BULLETIN OF THE LEBEDEV PHYISICS INSTITUTE
P.N.Lebedev Physics Institute of the Russian Academy of sciences

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1. Title:
THERMAL EXPANSION OF THE HTSC SYSTEM Bi2Sr2−xLaxCuO6: THE EFFECT OF MAGNETIC FIELD AND DOPING
Authors:
N.V. Anshukova, A.I. Golovashkin, L.I. Ivanova, I.B. Krynetskii, A.P. Rusakov.



Abstract:


2. Title:
SIMPLE DUAL-STAGE METHOD OF COOLING IN THE REGION OF ??-POINT OF He4: SCHEME AND POSSIBLE APPLICATIONS
Authors:
A.I. Golovashkin, V.M. Mishachev, A.M. Tskhovrebov, I.V. Berlov, G.N. Izmailov.



Abstract:


3. Title:
CLASSIFICATION BY OPTICAL PROPERTIES AND CONICAL REFRACTION IN MEDIA WITH NON-CUMMUTING PERMITTIVITY AND PERMEABILITY TENSORS
Authors:
N.A. Zhura.



Abstract:


4. Title:
SUPERSONIC ION FLOW IN EXPERIMENTS WITH PLASMA-DUST STRUCTURES
Authors:
S.A. Maiorov.



Abstract:
The velocity distribution function of ions in gas discharges was analyzed with allowance for the resonant ion charge exchange on buffer gas atoms and collisions due to atom polarization in the ion field. It was obtained that under conditions typical of experiments with dust structures in plasma, because of ion-atom collisions the velocity distribution of ions is characterized by the thermal velocity comparable with the velocity of directed motion, which makes impossible the existence of supersonic regime with Mach numbers greater than two.


5. Title:
LIGHT AMPLIFIER/CONVERTER BASED ON TERBIUM SALICYLATE
Authors:
L.S. Lepnev, A.A. Vashchenko, A.G. Vitukhnovskii, S.V. Eliseeva, O.V. Kotova, N.P. Kuzmina.



Abstract: