| 15Mcps photon-counting X-ray computed tomography system using a ZnO-MPPC detector and its application to gadolinium imaging. | |
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MedLine Citation:
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PMID: 21795055 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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15Mcps photon-counting X-ray computed tomography (CT) system is a first-generation type and consists of an X-ray generator, a turntable, a translation stage, a two-stage controller, a detector consisting of a 2mm-thick zinc-oxide (ZnO) single-crystal scintillator and an MPPC (multipixel photon counter) module, a counter card (CC), and a personal computer (PC). High-speed photon counting was carried out using the detector in the X-ray CT system. The maximum count rate was 15Mcps (mega counts per second) at a tube voltage of 100kV and a tube current of 1.95mA. Tomography is accomplished by repeated translations and rotations of an object, and projection curves of the object are obtained by the translation. The pulses of the event signal from the module are counted by the CC in conjunction with the PC. The minimum exposure time for obtaining a tomogram was 15min, and photon-counting CT was accomplished using gadolinium-based contrast media. |
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Authors:
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Eiichi Sato; Shigeaki Sugimura; Haruyuki Endo; Yasuyuki Oda; Abulajiang Abudurexiti; Osahiko Hagiwara; Akihiro Osawa; Hiroshi Matsukiyo; Toshiyuki Enomoto; Manabu Watanabe; Shinya Kusachi; Shigehiro Sato; Akira Ogawa; Jun Onagawa |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-7-19 |
Journal Detail:
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Title: Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine Volume: - ISSN: 1872-9800 ISO Abbreviation: - Publication Date: 2011 Jul |
Date Detail:
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Created Date: 2011-7-28 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9306253 Medline TA: Appl Radiat Isot Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Elsevier Ltd. All rights reserved. |
Affiliation:
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Department of Physics, Iwate Medical University, 2-1-1 Nishitokuta, Yahaba, Iwate 028-3694, Japan. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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