4-pi Compton imaging with single 3D position-sensitive CdZnTe detector

Autor:	Zhong He, C.E. Lehner, Dan Xu, Feng Zhang
Rok vydání:	2004
Předmět:	Physics Radon transform Physics::Instrumentation and Detectors Scattering business.industry Astrophysics::High Energy Astrophysical Phenomena Detector Gamma ray Near and far field Optics Data acquisition Position (vector) Calibration High Energy Physics::Experiment business
Zdroj:	SPIE Proceedings.
ISSN:	0277-786X
DOI:	10.1117/12.563905
Popis:	A 3D CdZnTe detector can provide 3D position information as well as energy information of each individual interaction when a gamma ray is scattered or absorbed in the detector. This unique feature provides the 3D CdZnTe detector the capability to do Compton imaging with a single detector. After detector calibration, real-time data acquisition and imaging are implemented with a single detector system. Because the detector has a finite size and any point in the detector can be the first scattering position, 3D gamma-ray imaging in near field is possible. In this work we will show the result of the 4π Compton imaging with a single 15mm × 15mm × 10mm CdZnTe detector. Different algorithms for sequence and imaging reconstruction will be addressed and compared. The angular uncertainty is estimated and the most recent results from measurements are presented.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d5ea394020b399f4134008c52275141f https://doi.org/10.1117/12.563905 Zobrazit plný text záznamu