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2 079 172

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IPC

(21) (22)

Application

94003483/25, 1994-01-31

(22)

Actual filing date

1994-01-31

(45)

Published

1997-05-10

(72)

Inventor

Aleshchenko A.A.Gorbul' B.N.Karlov Ju.K.Chashchin S.B.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Zavod Khimkontsentratov"

DEVICE FOR MEASURING THICKNESS OF FUEL ELEMENT CLADDING Russian patent published in 1997 - IPC

Abstract RU 2079172 C1

FIELD: nondestructive tests of nuclear reactor fuel elements by radiometric method with cladding made in the form of three-layer tubes of different configuration. SUBSTANCE: cladding thickness is measured by using reverse beta-radiation method. Device has guides with carriage, clamp for holding fuel element, fuel element drive, and measuring transducer. The latter has small-sized beta-radiation source and scintillation detector connected to recording equipment. Detector is, essentially, eulitine monocrystal with optical filter at output. Eulitine monocrystal is shaped as truncated cone with spherical end coated with aluminium layer. EFFECT: facilitated inspection procedure. 2 cl, 2 dwg

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RU 2 079 172 C1

Authors

Aleshchenko A.A.

Gorbul' B.N.

Karlov Ju.K.

Chashchin S.B.

Dates

1997-05-10—Published

1994-01-31—Filed

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