Problem of nuclear-laser power engineering and methods of their solution

• Published in: Nuclear energy and technology 2019-09, Vol.5 (3), p.257-263
• Main Authors: Dyachenko, Petr P., Zrodnikov, Anatoly V., Kukharchuk, Oleg F., Suvorov, Alexey A.
• Format: Article
• Language: English
• Subjects: Conjugation; Direct conversion; Fast neutrons; Ignition; Lasers; Nuclear fission; Nuclear pumped lasers; Nuclear reactors; Phase conjugation; Quantum amplifiers; Thermal neutrons
• ISSN: 2452-3038; 2452-3038
• DOI: 10.3897/nucet.5.46381

The concept of a high power reactor-laser system based on a nuclear pumped optical quantum amplifier (OKUYaN) was formulated at IPPE in the mid-1980-ies. The idea amounted to the use of wide-aperture OKUYaN as an amplifier within the already well-known “master laser – two-pass amplifier with phase conjugation” scheme. The structure of such an amplifier includes a system of two neutron-coupled units – an ignition reactor (RB) and a nuclear pumped laser amplifier (LB). The ignition unit is a compact multi-core pulsed fast neutron reactor. The laser amplifier unit operates on thermal neutrons and, with regard to the neutronics, it is a subcritical booster zone of the ignition reactor unit. Unique reactor-laser complex incorporating demonstration sample of a pulsed reactor-laser system based on OKUYaN (test facility “Stand B”) having no analogues anywhere in the world, was developed and put into operation at IPPE in 1999 for the purpose of substantiation of basic principles of the OKUYaN concept and demonstration of the possibility of its practical implementation, as well as verification of calculation codes and development of relevant equipment elements. Problems overcome in the development and construction of “Stand B” test facility, the choice and justification of the neutronics and laser characteristics of the OKUYaN demonstration sample are discussed in the present paper. Provided are the results of a detailed computational-experimental study of the demonstration sample characteristics, the data from systems studies of direct conversion of nuclear fission energy into laser radiation energy in complex reactor-laser devices and the results of examination of prospects for the development of nuclear-laser power engineering.