Radiant energy – Invisible radiant energy responsive electric signalling – Neutron responsive means
Patent
1998-04-15
2000-01-04
Hannaher, Constantine
Radiant energy
Invisible radiant energy responsive electric signalling
Neutron responsive means
2502692, 2504831, G01T 1202
Patent
active
060112662
ABSTRACT:
A sensor for simultaneously detecting neutrons and ionizing electromagnetic radiation comprising: a sensor for the detection of gamma radiation, the sensor defining a sensing head; the sensor further defining an output end in communication with the sensing head; and an exterior neutron-sensitive material configured to form around the sensing head; wherein the neutron-sensitive material, subsequent to the capture of the neutron, fissions into an alpha-particle and a .sup.7 Li ion that is in a first excited state in a majority of the fissions, the first excited state decaying via the emission of a single gamma ray at 478 keV which can in turn be detected by the sensing head; and wherein the sensing head can also detect the ionizing electromagnetic radiation from an incident radiation field without significant interference from the neutron-sensitive material. A method for simultaneously detecting neutrons and ionizing electromagnetic radiation comprising the steps of: providing a gamma ray sensitive detector comprising a sensing head and an output end; conforming an exterior neutron-sensitive material configured to form around the sensing head of the detector; capturing neutrons by the sensing head causing the neutron-sensitive material to fission into an alpha-particle and a .sup.7 Li ion that is in a first excited state in a majority of the fissions, the state decaying via the emission of a single gamma ray at 478 keV; sensing gamma rays entering the detector through the neutron-sensitive material; and producing an output through a readout device coupled to the output end; wherein the detector provides an output which is proportional to the energy of the absorbed ionizing electromagnetic radiation.
REFERENCES:
patent: 4829185 (1989-05-01), Cerff
patent: 4883956 (1989-11-01), Melcher et al.
patent: 5162095 (1992-11-01), Alegre et al.
patent: 5231290 (1993-07-01), Czirr et al.
patent: 5659177 (1997-08-01), Schulte et al.
Radiation Detection and Measurement, Glenn F. Knoll, John Wiley & Sons, 1989 p. 483, 523, 551.
Hannaher Constantine
Israel Andrew
Lockheed Martin Energy Research Corporation
LandOfFree
Apparatus and method for the simultaneous detection of neutrons does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for the simultaneous detection of neutrons , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for the simultaneous detection of neutrons will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1074423