Development of Position-Sensitive Capacitive Frisch-Grid CsPbBr3 Detectors

A. Kargar*, J. F. Christian, A. Bolotnikov, I. R. Pandey, V. Klepov, W. Zhang, M. G. Kanatzidis, E. Weststrate, M. S. Squillante, M. R. Squillante

*Corresponding author for this work

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

Abstract

Two CsPbBr3 Position-Sensitive Capacitive Frisch Grid (PS-CFG) detectors were fabricated and characterized. The devices' sizes in planar configuration were 3×3×6 mm3 (nominal size).137Cs spectra were collected from two detectors for the cathodes signal with no 3-D correction and with 3-D correction from one of the detectors. The synthesis and the crystal growth of the CsPbBr3 materials are presented, the detector fabrication process is described, and the resulting energy spectra are discussed. The use of the 3-D position sensing technique provides information on the crystal uniformity. This technique was applied and the spatial variation in the histograms of the cathode amplitude versus the anode-to-cathode ratio are presented and discussed. A 2.8% FWHM energy resolution at 662 keV was achieved after 3-D correction from the 3×3×6 mm3 PS-CFG CsPbBr3 detector.

Original languageEnglish (US)
Title of host publication2022 IEEE NSS/MIC RTSD - IEEE Nuclear Science Symposium, Medical Imaging Conference and Room Temperature Semiconductor Detector Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665488723
DOIs
StatePublished - 2022
Event2022 IEEE Nuclear Science Symposium, Medical Imaging Conference, and Room Temperature Semiconductor Detector Conference, IEEE NSS MIC RTSD 2022 - Milano, Italy
Duration: Nov 5 2022Nov 12 2022

Publication series

Name2022 IEEE NSS/MIC RTSD - IEEE Nuclear Science Symposium, Medical Imaging Conference and Room Temperature Semiconductor Detector Conference

Conference

Conference2022 IEEE Nuclear Science Symposium, Medical Imaging Conference, and Room Temperature Semiconductor Detector Conference, IEEE NSS MIC RTSD 2022
Country/TerritoryItaly
CityMilano
Period11/5/2211/12/22

Keywords

  • CsPbBr3 semiconductor
  • Position-sensitive Capacitive Frisch-Grid
  • Room-temperature gamma-ray detector

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Radiology Nuclear Medicine and imaging
  • Instrumentation
  • Nuclear and High Energy Physics

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