Title:
X-RAY TUBE
Document Type and Number:
WIPO Patent Application WO/2007/135812
Kind Code:
A1
Abstract:
An X-ray tube for irradiating X-rays, especially, an X-ray tube having a structure
suitable for irradiating X-rays over a wide range. An X-ray tube (1) comprises
a vacuum enclosure (5), an electron source including metal wires (7a, 7b, 7c)
having carbon based electron emission materials (6a, 6b, 6c) and arranged in
the vacuum enclosure (5) by being held, at the opposite ends thereof, by the vacuum
enclosure (5), a target material (15) provided in the vacuum enclosure (5) opposite
to the electron source for generating X-rays in response to incidence of electrons
from the electron source, a through hole (13) for taking out the X-rays generated
from the target material (15) to the outside and a silicon thin film (14) fixed
to the vacuum enclosure (5), and an extraction electrode (11) provided between
the electron source and the target material (15) on the inner surface (3a) of the
vacuum enclosure (5).
Inventors:
OKADA TOMOYUKI (JP)
FUJITA TORU (JP)
YAMAMOTO TOORU (JP)
NAKAMURA TATSUYA (JP)
FUJITA TORU (JP)
YAMAMOTO TOORU (JP)
NAKAMURA TATSUYA (JP)
Application Number:
PCT/JP2007/057571
Publication Date:
November 29, 2007
Filing Date:
April 04, 2007
Export Citation:
Assignee:
HAMAMATSU PHOTONICS KK (JP)
OKADA TOMOYUKI (JP)
FUJITA TORU (JP)
YAMAMOTO TOORU (JP)
NAKAMURA TATSUYA (JP)
OKADA TOMOYUKI (JP)
FUJITA TORU (JP)
YAMAMOTO TOORU (JP)
NAKAMURA TATSUYA (JP)
International Classes:
H01J35/06; H01J35/16
Foreign References:
| JP2005222950A | 2005-08-18 | |||
| JP2006086001A | 2006-03-30 | |||
| JP2003288853A | 2003-10-10 | |||
| JP2005346933A | 2005-12-15 | |||
| JP2005237779A | 2005-09-08 |
Attorney, Agent or Firm:
HASEGAWA, Yoshiki et al. (Ginza First Bldg.10-6, Ginza 1-chom, Chuo-ku Tokyo, JP)
Download PDF: