Radiant energy – Optical liquid level sensors
Reexamination Certificate
2006-10-24
2006-10-24
Gabor, Otilia (Department: 2884)
Radiant energy
Optical liquid level sensors
C250S269400, C250S390010, C250S370050
Reexamination Certificate
active
07126148
ABSTRACT:
A system for detecting neutron radiation. A liquid cocktail mixture comprised of a neutron absorber and a scintillator is housed in a Teflon® tube having a mirror at one end of the tube and a windowed portal at the other end of the tube. Neutrons that penetrate the tube react with the neutron absorber producing ionization that excites a scintillator to produce photons. A photo-multiplier tube is coupled with the windowed portal for receiving photons and converting the photons to electrical signals. A processing device is coupled to the photo-multiplier output for receiving and analyzing the electrical signals so as to provide a measurement pertaining to the presence and relative strength of neutron radiation. The tube can be adapted to function as a portable survey instrument. Alternatively, the tube can be stretched to cover large apertured areas. In such implementations a wavelength shifter is employed to convert light emitted to another wavelength giving a multiplier effect necessary for long light guides.
REFERENCES:
patent: 3233103 (1966-02-01), Aoki
patent: 3372127 (1968-03-01), Thomas, Jr.
patent: 3470390 (1969-09-01), Lin
patent: 3573220 (1971-03-01), Benson
patent: 3999070 (1976-12-01), Tarkkanen
patent: 4262202 (1981-04-01), Cusano et al.
patent: 4415808 (1983-11-01), Cusano et al.
patent: 4620939 (1986-11-01), Maeda et al.
patent: 4975222 (1990-12-01), Yoshino et al.
patent: 5095099 (1992-03-01), Parkinson et al.
patent: 5514870 (1996-05-01), Langenbrunner
patent: 5606638 (1997-02-01), Tymianski
patent: 5698397 (1997-12-01), Zarling et al.
patent: 5734166 (1998-03-01), Czirr
patent: 2003/0175874 (2003-09-01), Baker et al.
patent: 2003/0226971 (2003-12-01), Chandross et al.
patent: 2005/0135535 (2005-06-01), Wallace
patent: 998117 (1965-07-01), None
patent: 960448 (1974-06-01), None
patent: 405333158 (1993-12-01), None
Large Area Imaging Detector for Neutron Scattering Based on Boron-Rich Liquid Scintillator, D. Vartsky and M.B. Goldberg, et al., Nucl. Instr. & Method A, Jul. 2002.
Neutron Counting, Detector ApplicationsInformation Note, Bicron, www.bicron.com, Mar. 1997.
Research Program of the TEXONO Collaboration: Status and Highlights, Wong and Li, Mar. 8, 1001, 1st NCTS Workshop on Astro-Particle Physics, Taiwan, Dec. 2001.
A Feasibility Study of Boron-Loaded liquid Scintillator for the Detection of Electron Anti-Neutrinos, SC Wang, et al. Oct. 20, 1998, Nuclear Instr. and Methods in Physics Research A 432 (1999) 111-121.
Ko Harvey W.
Murray George M.
Southard Glen
Fasulo, II Albert J.
Gabor Otilia
Sung Christine
The Johns Hopkins University
LandOfFree
Neutron detection based on boron activated liquid scintillation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Neutron detection based on boron activated liquid scintillation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Neutron detection based on boron activated liquid scintillation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3651095