ELECTRON TUBE - HAMAMATSU PHOTONICS KK

Title:

ELECTRON TUBE

Document Type and Number:

WIPO Patent Application WO/2005/027179

Kind Code:

A1

Abstract:

A photoelectron surface (11) is formed in a predetermined area of the inner wall of an enclosure (2) of an electron tube (1). An avalanche photodiode (APD) (15) is disposed inside the enclosure (2) and surrounded by a cover (71) and a tubular inner wall portion (72). A manganese bead (17) and an antimony bead (19) serving as evaporation sources are disposed outside and near the tubular inner wall portion (72), surrounded by a tubular outer wall portion (74), and used to produce a metal vapor and to serve as materials for forming the photoelectric surface (11). Thanks to the cover (71) and the inner and outer wall portions (72, 74), the metal vapor is prevented from depositing on the APD (15) and on unwanted portions inside the electron tube (1) during the formation of the photoelectric surface (11).

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WO/1996/015546	METHOD AND APPARATUS FOR CONTROLLING LAMP INTENSITY
WO/2022/038867	PHOTOELECTRIC-SURFACE ELECTRON SOURCE

Inventors:

NEGI YASUHARU (JP)
UCHIYAMA ATSUSHI (JP)
EGAWA YASUYUKI (JP)
KYUSHIMA HIROYUKI (JP)
KIMURA SUENORI (JP)
SUYAMA MOTOHIRO (JP)

Application Number:

PCT/JP2004/013131

Publication Date:

March 24, 2005

Filing Date:

September 09, 2004

Export Citation:

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Assignee:

HAMAMATSU PHOTONICS KK (JP)
NEGI YASUHARU (JP)
UCHIYAMA ATSUSHI (JP)
EGAWA YASUYUKI (JP)
KYUSHIMA HIROYUKI (JP)
KIMURA SUENORI (JP)
SUYAMA MOTOHIRO (JP)

International Classes:

H01J40/16; H01J9/233; H01J40/04; H01J40/06; H01J40/14; (IPC1-7): H01J40/04; H01J40/14; H01J9/233

Foreign References:

JPH02288145A	1990-11-28
JPH09297055A	1997-11-18
JPH08148114A	1996-06-07
JPH11102658A	1999-04-13
JPS4619162Y1	1971-07-03
JPH02288145A	1990-11-28
JPH06318447A	1994-11-15
JPH09297055A	1997-11-18
EP0805478A2	1997-11-05
FR2646288A1	1990-10-26

Other References: