Conveners
W2.1: The 8th AGTaX workshop “Advanced Generation of THz and X-ray beams
- Alexey Tishchenko (National Research Nuclear University "MEPhI")
Dr
Alexander Aryshev
(KEK)
30/09/2016, 09:00
A compact accelerator facility designed to generate high-brightness electron beams is of great demand throughout a broad scientific community as it can be used to generate intense, tunable THz and X-ray radiation beams. The “Advanced Generation of THz and X-ray” (AGTaX) collaboration was created to bring together different communities working on the simulation, generation and experimental...
Ms
Hannah Harrison
(University of Oxford)
30/09/2016, 09:30
Oral presentation
A study of the polarization of coherent Smith-Purcell Radiation (cSPr) has been carried out at the LUCX (KEK) facility using an 8 MeV electron beam. Two orthogonal polarizations of the radiation were measured and the degree of polarization was calculated. The experimental result was compared to simulation results calculated using a semi-analytical surface current model. Two dimensional scans...
Dr
Andrew Lancaster
(University of Oxford)
30/09/2016, 09:45
Preliminary intensity distributions for Smith-Purcell radiation generated by a grating with its period skewed with respect to the propagation direction of the particle beam will be presented. The results have been obtained using the well-established surface current model. An outline of the calculations will be described, along with qualitative descriptions of the radiation distributions...
Dr
Konstantin Lekomtsev
(Royal Holloway University of London)
30/09/2016, 10:00
In this report we present experimental investigations of the THz radiation generated from a corrugated capillary and a blank capillary with reflectors, using a femtosecond electron beam of LUCX accelerator at KEK, Japan. LUCX is capable of generating a train of 4 bunches each with 150 µm (500 fs) duration and 200 µm transverse size. We present measurements of the angular distributions of the...
Mr
Mikhail Shevelev
(KEK)
30/09/2016, 10:15
The coherent radiation generated by a short electron bunches is well studied and finds a broad application for different scientific communities. However, the improvement projects towards the implementation of the compact accelerator system providing the high-charge and ultra short electron bunches are still attractive and open up a new possibility of the high-brightness coherent radiation...
Dr
Alexander Aryshev
(KEK)
30/09/2016, 10:30
Intense THz radiation is extensively used for different applications including diffraction and spectroscopy [1, 2]. Modern approach to generate high power THz is based on ultra-short pulse compact accelerators [3, 4] or free-electron lasers [1]. However, an optimal mechanism for THz production is still under discussion. The aim of designing of a compact and tunable THz source with short pulse...
Dr
Gennady Naumenko
(Tomsk Polytechnic University)
30/09/2016, 10:45
Grating transition radiation (GTR), which is a backward radiation, emitted by electrons interacting with a diffraction grating was first observed at optical wavelength region at 1999 [1].
In this report we present the experimental investigation of spectral and orientation dependences of a coherent GTR (CGTR) in sub-THz wavelength region emitted by a 8 MeV electron at KEK LUCX facility. The...
