Patenton — panteon of patents

(19)

RU

(11)

2 119 688

(13)

C1

(51)

IPC

(21) (22)

Application

97103166/25, 1997-03-04

(22)

Actual filing date

1997-03-04

(45)

Published

1998-09-27

(72)

Inventor

Shevchenko V.G.Karrask M.P.Nesterenko A.P.Mednikov A.K.Mochenov M.I.Chumachenko G.A.

(73)

Holder

Gosudarstvennoe Predprijatie Leningradskaja Atomnaja Ehlektrostantsija Im.V.I.Lenina

SILICON DECONTAMINATION TECHNIQUE Russian patent published in 1998 - IPC

Abstract RU 2119688 C1

FIELD: nuclear engineering; decontamination and etching of single-crystalline nuclei-doped silicon. SUBSTANCE: silicon surface is treated with alkali solution of alkali metal persulfate. Proportion of components in decontaminating solution is as follows, g/l: XOH - 10-100; X2S2O8 - 0.5-5, where X is alkali metal. Proposed technique enables treatment of single-crystalline nuclei-doped silicon with decontamination factor up to 100 (residual contamination of surface lower than 0, 01 Kb/sq.cm). EFFECT: improved decontamination efficiency. 12 ex, 1 tbl

Similar patents RU2119688C1

Title Year Author Number
METHOD FOR RECOVERING LIQUID RADIOACTIVE WASTES OF NUCLEAR POWER PLANTS 1997
  • Lebedev V.I.
  • Shmakov L.V.
  • Tishkov V.M.
  • Cheremiskin V.I.
  • Gribanenkov S.V.
  • Fedotov V.D.
 RU2136065C1
METHOD FOR DECONTAMINATING INNER SURFACES OF NUCLEAR REACTOR EQUIPMENT 1998
  • Lebedev V.I.
  • Prozorov V.V.
  • Garusov Ju.V.
  • Shmakov L.V.
  • Nesterenko A.P.
  • Tishkov V.M.
  • Chvatov V.N.
  • Busyrev V.L.
 RU2126182C1
METHOD FOR DECONTAMINATING COMMERCIAL OIL FROM RADIOACTIVE IMPURITIES 1997
  • Larin Eh.P.
  • Chvatov V.N.
  • Petrov A.G.
  • Soldatkin A.V.
  • Gribanenkov S.V.
  • Pivovarov V.P.
 RU2125745C1
SURFACE-CONTAMINATED METALS DEACTIVATING METHOD 1995
  • Kurnosov V.A.
  • Khitrov Ju.A.
  • Eperin A.P.
  • Shmakov L.V.
  • Aniskin Ju.N.
  • Feofanov V.N.
  • Pichurin S.G.
 RU2078387C1
METHOD FOR DECONTAMINATING CONTAMINATED STEEL SURFACES 1998
  • Kurnosov V.A.
  • Khitrov Ju.A.
  • Shmakov L.V.
  • Lebedev V.I.
  • Aniskin Ju.N.
  • Feofanov V.N.
  • Doil'Nitsyn V.A.
 RU2147780C1
METHOD OF HARDENING RADIOACTIVE CONCENTRATES OF EXHAUSTED DETERGENT SOLUTIONS AT NUCLEAR POWER STATIONS 1997
  • Gribanenkov S.V.
  • Chernikov O.G.
  • Petrov A.G.
  • Tishkov V.M.
  • Pankratov V.N.
  • Olejnik M.S.
 RU2116681C1
METHOD FOR DECONTAMINATING GAMMA-RAY SOURCE CAPSULES 2001
  • Shevchenko V.G.
  • Zaika V.I.
  • Mikhajlov A.I.
  • Tishkov V.M.
  • Busyrev V.L.
  • Kozyk M.P.
  • Dmitriev V.V.
 RU2196363C2
METHOD OF PROCESSING LIQUID RADIOACTIVE WASTES 1997
  • Lebedev V.I.
  • Shmakov L.V.
  • Kurnosov V.A.
  • Cheremiskin V.I.
  • Tishkov V.M.
  • Shvedov A.A.
 RU2116682C1
RADIOACTIVE SLUDGE SOLIDIFICATION PROCESS 1996
  • Eperin A.P.
  • Beljanin L.A.
  • Gribanenkov S.V.
  • Shvedov A.A.
  • Tishkov V.M.
  • Zemskov A.A.
 RU2106704C1
METHOD FOR DECONTAMINATING WATER-COOLED REACTOR CIRCUITS 1999
  • Lebedev V.I.
  • Garusov Ju.V.
  • Prozorov V.V.
  • Moskovskij V.P.
  • Karrask M.P.
  • Tishkov V.M.
  • Cheremiskin V.I.
 RU2169957C2

RU 2 119 688 C1

Authors

Shevchenko V.G.

Karrask M.P.

Nesterenko A.P.

Mednikov A.K.

Mochenov M.I.

Chumachenko G.A.

Dates

1998-09-27—Published

1997-03-04—Filed

download Download PDF read Similar patents