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Ultrafast inorganic scintillator-based front imager for Gigahertz Hard X-ray imaging

Hu, Chen and Zhang, Liyuan and Zhu, Ren-Yuan and Demarteau, Marcel and Wagner, Robert and Xia, Lei and Xie, Junqi and Li, Xuan and Wang, Zhehui and Shih, Yanhua and Smith, Thomas (2019) Ultrafast inorganic scintillator-based front imager for Gigahertz Hard X-ray imaging. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 940 . pp. 223-229. ISSN 0168-9002. http://resolver.caltech.edu/CaltechAUTHORS:20190617-153352649

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Abstract

State-of-the art X-ray imaging cameras using silicon sensors for X-ray detection have demonstrated a frame-rate of 10 MHz and excellent performance for X-ray energies below 20 keV. We proposed a pixelated ultrafast inorganic scintillator-based front imager for GHz hard X-ray imaging. The proposed imager is featured with a total absorption for hard X-ray photons, and provides sub-ns scintillation pulse width crucial for X-ray bunches of a few ns spacing foreseen at the proposed MaRIE facility. We measured temporal response of a dozen ultrafast and fast inorganic scintillators at the 10-ID-B site of the Advanced Photon Source (APS) of ANL. Crystal’s response to hybrid X-ray beam of 30 keV, consisting of singlet bunches of 50 ps width and septuplet bunches of 27 ps width with 2.83 ns bunch spacing, was measured. Ultrafast inorganic scintillators, such as BaF_2:Y and ZnO:Ga, show clearly resolved X-ray bunches for septuplets, as well as no degradation of amplitude for continuous eight septuplets, providing a proof of principle for the ultrafast inorganic scintillator-based total absorption front imager for the proposed MaRIE project.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.nima.2019.06.011DOIArticle
ORCID:
AuthorORCID
Hu, Chen0000-0002-3285-4831
Zhu, Ren-Yuan0000-0003-3091-7461
Wang, Zhehui0000-0001-7826-4063
Additional Information:© 2019 Published by Elsevier. Received 15 November 2018, Revised 27 March 2019, Accepted 7 June 2019, Available online 17 June 2019.
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-SC0011925
Subject Keywords:Ultrafast; Inorganic scintillator; Crystal; Microchannel plate; Rise time; Decay time; FWHM pulse width
Record Number:CaltechAUTHORS:20190617-153352649
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20190617-153352649
Official Citation:Chen Hu, Liyuan Zhang, Ren-Yuan Zhu, Marcel Demarteau, Robert Wagner, Lei Xia, Junqi Xie, Xuan Li, Zhehui Wang, Yanhua Shih, Thomas Smith, Ultrafast inorganic scintillator-based front imager for Gigahertz Hard X-ray imaging, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 940, 2019, Pages 223-229, ISSN 0168-9002, https://doi.org/10.1016/j.nima.2019.06.011. (http://www.sciencedirect.com/science/article/pii/S0168900219308277)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96486
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:17 Jun 2019 22:54
Last Modified:02 Jul 2019 20:32

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