Systems and methods for eliminating cross-talk signals in one or more scanning systems having multiple X-ray sources

Inventors

Carrington, Neil Duncan

Assignees

Rapiscan Systems Inc

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Publication Number

US-12467887-B2

Patent

Publication Date

2025-11-11

Expiration Date


Abstract

The present specification describes a system for eliminating X-ray crosstalk between a plurality of X-ray scanning systems and passive radiation detectors. The system includes a frequency generator for generating a common operational frequency, a high-energy X-ray source or scanning system coupled with the frequency generator for receiving the common operational frequency and configured to modify the pulse repetition frequency of the high-energy X-ray source or scanning system in order to synchronize with the common operational frequency and a low-energy X-ray scanning system and/or passive radiation detection system coupled with the frequency generator for receiving the common operational frequency and having a processing module configured to remove data associated with the common operational frequency at an instance of time if the high-energy X-ray source or scanning system has emitted X-rays at the instance of time.

Core Innovation

The invention relates to eliminating crosstalk between at least a LINAC radiation source and a backscatter radiation source. A signal generator generates at least one common signal comprising a series of pulses, and the common signal indicates instances for the LINAC radiation source to emit X-ray pulses as a function of the common signal.

A first radiation emitting scanning system that includes the LINAC radiation source receives the common signal and causes the LINAC radiation source to emit X-ray pulses as a function of the common signal. A second radiation emitting scanning system that includes the backscatter radiation source receives the common signal and operates concurrently by emitting radiation and generating data concurrent with the first radiation emitting scanning system.

The second radiation emitting scanning system processes the generated data to remove, blank or ignore any data acquired during any instance in which the common signal indicates the LINAC radiation source emitted one of the X-ray pulses. The common signal and coordinated emission support eliminating crosstalk by targeting removal, blanking, or ignoring to the LINAC pulse instances indicated by the common signal.

Claims Coverage

The document includes two independent claims covering a system and a method. Both share the core inventive approach of generating a common pulsed signal, using it to coordinate LINAC X-ray emission, and concurrently acquiring backscatter data that is then removed, blanked, or ignored based on the common signal-indicated LINAC pulse instances.

Common pulsed signal for coordinating LINAC emission and keyed backscatter data removal

A signal generator generates at least one common signal comprising a series of pulses; a first radiation emitting scanning system comprising the LINAC radiation source receives the common signal and causes the LINAC radiation source to emit X-ray pulses as a function of the common signal; and a second radiation emitting scanning system comprising the backscatter radiation source receives the common signal, operates concurrently by emitting radiation and generating data, and processes the data to remove, blank or ignore any data acquired during any instance in which the common signal indicates the LINAC radiation source emitted one of the X-ray pulses.

Concurrent backscatter data acquisition with common-signal-indicated blanking

Generating at least one common signal using a signal generator, wherein the common signal comprises a series of pulses; receiving the common signal at a first radiation emitting scanning system comprising the LINAC radiation source; using the LINAC radiation source of the first radiation emitting scanning system to emit X-ray pulses as a function of the received common signal; receiving the common signal at a second radiation emitting scanning system comprising the backscatter radiation source; emitting radiation concurrent with the first radiation emitting scanning system and generating data concurrent with the first radiation emitting scanning system; and processing the data at the second radiation scanning system to remove, blank or ignore any of said data acquired during any instance in which the common signal indicates the LINAC radiation source emitted one of said X-ray pulses.

Across both independent claims, the inventive coverage centers on generating a common signal comprised of a series of pulses, coordinating LINAC X-ray pulse emission using that common signal, and removing, blanking, or ignoring concurrently acquired backscatter data during the instances indicated by the common signal.

Stated Advantages

Eliminates crosstalk between at least a LINAC radiation source and a backscatter radiation source by removing, blanking or ignoring backscatter data corresponding to LINAC pulse instances indicated by the common signal.

Documented Applications

No documented applications found

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