Electric lamp and discharge devices – Photosensitive – Photomultiplier
Patent
1994-04-28
1996-07-02
Patel, Nimeshkumar D.
Electric lamp and discharge devices
Photosensitive
Photomultiplier
313532, 313537, 313541, 313544, 313103CM, 250214VT, H01J 4306
Patent
active
055325513
ABSTRACT:
A photomultiplier has a focusing electrode plate for supporting focusing electrodes, provided between a photocathode and a dynode unit. Since the focusing electrode plate has holding springs which are integrally formed with the focusing electrode plate, resistance-welding becomes unnecessary to prevent field discharge. A concave portion is formed in a main surface of the focusing electrode plate to arrange an insulating member sandwiched between the focusing electrode plate and the photoelectron incidence side of the dynode unit and partially in contact with the concave portion. With this structure, discharge between the focusing electrode plate and the dynode unit can be prevented.
REFERENCES:
patent: 4446401 (1984-05-01), Faulkner et al.
patent: 4577137 (1986-03-01), Kaiser
patent: 4963113 (1990-10-01), Muramatsu
patent: 4999540 (1991-03-01), L'hermite
patent: 5126629 (1992-06-01), Chopy
Doutot et al, "Mulitanode Photomultiplier for Detection and Localization of Low Light Level Events", Paper Presented At Nuclear Science Symposium, Washington, Oct. '86.
Atsumi Akira
Hasegawa Yutaka
Kawano Eiichiro
Kuroyanagi Tomihiko
Kyushima Hiroyuki
Hamamatsu Photonics K.K.
Patel Nimeshkumar D.
LandOfFree
Photomultiplier for cascade-multiplying photoelectrons does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Photomultiplier for cascade-multiplying photoelectrons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photomultiplier for cascade-multiplying photoelectrons will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1508875