Method and apparatus for detecting x-rays having improved...

Details Method and apparatus for detecting x-rays having improved... Method and apparatus for detecting x-rays having improved...

2008-01-07

2010-12-21

Porta, David P (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

C250S283000, C250S298000, C250S299000, C250S389000, C250S394000

Reexamination Certificate

active

07855365

ABSTRACT:
A method and apparatus, such as a spectrometer, are provided for facilitating the detection of an gamma signal in a manner that effectively discriminates the gamma signal from noise. A spectrometer may be provided which includes an gamma converter for converting gamma signals which impinge thereupon into corresponding pairs of electrons and positrons. The spectrometer also includes a deflector for separately deflecting the electrons and the positrons as well as electron and positron detectors for separately detecting the deflected electrons and positrons, respectively. As such, an gamma signal can be identified in instances in which the deflected electrons and positrons are detected in coincidence.

REFERENCES:
patent: 4731531 (1988-03-01), Handke
patent: 4954709 (1990-09-01), Zigler et al.
“Electromagnetic Spectrum -Introduction” NASA Goddard Space Flight Center, http://imagine.gsfc.nasa.gov/docs/science/know—I1/emspectrum.html, 1997-2010.

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