Speaker
Dr.
Alexander Kubankin
(Belgorod National Research University)
Description
Pyroelectric crystals, such as LiNbO3 or LiTaO3 being under influence of temperature gradient produce electric field up to 106 kV/cm. It was experimentally confirmed that the crystal installed in the chamber with residual gas pressure about 1 mTorr could be used for generation of X-Ray radiation [1,2] with energy up to about 100 keV, as well as electrons [3] and neutrons with energy 2.45 MeV [4].
Due to the unique properties such as On/Off mode of operation and absence of radioactive materials such generators seems to be promising tool for calibration of neutrino and dark matter detectors. The experimental setup for the research and development of pyroelectric generators is presented.
References
[1]. Brownridge, J D.,“Pyroelectric x-ray generator,” Nature, 358, pp. 277-278 (1992). [2]. V.I. Nagaychenko, V.V. Sotnikov, B.I. Ivanov, A.M. Yegorov, A.V. Shchagin, J. Surf. Inv. X-ray, Synch. Neutron Tech. (Russia) 3, 81, (2007).
[3]. Brownridge, J. D., and Shafroth, S. M., “Self-focused electron beams produced by pyroelectric crystals on heating or cooling in dilute gases,” Appl. Phys. Lett., 79, pp. 3364-3366 (2001). [4]. B. Naranjo, J.K. Gimzewski, S. Putterman, Nature, 434, pp. 1115-1117 (2005).
| Presentation type | Section talk (10+5 min) |
|---|
Primary author
Dr.
Alexander Kubankin
(Belgorod National Research University)
Co-authors
Mr.
Alexander Chepurnov
(SINP MSU)
Dr.
Alexander Shchagin
(KIPT)
Mr.
Andrey Oleinik
(BelSU)
Mr.
Oleg Ivaschcuk
(BelSU)
