PHOTOMULTIPLIER AND RADIATION DETECTING APPARATUS

Title:

PHOTOMULTIPLIER AND RADIATION DETECTING APPARATUS

Document Type and Number:

WIPO Patent Application WO/2007/099960

Kind Code:

A1

Abstract:

A vacuum container of a photomultiplier is constituted by airtightly bonding a light receiving surface plate (13) on one side end of a side tube (15), and a stem (29) on the other side end through a tube-like member (31). In the vacuum container, a photoelectric surface (14), a focusing electrode (17), dynodes (Dy1-Dy12), an extracting electrode (19) and an anode (25) are arranged. An exhaust tube (40) is connected to the stem (29) at the center. The exhaust tube (40) is provided with an outer tube (41) and an inner tube (43), which are coaxially arranged and connected each other on the side of the stem (29). The outer tube (41) has excellent adhesiveness with the stem (29), and since the inner tube (43) is thin and a small stress is applied when being cut, bonding with the vacuum container is not deteriorated when sealing the exhaust tube (40).

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Inventors:

SHIMOI HIDEKI (JP)
KYUSHIMA HIROYUKI (JP)

Application Number:

PCT/JP2007/053647

Publication Date:

September 07, 2007

Filing Date:

February 27, 2007

Export Citation:

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Assignee:

HAMAMATSU PHOTONICS KK (JP)
SHIMOI HIDEKI (JP)
KYUSHIMA HIROYUKI (JP)

International Classes:

H01J43/28; G01T1/20; H01J43/22

Foreign References:

JP2000149862A	2000-05-30
JP2001357803A	2001-12-26
JPS60215585A	1985-10-28
JPH05290793A	1993-11-05
JP2005011592A	2005-01-13

Other References: