Radiological imaging equipment using clipping signal and signal processing device thereof
AssigneeSogang University Research & Business Development Foundation
InventorsMoo Sub Kim, Yong Choi, Ji Woong Jung
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Abstract
Radiological imaging equipment includes a signal detector configured to convert a scintillation signal output from a scintillation crystal into an electrical signal, and a signal processor configured to amplify an output signal of the signal detector and to output a time in which an amplified signal is maintained above a threshold, wherein the signal processor includes a first clipping circuit and a second clipping circuit configured to sequentially clip the amplified signal according to the threshold.
Claims6
Radiological imaging equipment comprising:
- a signal detector configured to convert a scintillation signal output from a scintillation crystal into an electrical signal;
- and
- a signal processor configured to amplify an output signal of the signal detector and to output a time in which an amplified signal is maintained above a threshold,
- wherein the signal processor includes a first clipping circuit and a second clipping circuit configured to sequentially clip the amplified signal according to the threshold.
A signal processing device for radiological imaging equipment, the signal processing device comprising:
- an amplifier configured to amplify an input signal obtained by converting a scintillation signal into an electrical signal;
- a first clipping circuit and a second clipping circuit configured to sequentially clip an output signal of the amplifier according to a threshold;
- and
- a time-to-digital convertor configured to measure an output signal of the second clipping circuit.
The signal processing device of 4, wherein
- a rising edge and a falling edge of the output signal of the second clipping circuit are steeper than a rising edge and a falling edge of an output signal of the first clipping circuit.
Dependencies are inferred from the claim text.