Radiant energy – Calibration or standardization methods
Reexamination Certificate
2007-12-25
2007-12-25
Porta, David (Department: 2884)
Radiant energy
Calibration or standardization methods
Reexamination Certificate
active
11503170
ABSTRACT:
A processing circuit, which carries out coincidence counting, acquires calibration data so that time delays of γ-ray detection signals from radiation detectors coincide with one another. A technique for acquiring calibration data faster and easily is provided to attain high time precision and respond to multi-channeling of detectors. A signal from a test signal generator is sent to signal processing apparatuses and coincidence count events are generated as a test. The events generated are processed by a delay time control apparatus and a variable delay circuit is controlled to improve the accuracy of coincidence counting.
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Amemiya Kensuke
Ishitsu Takafumi
Matsumoto Takashi
Ueno Yuuichirou
Dickstein & Shapiro LLP
Hitachi , Ltd.
Porta David
Webb Christopher G
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