A 5-Axis Calibration Stage for Depth-of-Interaction-Correcting Scintillation Crystals

Owen Anderson, Lisa Bläckberg, Salar Sajedi, Hamid Sabet, Lars R. Furenlid

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

New laser-induced optical-barrier technology designed to reduce depth-of-interaction blurring requires a new calibration approach. Calibration by using a collimated beam of gamma rays to acquire a mean detector response function is important for maximum-likelihood estimation of interaction location. We have designed and built a 5-axis calibration stage to meet this need. The calibration system is able to move independently in 3 linear and 2 rotational dimensions to allow for complete control of collimated beam position and direction. This allows us to simulate gamma rays coming through a pinhole from any angle in the field of view. The need for precision in the movements between positions of the system motivated the use of a probe to map out the detector. Collision detection and automation in the software simplifies and speeds up the calibration process.

Original languageEnglish (US)
Title of host publication2020 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728176932
DOIs
StatePublished - 2020
Externally publishedYes
Event2020 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2020 - Boston, United States
Duration: Oct 31 2020Nov 7 2020

Publication series

Name2020 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2020

Conference

Conference2020 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2020
Country/TerritoryUnited States
CityBoston
Period10/31/2011/7/20

ASJC Scopus subject areas

  • Signal Processing
  • Radiology Nuclear Medicine and imaging
  • Nuclear and High Energy Physics

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