Detector Comparison for High-Resolution 3D X-ray Diffraction Imaging for Biospecimen Analysis

Zachary W. Gude, Colt Dudley, Anuj J. Kapadia, Joel A. Greenberg

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This work evaluates two different detector technologies in terms of their performance in making fast, low-signal diffraction measurements. The first detector is a large-area mammography detector that uses a complementary metal-oxide semiconductor (CMOS) crystal, and the second is a cadmium-telluride photon-counting detector. By measuring the diffraction spectra for a diverse range of materials and with acquisition times ranging from 10 seconds and 0.1 seconds, we show how each detector performs as signal-to-noise ratios decrease and counting statistics become less significant. As a result, we show that the photon counting detector slightly better preserves the long-time average signal in short acquisition times in comparison to the CMOS detector when diffraction signals display sharp/narrow features, but that the detectors performed similarly for materials with much broader diffraction signals, like those associated with soft tissue and biological specimen. This leads us to conclude that the photon-counting detector is slightly higher-performing for our purposes.

Original languageEnglish
Title of host publicationAnomaly Detection and Imaging with X-Rays (ADIX) VIII
EditorsAmit Ashok, Joel A. Greenberg, Michael E. Gehm
PublisherSPIE
ISBN (Electronic)9781510661769
DOIs
StatePublished - 2023
Externally publishedYes
EventAnomaly Detection and Imaging with X-Rays (ADIX) VIII 2023 - Orlando, United States
Duration: May 3 2023May 4 2023

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12531
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceAnomaly Detection and Imaging with X-Rays (ADIX) VIII 2023
Country/TerritoryUnited States
CityOrlando
Period05/3/2305/4/23

Keywords

  • CMOS
  • CdTe
  • Detector characterization
  • Pathological specimen analysis tool
  • Photon-Counting
  • X-ray diffraction
  • X-ray diffraction imaging

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