Mini Compton camera based on an array of Frisch-grid CdZnTe detectors

Won Ho Lee; Aleksey Bolotnikov; Taewoong Lee; Giuseppe Camarda; Yonggang Cui; Rubi Gul; Anwar Hossain; Utpal Roy; Ge Yang; Ralph James

doi:10.1109/NSSMIC.2014.7431262

Mini Compton camera based on an array of Frisch-grid CdZnTe detectors

Won Ho Lee, Aleksey Bolotnikov, Taewoong Lee, Giuseppe Camarda, Yonggang Cui, Rubi Gul, Anwar Hossain, Utpal Roy, Ge Yang, Ralph James

Department of Bio-convergence Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We constructed a mini Compton camera based on an array of CdZnTe detectors and assessed its spectral and imaging properties. The entire array consisted of 6×6 Frisch-grid CdZnTe detectors, each with a size of 6×6×15 mm3. Since it is easier and more practical to grow small CdZnTe crystals rather than large monolithic ones, constructing a mosaic array of parallelepiped crystals can be an effective way to build a more efficient, large-volume detector. With the fully operational CdZnTe array, we measured the energy spectra for 133Ba-, 137Cs-, 60Co-radiation sources; we also located these sources using a Compton imaging approach. Although the Compton camera was small enough to hand-carry, its intrinsic efficiency was several orders higher than those generated in previous research using spatially separated scintillator arrays, because our camera measured the interactions inside the CZT detector array, wherein the detector elements were positioned very close to each other.

Original language	English
Title of host publication	2014 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2014
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Print)	9781479960972
DOIs	https://doi.org/10.1109/NSSMIC.2014.7431262
Publication status	Published - 2016 Mar 10
Event	IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2014 - Seattle, United States Duration: 2014 Nov 8 → 2014 Nov 15

Other

Other	IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2014
Country	United States
City	Seattle
Period	14/11/8 → 14/11/15

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Keywords

CdZnTe
Compton Camera
Electronic Collimation
Frisch-Grid

ASJC Scopus subject areas

Nuclear and High Energy Physics
Radiology Nuclear Medicine and imaging

Cite this

Lee, W. H., Bolotnikov, A., Lee, T., Camarda, G., Cui, Y., Gul, R., Hossain, A., Roy, U., Yang, G., & James, R. (2016). Mini Compton camera based on an array of Frisch-grid CdZnTe detectors. In 2014 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2014 [7431262] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/NSSMIC.2014.7431262

Mini Compton camera based on an array of Frisch-grid CdZnTe detectors. / Lee, Won Ho; Bolotnikov, Aleksey; Lee, Taewoong; Camarda, Giuseppe; Cui, Yonggang; Gul, Rubi; Hossain, Anwar; Roy, Utpal; Yang, Ge; James, Ralph.

2014 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2014. Institute of Electrical and Electronics Engineers Inc., 2016. 7431262.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Lee, WH, Bolotnikov, A, Lee, T, Camarda, G, Cui, Y, Gul, R, Hossain, A, Roy, U, Yang, G & James, R 2016, Mini Compton camera based on an array of Frisch-grid CdZnTe detectors. in 2014 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2014., 7431262, Institute of Electrical and Electronics Engineers Inc., IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2014, Seattle, United States, 14/11/8. https://doi.org/10.1109/NSSMIC.2014.7431262

Lee, Won Ho ; Bolotnikov, Aleksey ; Lee, Taewoong ; Camarda, Giuseppe ; Cui, Yonggang ; Gul, Rubi ; Hossain, Anwar ; Roy, Utpal ; Yang, Ge ; James, Ralph. / Mini Compton camera based on an array of Frisch-grid CdZnTe detectors. 2014 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2014. Institute of Electrical and Electronics Engineers Inc., 2016.

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Access to Document

10.1109/NSSMIC.2014.7431262