which is mandatory for channeling experiments. A very important prerequisites for...

88. Investigation on the Radiation Emitted by Sub-GeV Electrons in a Bent Crystal

LAURA BANDIERA (FE)

07/10/2014, 15:15

Oral

We report an investigation on the electromagnetic radiation emitted by channeled and volume reflected sub-GeV electrons in an ultra-thin bent crystal performed at MAMI accelerator (Germany). In the last years, different studies on the coherent interactions of negative charged particles with bent crystals have been carried out at CERN at ultra-high energies (~100 GeV) [1]. In particular,...

156. Radiation from Multi-GeV Electrons and Positrons in Periodically Bent Silicon Crystal

Dr Andrey Korol (Physics Department, Goethe University, Max-von-Laue Str. 1, D-60438 Frankfurt am Main)

07/10/2014, 15:30

Oral

The channeling process in periodically bent Si crystals is shown [1-3] to efficiently serve for producing highly monochromatic radiation in a gamma-ray energy spectral range. A short-period small-amplitude bending yields narrow undulator-type spectral peaks in radiation spectrum from multi-GeV electrons and positrons channeling through the crystal. Benchmark theoretical results on the...

176. Radiation by High Energy Electrons in Ultra Thin Crystal

Prof. Nikolai Shul'ga (Akhiezer Institute for Theoretical Physics of NSC KIPT)

07/10/2014, 15:45

Oral

An effect analogous to TSF-effect is possible at passing of particles through thin crystals. In this case, nevertheless, not the Bremstrahlung should be suppressed, but the coherent ultrarelativistic electrons radiation. In the last years a possibility is opened to research experimentally this effect, which is connected with the development of the technology of producing ultra thin crystals...