Radiant energy – Invisible radiant energy responsive electric signalling – Plural signalling means
Reexamination Certificate
2006-04-11
2006-04-11
Porta, David (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
Plural signalling means
C250S390120, C250S391000, C250S392000
Reexamination Certificate
active
07026627
ABSTRACT:
A portable survey instrument and methodology yield intensity of neutron radiation, intensity of gamma radiation, and a direction of impinging gamma radiation. The instrument uses a neutron detector surrounded by an essentially rectangular moderator with preferably four gamma ray detectors disposed symmetrically about the neutron detector and within the moderator. Material and dimensions of the moderator are selected so that the neutron measurement is equally sensitive to fast and thermal neutrons. The moderator also induces angular responses to the gamma ray detectors. Responses of the gamma ray detectors are combined to yield a parameter indicative of the angular position of a source. The survey instrument is portable and suited for hand held use.
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Burnham Jerry L.
Fowler, Jr. Fred E.
Wilson Robert D.
Delta Epsilon Instruments
Law Office of Tim Cook P.C.
Porta David
Rosenberger Frederick F.
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