Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Reexamination Certificate
2005-03-08
2008-11-25
Porta, David P. (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
C250S370070
Reexamination Certificate
active
07456405
ABSTRACT:
A radiation measuring instrument implements an energy ratio technique that utilizes a ratio between a measured radiation count rate and a detected radiation dose rate to determine if an alarm should be signalled to an operator of the device of this invention. The radiation measuring instrument uses an “inorganic” scintillation or radiation detection material, such as a Thallium doped sodium iodide (NaI(TI)) material, which operates in relatively compact or small sizes to detect radiation. The radiation measuring instrument also uses a ratio of two measured parameters to detect gamma radiation from artificial (hidden) radioactive material where the parameters include (i.) a total number of counted or detected gamma particles and (ii.) a measured, detected, or otherwise derived gamma dose rate.
REFERENCES:
patent: 3609734 (1971-09-01), Svansson
patent: 3721824 (1973-03-01), Bristol
patent: 4266126 (1981-05-01), Mills, Jr.
patent: 4642463 (1987-02-01), Thoms
patent: 5124936 (1992-06-01), Pelletier et al.
patent: 5258926 (1993-11-01), Duftschmid et al.
patent: 7026627 (2006-04-01), Fowler et al.
patent: 2003/0212302 (2003-11-01), Rozenfeld et al.
patent: 2003/0213917 (2003-11-01), Menlove et al.
patent: 2005/0258373 (2005-11-01), Lacy
patent: 2006/0208154 (2006-09-01), Hughes et al.
Mahoud, Imbaby I., “Wide-Range Portable Dosimiter Based on Microcontroller” Feb. 24-26, 1998, Fifteenth National Radio Science Conference.
Iwatschenko-Borho Michael
Pijahn Ralf
Trost Norbert
Chapin IP Law LLC
Chapin, Esq. Barry W.
Igyarto Carolyn
Porta David P.
Thermo Fisher Scientific Inc.
LandOfFree
Portable radiation monitor methods and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Portable radiation monitor methods and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable radiation monitor methods and apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4047340