Radiant energy – Invisible radiant energy responsive electric signalling – Ultraviolet light responsive means
Patent
1987-06-30
1989-04-18
LaRoche, Eugene R.
Radiant energy
Invisible radiant energy responsive electric signalling
Ultraviolet light responsive means
2503581, G01F 2300
Patent
active
048233684
ABSTRACT:
A photoelectron counter in an open detection chamber in which photoelectrons emitted from a solid surface by a photon irradiation energy are counted, is arranged so as to suppress background noise which produces a false count rate due to photoelectrons which are emitted from solid surfaces outside the subject when scattered rays have reached and irradiated the same surface. The counter uses one or more of options including a film or coating formed with a thickness which is less than several .mu.m thickness on parts which are subject to scattered rays incident from the subject, a ray screen for interrupting scattered rays from entering into the detection chamber and/or a center guard provided at the front part of the detector to enable nearby measurement and while interrupting scattered rays.
REFERENCES:
patent: 4590376 (1986-05-01), Smith
patent: 4640626 (1987-02-01), Schmid et al.
patent: 4652757 (1987-03-01), Carver
patent: 4670710 (1987-06-01), Beha et al.
patent: 4721910 (1988-01-01), Bokor et al.
patent: 4740730 (1988-04-01), Uda et al.
Ishida Hiroshi
Kouno Chikara
Tomioka Yukio
Uda Masayuki
Yamauchi Yukio
LaRoche Eugene R.
Mis David
Rikagaku Kenkyujyo
LandOfFree
Open counter for low energy electron detection with suppressed b does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Open counter for low energy electron detection with suppressed b, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Open counter for low energy electron detection with suppressed b will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2400905