Frank Laboratory of Neutron Physics

Joint Laboratory Seminar

Leader – Shvetsov V.N.

Date and Time: Thursday, 29 April 2021, at 3:00 PM

Venue: Online seminar on Webex, Frank Laboratory of Neutron Physics

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Seminar topic: «Accelerator LUE-200. Yesterday, today, tomorrow»

Speaker: A. P. Sumbaev (VBLHEP)

Abstract:

The linear electron accelerator LUE_200 was designed and created as a driver for a booster-type neutron source with an integral neutron yield of ᷉ 10¹⁴ sec^-1, which determines the energy and power of the accelerated particle beam. The accelerator was put into operation in stages. 2009 – 2010 the physical start-up of the IREN facility was carried out as part of the first stage of the accelerator (one accelerating section, one klystron, one modulator). The first stage of the accelerator worked several thousand hours for the experiment at a cycle frequency of 10 – 25 Hz with a beam current of 1.5 – 2.0 A, duration ᷉ 100 nsec and an energy of 30 – 35 MeV (spectrum maximum). In 2016, the second accelerating section was installed and launched (+ 2nd klystron with modulator). As a result of the launch of the second stage of the accelerator (2016-2019), an increase in the energy of accelerated electrons to 70 MeV, and the average power of the electron beam to 0.6 kW was achieved. The problems of achieving design parameters and the possibility of developing an accelerator are considered. The plans for the development of the accelerator provide for an increase in the cyclicity of the accelerator up to 100-120 Hz, and the beam power up to 1.5 kW, which will make it possible to obtain up to 3 ∙ 10¹² sec^-1 neutrons on a non-multiplying W target.
The theses submitted for defense and the results included in the thesis for the degree of Doctor of Technical Sciences are presented for discussion.