Pumping efficiency and lifetime of the4F3/2level of a neodymium ion in a liquid Nd3+: POCl3— SnCl4— UO22+laser-active medium upon pulsed irradiation by fission fragments in a BARS-6 reactor

Lapidus, V I; Dobrovol'skii, A F; D'yachenko, P.P.; Серегина, Е. А.; Тихонов, Г. В.

doi:10.1070/qe2003v033n06abeh002445

Cited by 10 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Interest in laser liquid is associated with the fact that because uranium is contained in the liquid in the form of solution, pumping efficiency for Nd 3+ upper laser level (relative to the fission energy in the LAEL) is approximately 5 -10 times higher as compared with gas laser and amounts, in accordance with experimental data (Lapidus et al 2003), to ~2%. Beside the above, lifetime of Nd 3+ upper laser level amounts to about 300 µm which is comparable with duration of the pumping pulse.…”

Section: Laser Characteristics Of the Okuyan Pilot Samplementioning

confidence: 55%

“…Refs. (Denezhkin et al 2015(Denezhkin et al , 2019 on the investigation of characteristics LAEL on the basis of high-temperature Cd-He-steam-gas mixture (transition 5s 22 D 5/2 -5p 2 P 3/2 CdII, l = 441.6 nm) which is of interest for space deployment of the OKUY-aN and studies (Lapidus et al 2003, Dyachenko et al 2016 on the investigation of the possibility to use POCl 3 -SnCl 4 -235 U 2+ -Nd 3+ laser liquid (transition 4 F 3/2 -4 I 11/2 Nd 3+ , l = 1.054 µm) as the active medium of the landbased OKUYaN laser unit must be noted here.…”

Section: Laser Characteristics Of the Okuyan Pilot Samplementioning

confidence: 99%

See 1 more Smart Citation

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

D'yachenko¹,

Zrodnikov²,

Kukharchuk³

et al. 2019

NUCET

View full text Add to dashboard Cite

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.

show abstract

Section: Laser Characteristics Of the Okuyan Pilot Samplementioning

confidence: 55%

Section: Laser Characteristics Of the Okuyan Pilot Samplementioning

confidence: 99%