Radiant energy – Invisible radiant energy responsive electric signalling – Including a radiant energy responsive gas discharge device
Reexamination Certificate
2007-03-13
2007-03-13
Porta, David (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
Including a radiant energy responsive gas discharge device
C250S385100, C378S207000
Reexamination Certificate
active
10774817
ABSTRACT:
An instrument for checking quality of therapeutic x-ray and electron radiation provides modes optimized for both electrons and for photons obtained by physically flipping the unit to interpose the necessary build-up material between the radiation beam and contained detectors. The invention provides an improved method of constructing ionization detectors for improved energy discrimination using such detectors and wire-free operation.
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Bonde Thomas C.
DeFever Kevin L.
Schmidt Daniel G.
Sommerfeldt Myles L.
Boosalis Faye
Porta David
Standard Imaging Inc.
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