№ - 0169 High-Intense Ion Sources for Isotope Separation

Full Title:	High-Intense Ion Sources for Isotope Separation
Technology Field(s):	FIR-ISO: Fission Reactors / Isotopes

Contributors

Mikhail I Martynov

Russian Research Center "Kurchatov Institute" (RRC KI) 1, Kurchatov sq., Moscow, 123182, Russia Phone: 7+095+1967807 Fax: 7+095+9430073 martm@wowa.net.kiae.su

Present Status of Research

Brief Description of Research

The electromagnetic method is the most universal among various methods of isotope separation. This method allows to separate isotopes of any elements practically. It has greatest factor of separation but it has low productivity and large energy cost of separation work unit. The last circumstance constrains to a considerable extent development of this method.

One of known ways to rise productivity of electromagnetic separation is increase of allowable entrant angle of ion beam is formed in ion source. It is enable to use ion beams of greater density. However it is required to change magnetic system configuration that it is difficult and expensive. Other approaches to increase electromagnetic separator productivity were proposed rather recently. It can be attained by increasing of ion source emission surface and by other organization of working process in ion source also. Both ways is resulted to increase of ion current. In the first way ion source optic with several emission slits is used and in the second way special design of discharge chamber and special mode of ion source operation is used.

The goal of this project is development of ion sources for electromagnetic separation of isotopes. They would have productivity in 2-3 times more used at the moment at conservation their sizes and electrical parameters. In the case of successful decision of this problem it would be possible to increase productivity of electromagnetic separators without enlargement of used energy and alterations their magnetic systems. It would allow reduce cost of isotopes for example isotopes used in medicine.

Legal Aspects: Patents ion sources for electromagnetic separation of isotopes has been approved in Russia.

Special Facilities:Existing electromagnetic separators will be used.

Scientific Papers There are no publications on this theme.

Foreign Collaborators

Dr. M.Bacal, Laboratoire de Physique des Milieux Ionises, Centre National de la Recherche Scientifique (France).

№ - 0170 Production of Amorphous Diamond-Like and Metallic Films

Full Title:	Production of Amorphous Diamond-Like and Metallic Films with the Preset Physical-Mechanical Properties
Technology Field(s):	MAT-SYN: Materials / Materials Synthesis and Processing PHY-PLS: Physics / Plasma Physics

Contributors

Dmitry Iosiphovich Dolgy	Institute of Reactor Technology and Materials / Russian Research Center «Kurchatov Institute» (IRTM RRC KI) 1, Kurchatov sq., Moscow, 123182, Russia Phone: 7+095+1969860 Fax: 7+095+1964589 alekseev@nw.oirtorm.net.kiae.su
Edward Borisovich Svirsky	Institute of Nuclear Fusion / Russian Research Center «Kurchatov Institute» (INF RRC KI) 1, Kurchatov sq., Moscow, 123182, Russia Phone: 7+095+1967040 Fax: 7+095+9430073 bark@qq.nfi.kiae.su

Present Status of Research

Brief Description of Research

Some methods of amorphous diamond-like film (ADLF) production with various preset physical-mechanical properties have been developed at RRC KI. They are Based on the implementation of: a) ion-plasma sputtering of pure graphite and its deposition from a gaseous phase under low pressure and temperature; b) film deposition from the plasma flux produced with a plasma accelerator, ACDE-type (accelerator with the closed electron drift and with the extended acceleration zone).

These techniques allow one to make the ADLF-coatings upon various backings, dielectric included. The produced films posses of high mechanical properties (hardness is 50 GPa, low friction coefficient, the surface quality is no worse than that of the backing) high chemical and corrosion resistance to aggressive media. The ADLF-coating implementation for protecting and strengthening the item surfaces increases their service life 5-10 times. Do to their unique properties, the ADLF-coatings found their application to the instrument engineering and to the medical industry.

At present, soma researches into an increase in the ADLF-coating rate, production of the films with a wide range of physical-mechanical properties (at different ratios between the diamond and graphite bonds), reduction stresses within films and an increase in the adhesion to various materials are being done at RRC KI. The researches in the production of multicomponent quasicrystalline structures possessing of unique properties.

