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10 number 2005 year |
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1.
Title:
THE VELOCITY DISTRIBUTION FUNCTION OF IONS
IN THE NEAR-ELECTRODE LAYER OF A GAS DISCHARGE
Authors:
S.A. Maiorov.
Abstract:
2.
Title:
PROPAGATION OF FAST AVALANCHE ELECTRONS
IN NITROGEN AND HELIUM
Authors:
A.N. Tkachev, S.I. Yakovlenko.
Abstract:
3.
Title:
PHOTOLUMINESCENCE OF NANOCOMPOSITES BASED ON OPAL MATRICES
AND SILICON GELS DOPED WITH RARE EARTHS
Authors:
A.N. Artamonov, V.I. Burkov, A.G. Vitukhnovsky, V.S. Gorelik, S.N. Ivicheva, P.P. P. P. Sverbil, V.M. Skorikov.
Abstract:
4.
Title:
DECELERATION AND ACCELERATION OF ELECTRONS
IN A DENSE GAS SUBJECTED TO AN ELECTRIC FIELD
Authors:
A.N. Tkachev, S.I. Yakovlenko.
Abstract:
The electron propagation in a gas is simulated for the electron energy exceeding the gas-atom ${\bf K}$-shell excitation energy. The calculations show that in the absence of an external field the electron penetration depth into the gas heavier than nitrogen is limited first of all by elastic collisions with atomic nuclei. In the electron motion in an electric field, elastic collisions result in the lack of a well defined critical field strength for which the electron with a specified energy will accelerate continuously. Even if the field strength exceeds considerably the critical value, it is only part of the electrons that accelerate. Having undergone elastic collisions, the other electrons turn and, being decelerated by the field, lose their energy. The center of gravity of the group of electrons moves with a steady velocity even in a high field.
5.
Title:
INCREASE OF THE NEUTRON-DETECTION EFFICIENCY
IN AN IONIZATION-NEUTRON CALORIMETER
Authors:
A.P. Zhukov, G.T. Zatsepin, G.I. Merzon, R.A. Mukhamedshin, V.A. Ryabov, T.. Saito, N.M. Sobolevskii, V.A. Tsarev, A.P. Chubenko.
Abstract:
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