Conveners
3. Parametric X-Radiation
- Junji Urakawa (KEK)
Alexander Shchagin
(Kharkov Institute of Physics and Technology)
08/09/2015, 09:00
3. Parametric X- Radiation
Invited
A.V. Shchagin
Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine
Belgorod State University, Belgorod 308015, Russia
The parametric X-ray radiation (PXR) is considered as a result of the diffraction in a crystal of virtual photons associated with relativistic charged particle moving through the crystal. Formulas for PXR Fresnel coefficients are obtained in kinematic...
Andrei Benediktovitch
(Belarusian State University)
08/09/2015, 09:30
3. Parametric X- Radiation
Oral
The operation of synchrotron x-ray light sources and free electron lasers opened new era in the investigation of matter on Angstrom lengthscale with fs time resolution. However, need for GeV electron accelerators and hundreds meter long undulator modules results in high construction, which makes the existing facilities extremely overbooked. In recent years there were investigated several...
Sergey Blazhevich
(Belgorod National Research University)
08/09/2015, 09:45
3. Parametric X- Radiation
Oral
Diffracted transition radiation (DTR) generated by divergent beam of relativistic electrons crossing a single-crystal plate in different (Laue, Bragg) scattering geometry have been considered for general case of asymmetric reflection of electron coulomb field relative to the entrance target surface. The expressions for spectral-angular density of DTR and parametric X-ray Radiation (PXR) are...
Dr
Alexander Kubankin
(Belgorod National Research University)
08/09/2015, 10:00
3. Parametric X- Radiation
Oral
The characteristics of Parametric X-ray radiation (PXR) from crystalline and polycrystalline targets (in the last case also called polarization bremsstrahlung (PB)) are well studied. An important task to be performed in this field is the measurement of the radiation spectral-angular characteristics from textured polycrystalline targets because such interaction represents the transition between...
Prof.
Igor Vnukov
(Belgorod National Research University, 14 Studencheskaya str., 308007 Belgorod, Russia)
08/09/2015, 10:15
3. Parametric X- Radiation
Oral
The authors of the papers [1,2] proposed to measure the transverse size of an electron beam using the PXR spatial distribution at short distances between a crystalline target and a detector. The experiment described in Ref. [3] was performed with the 855 MeV electron beam of the MAMI-B microtron and a 50 μm thick silicon crystal (100) acting as target, which was oriented under a Bragg angle of...
Vahan KOCHARYAN
(Institute of Applied Problems of Physics of NAS RA, Yerevan, Armenia, National Research Tomsk Polytechnic University, Tomsk, Russia)
08/09/2015, 10:30
3. Parametric X- Radiation
Oral
This work is devoted to investigations of PXR which is generated by 20-50 MeV electrons in the X-cut quartz single crystal at the presence of the temperature gradient. For this propose the beam line LEA-50 (YerPhI) has been constructed with the beam spot diameter of 1 mm, the beam energy spread up to 1%, the beam current up to 0.1 $\mu$A.
At the first stage we have investigated X-ray...
Alexandr Savchenko
(National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))
08/09/2015, 10:45
3. Parametric X- Radiation
Oral
Some years ago parametric X-ray radiation (PXR) was suggested as a good tool for bunch diagnostic[1], and recently this method was confirmed experimentally[2]. In the theory of PXR there exist two main approaches, kinematic and dynamical ones. The dynamical theory of PXR for divergent beams was suggested in paper[3]. In this article the Gaussian distribution was used to describe the divergence...
