Boots – shoes – and leggings
Patent
1979-06-25
1981-03-24
Alkinson, Charles E.
Boots, shoes, and leggings
364525, 364414, 250363S, 250369, G01T 120
Patent
active
042584280
ABSTRACT:
A gamma camera having a Compton scattered radiation deemphasizer. A summing device produces pulses proportional to the total energy of each scintillation caused by absorption of gamma photons in a scintillation crystal. Scintillation events are displayed at the x,y coordinates of the event on a cathode ray tube screen by unblanking the tube with z pulses applied to its control electrode. The deemphasizer determines where the peaks of total energy pulses fall in a part of the energy spectrum or window and between lower and upper limits. The deemphasizer causes small z pulses to be produced in the part of the spectrum where Compton scatter is most prevalent and causes increasingly larger z pulses as total energy increases to the midpoint of the spectrum where Compton scatter is insignificant. Constant amplitude z pulses are produced at and after the midpoint.
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Alkinson Charles E.
Chin Gary
General Electric Company
Hohenfeldt Ralph G.
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