US 10,649,104 B2 · Methods and apparatuses for reconstructing incident energy spectrum for a detector

Abstract

A method and apparatus for reconstructing an incident energy spectrum for a detector are disclosed. In this method, an object to be inspected is illuminated with rays, and then rays transmitted through the object to be inspected are received by the detector to convert the received rays into data of a detected energy spectrum. The incident energy spectrum for the detector is reconstructed based on the data of the energy spectrum using a statistical iterative algorithm with a pre-established detector response function. With the above solution of the embodiments, the incident energy spectrum for the detector can be more accurately acquired, thereby reducing a distortion of the incident energy spectrum caused by the detector.

Claims9

Dependent claims

A method for reconstructing an incident energy spectrum for a detector, comprising steps of:

illuminating an object to be inspected with rays;
receiving, by the detector, rays transmitted through the object to be inspected to acquire data of a detected energy spectrum;
and
reconstructing the incident energy spectrum for the detector based on the data of the energy spectrum using a statistical iterative algorithm with a detector response function,
wherein before the reconstructing step, the method further comprises calibrating parameters of the detector response function by collecting energy spectrums of X-ray fluorescence generated by different target materials in a plurality of energy segments, and
wherein the detector response function further comprises a characteristic peak portion and an escape peak portion of the detector.

3 more elements

Dependencies are inferred from the claim text.

Methods and apparatuses for reconstructing incident energy spectrum for a detector

Life of this patent

Methods and apparatuses for reconstructing incident energy spectrum for a detector

Life of this patent

Abstract

Claims9