Apparatus and method of absorber array for measuring high flux X-ray power spectrum

Abstract

The invention discloses an apparatus and method of an absorber array for measuring high flux X-ray power spectrum. The apparatus includes a lead collimating body, absorber arrays and photoelectric detectors. A row of holes is disposed inside the lead collimating body. The front portion of each hole is a collimating hole used for holding one corresponding absorber array. The rear portion of each hole is a photoelectric detector containing hole used for containing one corresponding photoelectric detector. The collimating holes and the photoelectric detector containing holes are coaxial and connected with each other, but are different in diameter. The absorber arrays and the photoelectric detectors are arranged next to each other. X rays pass through the collimating holes and also are partially attenuated by the built-in absorber arrays, and outgoing X rays are detected by the photoelectric detectors. The collimating holes, absorbers and the detectors are installed in the same body, the adopted equal energy interval design principle enables a group of measured data to be discrete and to less affect each other, and therefore the spectrum unfolding is more accurate.

Description

technical field [0001] The invention relates to a device and a method for measuring an absorber array of high-throughput X-ray energy spectrum, belonging to the technical field of X-ray energy spectrum measurement. Background technique [0002] At present, there are many methods for measuring the energy spectrum of high-throughput medium-energy X-rays in China, including the MLS (Multi-LayerStack) method and the filtered fluorescence method. [0003] In the MLS method, a layer of medium and a detector form a detection section, and a plurality of detection sections are distributed in a straight line along the measurement axis to form a measurement device. The multi-layer medium attenuates the intensity of X-rays multiple times, and the ray energy spectrum is solved through the response function (see "MLS method for high-energy X-ray energy spectrum measurement" Chen Nan, Jing Xiaobing, Gao Feng, Zhang Linwen, Yin Zejie , Li Shiping, Institute of Fluid Physics, Chinese Academ...

AI Technical Summary

Problems solved by technology

[0006] The technical problem of the present invention is: to overcome the problems of large volume, inconvenient operation, crosstalk between data and inaccurate spectrum resolution of the high-throughput X-ray energy spectrum measuring device, and to provide a method for measuring high-throughput X-ray energy spectrum. The device and method of the absorber array of the spectrum, which integrates collimating holes, absorbers, and detectors, adopts the design principle of equal energy intervals, so that a set of measured data is relatively discrete, and the mutual influence is small, so that the spectral analysis is more accurate. accurate

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