Speaker
Vahan KOCHARYAN
(Institute of Applied Problems of Physics of NAS RA, Yerevan, Armenia, National Research Tomsk Polytechnic University, Tomsk, Russia)
Description
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 diffraction by the quartz single crystal in Laue geometry influenced by the temperature gradient using the beam of X-ray tube radiation. It has been experimentally shown that intensity of the reflected beam depends on the temperature gradient value and can be increased 2 orders at least. It is shown that by means of the temperature gradient impact it is possible to separate a beam with high angular and spectral width from the white X-ray tube spectrum, to change the direction of reflection and to tune the focus distance.
Author
Prof.
Alpik Mkrtchyan
(Institute of Applied Problems of Physics of NAS RA, Yerevan, Armenia, National Research Tomsk Polytechnic University, Tomsk, Russia)
Co-authors
Alexander Potylitsyn
(National Research Tomsk Polytechnic University, Tomsk, Russia)
Dr
Alexander Vagner
(National Research Tomsk Polytechnic University, Tomsk, Russia)
Alexey Gogolev
(Tomsk Polytechnic University)
Artak Mkrtchyan
(Institute of Applied Problems of Physics of NAS RA, Yerevan, Armenia)
Artem Novokshonov
(National Research Tomsk Polytechnic University, Tomsk, Russia)
Artem Vukolov
(National Research Tomsk Polytechnic University, Tomsk, Russia)
Artur Movsisyan
(Institute of Applied Problems of Physics of NAS RA, Yerevan, Armenia)
Vahan KOCHARYAN
(Institute of Applied Problems of Physics of NAS RA, Yerevan, Armenia, National Research Tomsk Polytechnic University, Tomsk, Russia)
Valery NIKOGHOSYAN
(A. Alikhanian National Laboratory, Yerevan, Armenia)
