Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PHOTOMULTIPLIER TUBE
Document Type and Number:
WIPO Patent Application WO/2001/086691
Kind Code:
A1
Abstract:
A metal bypass (2), a glass light receiving plate (3) and stem plate (4) form a sealed container (5) for a photomultiplier tube. A piercing portion (20) provided at a one-end opening (A) of the bypass (2) is piercingly buried in the glass light receiving plate (3) to ensure a very high sealing performance at the joint between the bypass (2) and the light receiving plate (3). Since the piercing portion (20) provided on the bypass (2) extends steeply in the axial direction of the bypass (2), the piercing portion (20) can be buried as close as possible to a side surface (3c) of the light receiving plate (3), to thereby increase an effective utilization area of the plate (3) to nearly 100% and decrease a dead area of the plate (3) to as close as zero. Accordingly, the photomultiplier tube (1) can make compatible an increase in effective utilization area of the plate (3) with an ensured air-tightness between the plate (3) and the bypass (2).

Inventors:
SHIMOI HIDEKI (JP)
KYUSHIMA HIROYUKI (JP)
ATSUMI AKIRA (JP)
Application Number:
PCT/JP2000/002928
Publication Date:
November 15, 2001
Filing Date:
May 08, 2000
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HAMAMATSU PHOTONICS KK (JP)
SHIMOI HIDEKI (JP)
KYUSHIMA HIROYUKI (JP)
ATSUMI AKIRA (JP)
International Classes:
H01J40/14; H01J43/04; H01J43/18; H01J43/28; (IPC1-7): H01J43/28
Foreign References:
JP2000149860A2000-05-30
JPH11345587A1999-12-14
Other References:
See also references of EP 1282150A4
Attorney, Agent or Firm:
Koizumi, Shin (Yushima 3-chome Bunkyo-ku Tokyo, Yushima 3-chome Bunkyo-ku Tokyo, JP)
Download PDF: