Photomultiplier

Electric lamp and discharge devices – Photosensitive – Photomultiplier

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C313S533000, C250S367000

Reexamination Certificate

active

07659666

ABSTRACT:
The present invention relates to a photomultiplier that realizes significant improvement of response time properties with a structure enabling mass production. The photomultiplier comprises a sealed container, and, in the sealed container, a photocathode, at least one dynode set, a dynode unit including a part of insulating supporting members holding the one dynode unit, and a gain control unit are housed. The gain control unit has an insulating base plate, and the insulating base plate is integrally fixed with a control dynode and a final stage dynode that belong to each dynode set together with an anode. By the insulating base plate thus being clamped by the pair of insulating supporting members, the anode, the control dynode, and the final stage dynode constitute a part of an electron multiplier section.

REFERENCES:
patent: 2945144 (1960-07-01), Schmidt et al.
patent: 3849644 (1974-11-01), Ibaugh
patent: 4415832 (1983-11-01), Faulkner et al.
patent: 4456852 (1984-06-01), Faulkner et al.
patent: 4881008 (1989-11-01), Kyushima et al.
patent: 5077504 (1991-12-01), Helvy
patent: 5124551 (1992-06-01), Urakami et al.
patent: 5416382 (1995-05-01), L'Hermite
patent: 5438191 (1995-08-01), Kimura et al.
patent: 5532551 (1996-07-01), Kyushima et al.
patent: 5578891 (1996-11-01), Sakai et al.
patent: 5581158 (1996-12-01), Quazi
patent: 5598060 (1997-01-01), L'Hermite
patent: 5689152 (1997-11-01), Boutot et al.
patent: 5864207 (1999-01-01), Kume et al.
patent: 6927538 (2005-08-01), Ishizu et al.
patent: 7064485 (2006-06-01), Kimura et al.
patent: 7115854 (2006-10-01), Kato et al.
patent: 2003/0146697 (2003-08-01), Ishizu et al.
patent: 2004/0251417 (2004-12-01), Yamaguchi et al.
patent: 2005/0212421 (2005-09-01), Kimura et al.
patent: 57-194445 (1982-11-01), None
patent: 2005/091332 (2005-09-01), None
patent: 2005/091333 (2005-09-01), None
Hidehiro Kume et al., “Photomultiplier Tubes for BaF2/BGO Crystal Scintillators”, IEEE Transaction on Nuclear Science, Feb. 1986, pp. 364-369, vol. 33, No. 1.
T. Yamashita et al., “New Dual Rectangular Photomultiplier Tube For Positron Ct.” IEEE Catalog No. 82CHI751-7, International Workshop on Physics and Engineering in Medical Imaging, Mar. 15-18, 1982, pp. 209-211, Pacific Grove, California.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Photomultiplier 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, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photomultiplier will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4232658

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.