Legal Aspects

The methods and devices for strengthening the item surfaces and for the ADLF-coatings are defended by patents:

V.M. Golyanov, A.N. Demidov. Author’s certificate No.411037. Bulletin of inventions, 29, 1974. Priority dated October, 28,1971

USA Patent 3840451 (1974)

GB Patent 1396987 (1975)

FRG Patent 2252343 (1977)

Japan Patent 52-42159 (1977)

France Patent 2157957 (1976)

Swiss Patent 582622(1976)

V.M. Golyanov, A.N. Demidov. Author’s certificate No.03701. . Bulletin of inventions, 15, 1978.

USA Patent 4049533 (1977)

GB Patent 1480564 (1975)

France Patent 2323774 (1979)

Swiss Patent 594742 (1979)

FRG Patent 2541719 (198)

M.V. Atamanov, A.N. Vesselovzorov et al. Method of strengthening the items made of metals and of their alloys. Russian Patent No.2070607. Priority from December, 25, 1992.

The works on the synthesis of diamond and introduction of amorphous diamond-like films (ADLF) into industry were awarded by D.I. Mendeleev Prize (1985) and by the State Prize (1987). The ACDE-plasma accelerator studies and their introduction into industry were awarded by the VDNKh medals and diplomas in 1977, 1987, as well as by the Kurchatov Prize in 1979, 1986, 1987.

Special Facilities

Some experimental and experimental-industrial facilities allowing one to make coatings upon large surfaces (> 200  200 mm²), at high uniformity, have been developed and produced at RRC KI. The coated area is limited by the dimension of a vacuum chamber.

Scientific Papers

V.M. Golyanov, V.G. Grigoriev, Reports of Academy of Sciences, biology series, 215, 1485 (1974).

V.M. Golyanov, L.A. Yelesin, M.N. Mikheeva. Pis’ma JETP, 18, 369 (1973).

Barkalov E.E.,Veselovsorov A.N., Guseva M.I.Pogorelov A.A., Pokrovsky I.B. Application of plasma accelerators, ACDE-type, for ion cleaning, etching, and modification of product surfaces. 2-nd German-Russian conference on electric propulsion engines and their technical applications. Russia, Moscow, July 16-21, 1993.

A.P. Dementjev and M.N. Petukhov. Comparrison of X-ray-exited Auger lineshapes of grafite, polyethylene and diamond. Surface and interface analysis, vol. 24, 517-521 (1996).

A.P. Dementjev, M.N. Petukhov. The roles of H and O atoms in diamond growth. Diamond and Related Materials 6 (1997) 486-489.

Foreign Collaborators

Dr. Marthe Bacal, Laboratoire De Physique Des Milieux Ionises Ecole Polytechnique (France).

№ - 0171 Crystalline Meter of Maximum Temperature (CMMT)

Full Title:	Crystalline Meter of Maximum Temperature (CMMT)
Technology Field(s):	INS-MEA: Instrumentation / Measuring Instruments

Contributors

Andrei Sartori

Russian Research Center "Kurchatov Institute" (RRC KI) 1, Kurchatov sq., Moscow, 123182, Russia Phone: 7+095+1967259 Fax: 7+095+1967262 postmaster@comdep.kiae.su

Present Status of Research

Brief Description of Research

The special types of carbide was used as the matter of CMMT. The crystals was irradiated and "charged" before use. They keep the measuring properties for a long time at room temperature. After heating the crystal releases the part of internal energy and changes in crystal structure will be detected by usual X-ray control methods. The temperature of object is determined from the plot of dependence of lattice parameters upon temperature and heating time.

CMMT keeps information on the maximum sample temperature in crystal structure level. After measuring has been done the CMMT should be extracted from the parts of machines and tested. CMMT is non-permanent (single-use) meter.

CMMT is most effective in measuring temperature of rotating or moving parts of machines: shafts, discs, aero-space turbines, pistons, cutting edges, balls, rollers, etc., where conventional measurement is difficult or impossible.

Legal Aspects

Certificates in Russia.

Special Facilities

Semi-industrial production CMMT, wide application area:

- range of measuring temp., °C 100-1400

- accuracy (if the heating time is known with an accuracy of ±10%) °C: stationary conditions less ±10 variable conditions less ±15

- heating duration in test, s 100-1000000

- relative accuracy if the heating time is constant ±(3-5)%

- size, mm: standard crystal sensor length - 5.0, diam. - 1.0 micro crystal sensor 0.30.30.3

- maximum rate of CMMT heating 100 °C/s

- interpretation time a few minutes

- resistant at any aggressive media.

Scientific Papers Upon request.