X-RAY TUBE MANUFACTURING METHOD - HAMAMATSU PHOTONICS KK

Title:

X-RAY TUBE MANUFACTURING METHOD

Document Type and Number:

WIPO Patent Application WO/1999/028941

Kind Code:

A1

Abstract:

An X-ray tube is temporarily assembled by providing a protruded brazing filler material (12A) vertically set on a first brazing filler material (A) between a stem (3) and a bulb (2) and moreover providing a second brazing filler material (B) between the bulb (2) and an output window (4). The temporary assembly is brought into a vacuum brazing oven (P). Because a gap (K) is formed between the stem (3) and the bulb (2) by the protruded brazing filler material (12A), it is possible to evacuate the bulb (2) through the gap (K). Thereafter, the inside of the vacuum brazing oven (P) is set to a desired temperature to fuse the first and second brazing filler materials (A, B) and bond and fix the stem (3) and the output window (4) to the bulb (2). Thus, it is possible to complete the brazing assembling work while keeping the inside of a sealing vessel (7) in a high vacuum state in the vacuum brazing oven (P) without providing an exhaust tube to the stem (3).

Inventors:

INAZURU TUTOMU (JP)

Application Number:

PCT/JP1998/005485

Publication Date:

June 10, 1999

Filing Date:

December 04, 1998

Export Citation:

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Assignee:

HAMAMATSU PHOTONICS KK (JP)
INAZURU TUTOMU (JP)

International Classes:

H01J9/26; H01J9/32; H01J9/34; H01J9/385; H01J9/40; H01J35/02; H01J35/08; H01J35/14; (IPC1-7): H01J9/26; H01J35/16

Foreign References:

JPH09180660A	1997-07-11
JPH09180630A	1997-07-11
JPS61294737A	1986-12-25

Other References: