ELECTRON BEAM DETECTOR AND ELECTRON TUBE

Title:

ELECTRON BEAM DETECTOR AND ELECTRON TUBE

Document Type and Number:

WIPO Patent Application WO/2005/027180

Kind Code:

A1

Abstract:

An insulating tube (9) has one end and the other end. An avalanche photodiode (APD) (15) is disposed outside the one end of the insulating tube (9). The other end of the insulating tube (9) is hermetically connected to an outside flange through a stem inner wall (61). Capacitors (C1, C2) electrically connected to the APD (15) are provided inside the insulating tube (9) and serve to remove the DC current from the signal generated by the APD (15) when it detects electrons. Since the capacitors (C1, C2) are provided inside the insulating tube (9), the response of the output signal is prevented from degrading.

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Inventors:

KYUSHIMA HIROYUKI (JP)
SUYAMA MOTOHIRO (JP)
KIMURA SUENORI (JP)
NEGI YASUHARU (JP)
KAWAI YOSHIHIKO (JP)
FUKASAWA ATSUHITO (JP)

Application Number:

PCT/JP2004/013132

Publication Date:

March 24, 2005

Filing Date:

September 09, 2004

Export Citation:

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Assignee:

HAMAMATSU PHOTONICS KK (JP)
KYUSHIMA HIROYUKI (JP)
SUYAMA MOTOHIRO (JP)
KIMURA SUENORI (JP)
NEGI YASUHARU (JP)
KAWAI YOSHIHIKO (JP)
FUKASAWA ATSUHITO (JP)

International Classes:

G01J1/42; G01T1/24; G01T1/28; H01J1/35; G01J1/02; H01J37/244; H01J40/14; H01J43/12; H01J43/16; H01J43/30; (IPC1-7): H01J40/14; H01J37/244; G01T1/28; G01J1/02

Foreign References:

JPH09297055A	1997-11-18
JPH0628997A	1994-02-04
JPH09264964A	1997-10-07
JPS6199356U	1986-06-25

Other References: