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dc.contributor.authorUtsunomiya, Satoruja
dc.contributor.authorMonzen, Hajimeja
dc.contributor.authorAkimoto, Mamija
dc.contributor.authorMukumoto, Nobutakaja
dc.contributor.authorIshihara, Yoshitomoja
dc.contributor.authorShiinoki, Takehikoja
dc.contributor.authorNakamura, Mitsuhiroja
dc.contributor.authorMiyabe, Yukija
dc.contributor.authorSato, Sayakaja
dc.contributor.authorMatsuo, Satoruja
dc.contributor.authorHiraoka, Masahiroja
dc.contributor.alternative門前, 一ja
dc.description.abstractWe investigated the neonatal entrance-surface dose (ESD) and doses of scattered radiation emitted by a digital mobile X-ray system. The system is equipped with a novel flat-panel detector and is used in the neonatal intensive care unit. In the present study, the following three experiments were performed on frequently used X-ray-imaging condition: (1) the digital characteristics of the FPD were evaluated; (2) the ESD to a water-equivalent phantom was measured with a patient skin dosimeter (PSD); and (3) the scattered radiation around the incubator was measured with an ionization chamber survey meter. The digital characteristic curve showed that the system had excellent linearity and that the contrast characteristics were not affected by the tube voltage in the range of 50-110 kV. The ESD was 51-52 μGy with an 8-cm-thick phantom and 33-34 μGy with a 4.5-cm phantom, for one exposure. The doses measured around the incubator were 0.1-0.6 μSv or below measurable limits. Use of the new device demonstrates the potential of reducing the ESD to the patient and operator.ja
dc.publisherSpringer Japanja
dc.rightsThe final publication is available at www.springerlink.comja
dc.rightsこの論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。This is not the published version. Please cite only the published version.ja
dc.subjectEntrance-surface doseja
dc.subjectDigital mobile X-ray systemja
dc.subjectFlat-panel detectorja
dc.subjectNeonatal intensive care unitja
dc.titleA feasibility study on reduction of the entrance-surface dose to neonates by use of a new digital mobile X-ray system.ja
dc.type.niitypeJournal Articleja
dc.identifier.jtitleRadiological physics and technologyja
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